Subject: [Fot] TR4A front suspension.

From: Van Mulders Marcel via Fot <[email-masked]>
Date: Sun, 8 Mar 2015 22:35:57 +0100

This is a multi-part message in MIME format.

--===============6661168420103334030==
	boundary="----=_NextPart_000_0006_01D059F0.3ED42CE0"

This is a multi-part message in MIME format.

------=_NextPart_000_0006_01D059F0.3ED42CE0
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

In June 2014 I bought Bob Kramer's TR4A racecar after I crashed my TR3 =
at
the Zandvoort circuit (The Netherlands). It's a great car and it will =
get
better. Of my TR3, I only kept the engine and overdrive dogbox  =
Overhauling
the front suspension, I found that the lower trunnion was moving on the =
bolt
instead of the bushed lower wishbones : the distance pieces in the =
wishbones
where shorter than original, so the trunnion was not clamped by these
distance pieces when fastening the bolt. Correcting this, the upright =
has
less play now, only a little in the trunnion, and this upright with
balljoint can't be forced anymore between the outer ends of the upper
wihbones, the balljoint is 1/2" too far to the rear. Turning the upper
wishbones to the rear (by moving the fulcrum pin) isn't a good option,
because binding will occur. I've drilled new holes for the brackets for =
the
inner ends of the lower wishbones : the suspension is moving without any
binding now but I don't know if I will leave it like that. I wonder if
something is wrong with the uprights? (less than 3=B0 caster?) If I =
measure
the caster, I find 2.2=B0 on both sides, but probably that isn't proving
anything. The chassis is as new, no damage. Any idea's someone?
Another question : trying to get at zero bump steer, the best I get at =
by
moving the steering rack is a J : the wheels are toeing in when lowered =
more
than 3 cm below ride height (minimal to 5cm, then more and more toe in).
Bending the steering arms to the outside, almost touching the brake =
disks
now, has straightened the J a little.  Is it possible to eliminate the =
bump
steer completely, or have we(TR4A-TR6) to accept some bump steer in the
least important part of the suspension travel?
Marcel.

------=_NextPart_000_0006_01D059F0.3ED42CE0
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META name=3DGENERATOR content=3D"MSHTML 11.00.9600.17631"></HEAD>
<BODY>
<DIV><SPAN class=3D733024020-08032015><FONT size=3D2 face=3DArial>In =
June&nbsp;2014 I=20
bought Bob Kramer's TR4A racecar after I crashed my TR3 at the Zandvoort =
circuit=20
(The Netherlands). It's a great car and it will get better.&nbsp;Of my=20
TR3,&nbsp;I&nbsp;only kept the engine and overdrive dogbox&nbsp; =
Overhauling the=20
front suspension, I found that the lower trunnion was moving on the bolt =
instead=20
of the bushed lower wishbones : the distance pieces&nbsp;in the =
wishbones where=20
shorter than original, so the trunnion was not clamped by these distance =

pieces&nbsp;when fastening the bolt. Correcting this, the upright has =
less play=20
now, only a little in the trunnion,&nbsp;and this upright with balljoint =
can't=20
be forced anymore between the outer ends of the upper wihbones, the =
balljoint is=20
1/2" too far to the rear.&nbsp;Turning the upper wishbones to the rear =
(by=20
moving the fulcrum pin)&nbsp;isn't a good option, because binding will =
occur.=20
I've drilled new holes for the brackets for the inner ends of the lower=20
wishbones : the suspension is moving without any binding now but I don't =

know&nbsp;if I will leave it like that.&nbsp;I wonder if something is =
wrong with=20
the uprights? (less than&nbsp;3=B0 caster?) If I measure the caster, I =
find 2.2=B0=20
on both sides, but probably&nbsp;that isn't proving anything. The =
chassis is as=20
new, no damage. Any idea's someone?</FONT></SPAN></DIV>
<DIV><SPAN class=3D733024020-08032015><FONT size=3D2 =
face=3DArial>Another question :=20
trying to get at zero bump steer, the best I&nbsp;get at by moving the =
steering=20
rack&nbsp;is a J : the wheels are&nbsp;toeing in when lowered more than =
3 cm=20
below ride height (minimal to 5cm, then more and more toe in). Bending =
the=20
steering arms to the outside, almost touching the brake disks now, has=20
straightened the J a little.&nbsp; Is it possible to eliminate the bump =
steer=20
completely, or&nbsp;have we(TR4A-TR6)&nbsp;to accept some bump steer in =
the=20
least important part of the suspension travel?</FONT></SPAN></DIV>
<DIV><SPAN class=3D733024020-08032015><FONT size=3D2=20
face=3DArial>Marcel.</FONT></SPAN></DIV></BODY></HTML>

------=_NextPart_000_0006_01D059F0.3ED42CE0--

--===============6661168420103334030==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
[email-masked]

http://www.fot-racing.com

Archive: http://www.team.net/archive

--===============6661168420103334030==--

---

From: Marcel Van Mulders via Fot <[email-masked]>
Date: Tue, 10 Mar 2015 18:51:14 +0100 boundary="----=_NextPart_000_0000_01D05B63.2F78CC00"

------=_NextPart_000_0000_01D05B63.2F78CC00
	boundary="----=_NextPart_001_0001_01D05B63.2F79B660"

------=_NextPart_001_0001_01D05B63.2F79B660
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

I know of your article in Kas Kastners Triumph Preparation Handbook and =
on
my TR3 I could eliminate the bump steer completely with laser and mirror
after fitting a small steering rack (TR7 rack if I remember).
On the TR4A, bending the steering arms to the outside and thus making =
the
track rods 1cm longer improved things a little bit. Also lowering the =
rack
by 0.3cm is a little better. Moving the rack to the rear or to the front =
is
making the bump steer worse. Maybe fitting a smaller steering rack =
(distance
between the inner balljoints) can eliminate the bump steer further?
Marcel

  _____ =20

Van: Bill Babcock [mailto:[email-masked]]=20
Verzonden: zondag 8 maart 2015 23:18
Aan: Van Mulders Marcel
Onderwerp: Re: [Fot] TR4A front suspension.

Geometrically, zero bump steer is achieved when the centerline of the =
upper
and arm lower pivots are in line with the steering linkage pivots, both
inner and outer and the centerline of the tie rod intersects with the
instant center of the upper and lower arms. This isn=92t actually =
achievable
with a trunnion linkage. I got almost all of the bump steer out of =
Peyote by
getting the centerlines right and then moving the rack up and down while
bouncing a laser off a mirror on the control arm onto a target on a =
wall. =20

On Mar 8, 2015, at 11:35 AM, Van Mulders Marcel via Fot =
<[email-masked]>
wrote:

Archive: http://www.team.net/archive
http://autox.team.net/mailman/options/fot/[email-masked]

Bill Babcock
[email-masked]
Editor: Ponostyle
Celebrating Water

Editor: Xtreme Geezer
Fitness and Fun After Forty
503.936.7660
http://www.PonoStyle.com
http://www.Xgeez.com

------=_NextPart_001_0001_01D05B63.2F79B660
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META name=3DGENERATOR content=3D"MSHTML 11.00.9600.17631"></HEAD>
<BODY=20
style=3D"WORD-WRAP: break-word; -webkit-nbsp-mode: space; =
-webkit-line-break: after-white-space">
<DIV dir=3Dltr align=3Dleft><SPAN class=3D136363117-10032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial>I know of your article in Kas =
Kastners&nbsp;Triumph=20
Preparation Handbook and on my TR3 I could eliminate the bump steer =
completely=20
with laser and mirror after fitting a small steering rack (TR7 =
rack&nbsp;if I=20
remember).</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D136363117-10032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial>On the TR4A, bending the steering arms to the =
outside=20
and&nbsp;thus making the track rods&nbsp;1cm longer improved things a =
little=20
bit. Also lowering the rack by 0.3cm is a little better. Moving the rack =
to the=20
rear or to the front is making the bump steer worse. Maybe fitting a =
smaller=20
steering rack (distance between the inner balljoints) can eliminate the =
bump=20
steer further?</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D136363117-10032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial>Marcel</FONT></SPAN></DIV><BR>
<DIV lang=3Dnl class=3DOutlookMessageHeader dir=3Dltr align=3Dleft>
<HR tabIndex=3D-1>
<FONT size=3D2 face=3DTahoma><B>Van:</B> Bill Babcock =
[mailto:[email-masked]]=20
<BR><B>Verzonden:</B> zondag 8 maart 2015 23:18<BR><B>Aan:</B> Van =
Mulders=20
Marcel<BR><B>Onderwerp:</B> Re: [Fot] TR4A front=20
suspension.<BR></FONT><BR></DIV>
<DIV></DIV>Geometrically, zero bump steer is achieved when the =
centerline of the=20
upper and arm lower pivots are in line with the steering linkage pivots, =
both=20
inner and outer and the centerline of the tie rod intersects with the =
instant=20
center of the upper and lower arms. This isn=92t actually achievable =
with a=20
trunnion linkage. I got almost all of the bump steer out of Peyote by =
getting=20
the centerlines right and then moving the rack up and down while =
bouncing a=20
laser off a mirror on the control arm onto a target on a wall.&nbsp;
<DIV><BR></DIV>
<DIV><BR>
<DIV>
<BLOCKQUOTE type=3D"cite">
  <DIV>On Mar 8, 2015, at 11:35 AM, Van Mulders Marcel via Fot &lt;<A=20
  href=3D"mailto:[email-masked]">[email-masked]</A>&gt; =
wrote:</DIV><BR=20
  class=3DApple-interchange-newline>
  <DIV>
  <META name=3DGENERATOR content=3D"MSHTML 11.00.9600.17631">
  <DIV>
  <DIV><SPAN class=3D733024020-08032015><FONT size=3D2 face=3DArial>In =
June&nbsp;2014=20
  I bought Bob Kramer's TR4A racecar after I crashed my TR3 at the =
Zandvoort=20
  circuit (The Netherlands). It's a great car and it will get =
better.&nbsp;Of my=20
  TR3,&nbsp;I&nbsp;only kept the engine and overdrive dogbox&nbsp; =
Overhauling=20
  the front suspension, I found that the lower trunnion was moving on =
the bolt=20
  instead of the bushed lower wishbones : the distance pieces&nbsp;in =
the=20
  wishbones where shorter than original, so the trunnion was not clamped =
by=20
  these distance pieces&nbsp;when fastening the bolt. Correcting this, =
the=20
  upright has less play now, only a little in the trunnion,&nbsp;and =
this=20
  upright with balljoint can't be forced anymore between the outer ends =
of the=20
  upper wihbones, the balljoint is 1/2" too far to the =
rear.&nbsp;Turning the=20
  upper wishbones to the rear (by moving the fulcrum pin)&nbsp;isn't a =
good=20
  option, because binding will occur. I've drilled new holes for the =
brackets=20
  for the inner ends of the lower wishbones : the suspension is moving =
without=20
  any binding now but I don't know&nbsp;if I will leave it like =
that.&nbsp;I=20
  wonder if something is wrong with the uprights? (less than&nbsp;3=B0 =
caster?) If=20
  I measure the caster, I find 2.2=B0 on both sides, but =
probably&nbsp;that isn't=20
  proving anything. The chassis is as new, no damage. Any idea's=20
  someone?</FONT></SPAN></DIV>
  <DIV><SPAN class=3D733024020-08032015><FONT size=3D2 =
face=3DArial>Another question :=20
  trying to get at zero bump steer, the best I&nbsp;get at by moving the =

  steering rack&nbsp;is a J : the wheels are&nbsp;toeing in when lowered =
more=20
  than 3 cm below ride height (minimal to 5cm, then more and more toe =
in).=20
  Bending the steering arms to the outside, almost touching the brake =
disks now,=20
  has straightened the J a little.&nbsp; Is it possible to eliminate the =
bump=20
  steer completely, or&nbsp;have we(TR4A-TR6)&nbsp;to accept some bump =
steer in=20
  the least important part of the suspension travel?</FONT></SPAN></DIV>
  <DIV><SPAN class=3D733024020-08032015><FONT size=3D2=20
  =
face=3DArial>Marcel.</FONT></SPAN></DIV></DIV>___________________________=
____________________<BR><A=20
  =
href=3D"mailto:[email-masked]">[email-masked]</A><BR><BR>http://w=
ww.fot-racing.com<BR><BR>Donate:=20
  http://www.team.net/donate.html<BR>Archive:=20
  http://www.team.net/archive<BR>Forums:=20
  http://www.team.net/forums<BR>Unsubscribe/Manage:=20
  =
http://autox.team.net/mailman/options/fot/[email-masked]<BR><BR><BR><=
/DIV></BLOCKQUOTE></DIV><BR>
<DIV apple-content-edited=3D"true">
<DIV=20
style=3D"WORD-WRAP: break-word; FONT-FAMILY: Helvetica; FONT-VARIANT: =
normal; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; =
FONT-WEIGHT: normal; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; =
WIDOWS: 2; LETTER-SPACING: normal; LINE-HEIGHT: normal; TEXT-INDENT: =
0px; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; =
-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px">
<DIV=20
style=3D"WORD-WRAP: break-word; FONT-VARIANT: normal; WHITE-SPACE: =
normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); =
ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; LINE-HEIGHT: normal; =
TEXT-INDENT: 0px; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px">
<DIV=20
style=3D"WORD-WRAP: break-word; FONT-VARIANT: normal; WHITE-SPACE: =
normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); =
ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; LINE-HEIGHT: normal; =
TEXT-INDENT: 0px; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px">
<DIV=20
style=3D"WORD-WRAP: break-word; FONT-VARIANT: normal; WHITE-SPACE: =
normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); =
ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; LINE-HEIGHT: normal; =
TEXT-INDENT: 0px; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px">
<DIV><FONT face=3D"Comic Sans MS"><SPAN style=3D"FONT-SIZE: 14px">Bill=20
Babcock</SPAN></FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS"><SPAN style=3D"FONT-SIZE: 14px"><A=20
href=3D"mailto:[email-masked]">[email-masked]</A></SPAN></FONT></=
DIV>
<DIV style=3D"FONT-WEIGHT: normal; FONT-STYLE: normal"><FONT =
face=3DGeorgia><SPAN=20
style=3D"FONT-SIZE: 14px">Editor: Ponostyle</SPAN></FONT></DIV>
<DIV><FONT face=3DGeorgia><SPAN style=3D"FONT-SIZE: 14px"><I>Celebrating =

Water</I></SPAN></FONT></DIV>
<DIV style=3D"FONT-WEIGHT: normal; FONT-STYLE: normal"><FONT =
face=3DGeorgia><SPAN=20
style=3D"FONT-SIZE: 14px"><BR></SPAN></FONT></DIV>
<DIV style=3D"FONT-WEIGHT: normal; FONT-STYLE: normal"><FONT =
face=3DGeorgia><SPAN=20
style=3D"FONT-SIZE: 14px">Editor: Xtreme Geezer</SPAN></FONT></DIV>
<DIV style=3D"FONT-WEIGHT: normal; FONT-STYLE: normal"><I=20
style=3D"FONT-SIZE: 14px"><FONT face=3DGeorgia>Fitness and Fun After=20
Forty</FONT></I></DIV>
<DIV style=3D"FONT-WEIGHT: normal; FONT-STYLE: normal"><FONT =
face=3DGeorgia><SPAN=20
style=3D"FONT-SIZE: 14px">503.936.7660</SPAN></FONT></DIV>
<DIV style=3D"FONT-WEIGHT: normal; FONT-STYLE: normal"><FONT =
face=3DGeorgia><SPAN=20
style=3D"FONT-SIZE: 14px"><A=20
href=3D"http://www.PonoStyle.com">http://www.PonoStyle.com</A></SPAN></FO=
NT></DIV>
<DIV style=3D"FONT-WEIGHT: normal; FONT-STYLE: normal"><FONT =
face=3DGeorgia><SPAN=20
style=3D"FONT-SIZE: 14px"><A=20
href=3D"http://www.Xgeez.com">http://www.Xgeez.com</A></SPAN></FONT></DIV=
></DIV></DIV></DIV></DIV></DIV><BR></DIV></BODY></HTML>

------=_NextPart_001_0001_01D05B63.2F79B660--

------=_NextPart_000_0000_01D05B63.2F78CC00
	name="P1010058.JPG"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
	filename="P1010058.JPG"

------=_NextPart_000_0000_01D05B63.2F78CC00
	name="P1010001.JPG"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
	filename="P1010001.JPG"

------=_NextPart_000_0000_01D05B63.2F78CC00
	name="P1010003.JPG"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
	filename="P1010003.JPG"

------=_NextPart_000_0000_01D05B63.2F78CC00
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

------=_NextPart_000_0000_01D05B63.2F78CC00--

---

From: Marcel Van Mulders via Fot <[email-masked]>
Date: Tue, 10 Mar 2015 19:13:06 +0100

--===============3257499732723685719==
	boundary="----=_NextPart_000_0003_01D05B66.3DAE9DB0"

------=_NextPart_000_0003_01D05B66.3DAE9DB0
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

=20

  _____ =20

Van: Marcel Van Mulders [mailto:[email-masked]]=20
Verzonden: dinsdag 10 maart 2015 19:04
Aan: 'Jack Wheeler'
Onderwerp: RE: [Fot] TR4A front suspension.

All the parts are TR-4A-TR6, so the trunnions are 3=B0 (all TR trunnions =
that
have removable trunnion bolts are handed, trunnions with pressed in pins =
can
be 0=B0 or 3=B0).
"...the lower trunnion should rotate around the bolt..." If I understand
what you mean, I don't believe this is correct : the trunnion bolt is
clamping the distance pieces (short pieces of steel tube that slide over =
the
bolt and rotate in the outer wishbone bushings) onto the trunnion and =
hence
the bolt, trunnion and distance pieces should rotate together and only =
the
wishbones can rotate in respect to the bolt (and trunnion and distance
pieces). I have assembled the suspension in this way, eliminating thus =
the
play of the trunnion on the bolt and this is the reason I had to drill =
new
holes , more to the rear, in order to get the upperr end of the uprights
between the outer ends of the upper wishbones. All parts and also the
chassis seem to be all right. Maybe I get it wrong anyway with the
assembling of the suspension parts
Marcel.
=20
=20

  _____ =20

Van: Jack Wheeler [mailto:[email-masked]]=20
Verzonden: zondag 8 maart 2015 23:40
Aan: Van Mulders Marcel
Onderwerp: Re: [Fot] TR4A front suspension.

Do you have the TR-4A uprights and trunions?  The TR-4A trunion is just =
the
brass piece that fits in between the lower wishbone arms and a bolt =
slides
through it, instead of the fulcrum pin (pressed into the trunion), as =
you
would have had on your TR-3.  The lower trunion should rotate on the =
bolt,
and the wishbone arm bushings.  There is a left and right hand, and when
properly installed, you should have about 3 degrees of positive castor =
on
both sides.  I raced a TR-4A for 25 years, so I know the suspension
intimately!  Good luck.

Jack

  _____ =20

From: Van Mulders Marcel via Fot <[email-masked]>
To: [email-masked]=20
Sent: Sunday, March 8, 2015 5:35 PM
Subject: [Fot] TR4A front suspension.

http://www.fot-racing.com <http://www.fot-racing.com/>=20

Archive: http://www.team.net/archive
http://autox.team.net/mailman/options/fot/[email-masked]

------=_NextPart_000_0003_01D05B66.3DAE9DB0
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META name=3DGENERATOR content=3D"MSHTML 11.00.9600.17631"></HEAD>
<BODY>
<DIV dir=3Dltr align=3Dleft>&nbsp;</DIV><BR>
<DIV lang=3Dnl class=3DOutlookMessageHeader dir=3Dltr align=3Dleft>
<HR tabIndex=3D-1>
<FONT size=3D2 face=3DTahoma><B>Van:</B> Marcel Van Mulders=20
[mailto:[email-masked]] <BR><B>Verzonden:</B> dinsdag 10 =
maart=20
2015 19:04<BR><B>Aan:</B> 'Jack Wheeler'<BR><B>Onderwerp:</B> RE: [Fot] =
TR4A=20
front suspension.<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D455354617-10032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial>All the parts are TR-4A-TR6, so the trunnions are =
3=B0 (all TR=20
trunnions that have&nbsp;removable trunnion bolts are handed, trunnions =
with=20
pressed in pins can be 0=B0 or 3=B0).</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D455354617-10032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial>"...the lower trunnion should rotate around the =
bolt..." If I=20
understand what you mean, I don't believe this is correct : the trunnion =
bolt is=20
clamping the distance pieces (short pieces of steel tube that slide over =
the=20
bolt and rotate in the outer&nbsp;wishbone bushings) onto the trunnion =
and hence=20
the bolt, trunnion and distance pieces should rotate together and only =
the=20
wishbones can rotate in respect to the bolt (and trunnion and distance =
pieces).=20
I have assembled the suspension in this way, eliminating thus the play =
of the=20
trunnion on the bolt and this is the reason I had to drill new holes , =
more to=20
the rear, in order to get the upperr end of the uprights between the =
outer ends=20
of the upper wishbones. All parts and also the chassis seem to be all =
right.=20
Maybe I get it wrong anyway with the assembling of the suspension=20
parts</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D455354617-10032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial>Marcel.</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D455354617-10032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D455354617-10032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial></FONT></SPAN>&nbsp;</DIV><FONT color=3D#0000ff =
size=3D2=20
face=3DArial></FONT><BR>
<DIV lang=3Dnl class=3DOutlookMessageHeader dir=3Dltr align=3Dleft>
<HR tabIndex=3D-1>
<FONT size=3D2 face=3DTahoma><B>Van:</B> Jack Wheeler=20
[mailto:[email-masked]] <BR><B>Verzonden:</B> zondag 8 maart =
2015=20
23:40<BR><B>Aan:</B> Van Mulders Marcel<BR><B>Onderwerp:</B> Re: [Fot] =
TR4A=20
front suspension.<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV=20
style=3D"FONT-SIZE: 16px; FONT-FAMILY: HelveticaNeue, Helvetica Neue, =
Helvetica, Arial, Lucida Grande, sans-serif; COLOR: #000; =
BACKGROUND-COLOR: #fff">
<DIV id=3Dyui_3_16_0_1_1425815565626_10469 dir=3Dltr>Do you have the =
TR-4A uprights=20
and trunions?&nbsp; The TR-4A trunion is just the brass piece that fits =
in=20
between the lower wishbone arms and a bolt slides through it, instead of =
the=20
fulcrum pin (pressed into the trunion), as you would have had on your=20
TR-3.&nbsp; The lower trunion should rotate on the bolt, and the =
wishbone arm=20
bushings.&nbsp; There is a left and right hand, and when properly =
installed, you=20
should have about 3 degrees of positive castor on both sides.&nbsp; I =
raced a=20
TR-4A for 25 years, so I know the suspension intimately!&nbsp; Good =
luck.</DIV>
<DIV id=3Dyui_3_16_0_1_1425815565626_10468><BR></DIV>
<DIV id=3Dyui_3_16_0_1_1425815565626_10467 dir=3Dltr>Jack<BR></DIV>
<DIV id=3Dyui_3_16_0_1_1425815565626_10363><SPAN></SPAN></DIV><BR>
<DIV id=3Dyui_3_16_0_1_1425815565626_10335=20
style=3D"FONT-SIZE: 16px; FONT-FAMILY: HelveticaNeue, Helvetica Neue, =
Helvetica, Arial, Lucida Grande, sans-serif">
<DIV id=3Dyui_3_16_0_1_1425815565626_10334=20
style=3D"FONT-SIZE: 16px; FONT-FAMILY: HelveticaNeue, Helvetica Neue, =
Helvetica, Arial, Lucida Grande, sans-serif">
<DIV id=3Dyui_3_16_0_1_1425815565626_10333 dir=3Dltr>
<HR SIZE=3D1>
<FONT id=3Dyui_3_16_0_1_1425815565626_10466 size=3D2 =
face=3DArial><B><SPAN=20
style=3D"FONT-WEIGHT: bold">From:</SPAN></B> Van Mulders Marcel via Fot=20
&lt;[email-masked]&gt;<BR><B><SPAN style=3D"FONT-WEIGHT: =
bold">To:</SPAN></B>=20
[email-masked] <BR><B><SPAN style=3D"FONT-WEIGHT: =
bold">Sent:</SPAN></B>=20
Sunday, March 8, 2015 5:35 PM<BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> [Fot] TR4A front=20
suspension.<BR></FONT></DIV>
<DIV id=3Dyui_3_16_0_1_1425815565626_10340 class=3Dy_msg_container><BR>
<DIV id=3Dyiv2435760872>
<DIV id=3Dyui_3_16_0_1_1425815565626_10339>
<DIV id=3Dyui_3_16_0_1_1425815565626_10338><SPAN=20
id=3Dyui_3_16_0_1_1425815565626_10337 =
class=3Dyiv2435760872733024020-08032015><FONT=20
id=3Dyui_3_16_0_1_1425815565626_10336 size=3D2 face=3DArial>In =
June&nbsp;2014 I bought=20
Bob Kramer's TR4A racecar after I crashed my TR3 at the Zandvoort =
circuit (The=20
Netherlands). It's a great car and it will get better.&nbsp;Of my=20
TR3,&nbsp;I&nbsp;only kept the engine and overdrive dogbox&nbsp; =
Overhauling the=20
front suspension, I found that the lower trunnion was moving on the bolt =
instead=20
of the bushed lower wishbones : the distance pieces&nbsp;in the =
wishbones where=20
shorter than original, so the trunnion was not clamped by these distance =

know&nbsp;if I will leave it like that.&nbsp;I wonder if something is =
wrong with=20
the uprights? (less than&nbsp;3=B0 caster?) If I measure the caster, I =
find 2.2=B0=20
on both sides, but probably&nbsp;that isn't proving anything. The =
chassis is as=20
new, no damage. Any idea's someone?</FONT></SPAN></DIV>
<DIV id=3Dyui_3_16_0_1_1425815565626_10343><SPAN=20
id=3Dyui_3_16_0_1_1425815565626_10342 =
class=3Dyiv2435760872733024020-08032015><FONT=20
id=3Dyui_3_16_0_1_1425815565626_10341 size=3D2 face=3DArial>Another =
question : trying=20
to get at zero bump steer, the best I&nbsp;get at by moving the steering =

rack&nbsp;is a J : the wheels are&nbsp;toeing in when lowered more than =
3 cm=20
below ride height (minimal to 5cm, then more and more toe in). Bending =
the=20
steering arms to the outside, almost touching the brake disks now, has=20
straightened the J a little.&nbsp; Is it possible to eliminate the bump =
steer=20
completely, or&nbsp;have we(TR4A-TR6)&nbsp;to accept some bump steer in =
the=20
least important part of the suspension travel?</FONT></SPAN></DIV>
<DIV id=3Dyui_3_16_0_1_1425815565626_10407><SPAN=20
class=3Dyiv2435760872733024020-08032015><FONT size=3D2=20
face=3DArial>Marcel.</FONT></SPAN></DIV></DIV></DIV><BR>_________________=
______________________________<BR><A=20
href=3D"mailto:[email-masked]"=20
ymailto=3D"mailto:[email-masked]">[email-masked]</A><BR><BR><A=20
href=3D"http://www.fot-racing.com/"=20
target=3D_blank>http://www.fot-racing.com</A><BR><BR>Donate: <A=20
href=3D"http://www.team.net/donate.html"=20
target=3D_blank>http://www.team.net/donate.html</A><BR>Archive: <A=20
href=3D"http://www.team.net/archive"=20
target=3D_blank>http://www.team.net/archive</A><BR>Forums: <A=20
href=3D"http://www.team.net/forums"=20
target=3D_blank>http://www.team.net/forums</A><BR>Unsubscribe/Manage: <A =

href=3D"http://autox.team.net/mailman/options/fot/[email-masked]"=
=20
target=3D_blank>http://autox.team.net/mailman/options/fot/jwheeler1947@ya=
hoo.com</A><BR><BR><BR><BR><BR></DIV></DIV></DIV></DIV></BODY></HTML>

------=_NextPart_000_0003_01D05B66.3DAE9DB0--

--===============3257499732723685719==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

--===============3257499732723685719==--

---

From: Bob Kramer via Fot <[email-masked]>
Date: Tue, 10 Mar 2015 19:12:57 +0000

Marcel.

I used GoodParts TR6 suspension bushings in the TR4A. I can't remember if it was just the rear parts that had special washers with slight recesses in them to catch and hold the steel tube bushings or if the front has them too, but I'm with Jack in that I think that once assembled the bolt is fixed and the bushings/trunnion rotate . The castellated nut and cotter pin allow you to get it all very tight, but not so tight that it doesn't want to move. I also used GoodParts Steering rack aluminum blocks but had them machined down to get a reasonable compromise with regards to bump steer. You may be able to do better than I did via bending the arms but I was happy with where it ended up. Look up GoodParts stuff at:

https://www.goodparts.com/shop/index.php?productID=275

Bob Kramer
[email-masked]

---- Marcel Van Mulders via Fot <[email-masked]> wrote: 
>  
> 
>   _____  
> 
> Van: Marcel Van Mulders [mailto:[email-masked]] 
> All the parts are TR-4A-TR6, so the trunnions are 3° (all TR trunnions that
> have removable trunnion bolts are handed, trunnions with pressed in pins can
> be 0° or 3°).
> clamping the distance pieces (short pieces of steel tube that slide over the
> bolt and rotate in the outer wishbone bushings) onto the trunnion and hence
> the bolt, trunnion and distance pieces should rotate together and only the
> pieces). I have assembled the suspension in this way, eliminating thus the
> play of the trunnion on the bolt and this is the reason I had to drill new
>   _____  
> Van: Jack Wheeler [mailto:[email-masked]] 
> Do you have the TR-4A uprights and trunions?  The TR-4A trunion is just the
> brass piece that fits in between the lower wishbone arms and a bolt slides
> through it, instead of the fulcrum pin (pressed into the trunion), as you
> would have had on your TR-3.  The lower trunion should rotate on the bolt,
> properly installed, you should have about 3 degrees of positive castor on
>   _____  
> To: [email-masked] 
> In June 2014 I bought Bob Kramer's TR4A racecar after I crashed my TR3 at
> the Zandvoort circuit (The Netherlands). It's a great car and it will get
> better. Of my TR3, I only kept the engine and overdrive dogbox  Overhauling
> the front suspension, I found that the lower trunnion was moving on the bolt
> instead of the bushed lower wishbones : the distance pieces in the wishbones
> distance pieces when fastening the bolt. Correcting this, the upright has
> because binding will occur. I've drilled new holes for the brackets for the
> something is wrong with the uprights? (less than 3° caster?) If I measure
> the caster, I find 2.2° on both sides, but probably that isn't proving
> Another question : trying to get at zero bump steer, the best I get at by
> moving the steering rack is a J : the wheels are toeing in when lowered more
> Bending the steering arms to the outside, almost touching the brake disks
> now, has straightened the J a little.  Is it possible to eliminate the bump
> http://www.fot-racing.com <http://www.fot-racing.com/> 
> 
> Donate: http://www.team.net/donate.html
> Forums: http://www.team.net/forums
> Unsubscribe/Manage:

Donate: http://www.team.net/donate.html
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/[email-masked]

---

From: Marcel Van Mulders via Fot <[email-masked]>
Date: Sun, 15 Mar 2015 15:33:16 +0100

--===============3075944579113849421==
	boundary="----=_NextPart_000_0000_01D05F35.5B4CA740"

------=_NextPart_000_0000_01D05F35.5B4CA740
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

=20

  _____ =20

Van: Marcel Van Mulders [mailto:[email-masked]]=20
Verzonden: zondag 15 maart 2015 15:28
Aan: 'davehogye'
Onderwerp: RE: [Fot] FW: TR4A front suspension.

Quoting Dave : "... of course the trunnions are sided...". Unbelievable, =
but
the left lower trunnion is mounted on the right side of the car and vice
versa. I have worked on the front suspension during 5 evenings till =
01.00 am
and still didn't see it, although these trunnions are marked RH and LH. =
I
noticed it this morning when starting to fit adjustable upper inner =
fulcrum
pins. When correctly fitting the lower outer trunnion bolt, only the =
part of
the upright that is screwed in the trunnion is allowing a little =
movement ,
the upper ball joint could not be forced between the upper
(original)wishbones. This is the case on both sides of the car and the =
upper
ball joint is 1cm more to the front than the lower trunnion when the car =
is
level(=3D a little negative caster). I'll report on this forum when I've
swapped the trunnions and uprights next week.
Of course I don't want to blame anyone. Everyone does make mistakes and =
this
TR4A of Bob Kramer is a very good car with many great features. I'm very
pleased with it and I expect to run in the front.
Marcel.
=20
van: davehogye [mailto:[email-masked]]=20
Verzonden: dinsdag 10 maart 2015 20:07
Aan: Marcel Van Mulders
Onderwerp: Re: [Fot] FW: TR4A front suspension.

RevingtonTR has adjustable upper, inner fulcrum pins, which allow camber
adjustment, but also allow the upright to find a happy place without =
force.
I would think that if everything is within factory specs, the upright =
should
align as long as you have the 3 degree trunnion.  Of course the 3 degree
trunnions are sided.

The adjustable fulcrum pin is probably not allowed by your rule book.  I =
use
them on my TR3 to get negative camber without modifying/shortening the =
upper
arms.  These adjustable pins can be flipped depending on the ride =
height.
They also come with spacers that fit between the ball joint and the =
A-arms
for further caster adjustment.

Dave H.

  _____ =20

From: "Marcel Van Mulders via Fot" <[email-masked]>
To: [email-masked]
Sent: Tuesday, March 10, 2015 11:13:06 AM
Subject: [Fot] FW:  TR4A front suspension.

=20

  _____ =20

  _____ =20

Jack

  _____ =20

Archive: http://www.team.net/archive
http://autox.team.net/mailman/options/fot/[email-masked]

------=_NextPart_000_0000_01D05F35.5B4CA740
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META name=3DGENERATOR content=3D"MSHTML 11.00.9600.17690"></HEAD>
<BODY>
<DIV dir=3Dltr align=3Dleft>&nbsp;</DIV><BR>
<DIV lang=3Dnl class=3DOutlookMessageHeader dir=3Dltr align=3Dleft>
<HR tabIndex=3D-1>
<FONT size=3D2 face=3DTahoma><B>Van:</B> Marcel Van Mulders=20
[mailto:[email-masked]] <BR><B>Verzonden:</B> zondag 15 =
maart=20
2015 15:28<BR><B>Aan:</B> 'davehogye'<BR><B>Onderwerp:</B> RE: [Fot] FW: =
TR4A=20
front suspension.<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D240140614-15032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial>Quoting Dave : "... of course the trunnions are =
sided...".=20
Unbelievable, but the left lower trunnion is mounted on the right side =
of the=20
car and vice versa. I have worked on the front suspension during 5 =
evenings till=20
01.00 am and still&nbsp;didn't see it, although these trunnions are =
marked RH=20
and LH. I noticed it this morning when starting to&nbsp;fit adjustable =
upper=20
inner fulcrum pins. When correctly fitting the lower outer trunnion =
bolt, only=20
the part of the upright that is screwed in the trunnion is allowing a=20
little&nbsp;movement&nbsp;, the upper ball joint could not be forced =
between the=20
upper (original)wishbones. This is the case on both sides of the car and =
the=20
upper ball joint is 1cm more to the front than the lower trunnion when =
the car=20
is level(=3D a little negative caster). I'll report on this forum when =
I've=20
swapped the trunnions and uprights next week.</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D240140614-15032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial>Of course I don't want to blame anyone. Everyone =
does make=20
mistakes and this TR4A of Bob Kramer is a very good car with many great=20
features. I'm very pleased with it and I expect to run in the=20
front.</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D240140614-15032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial>Marcel.</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D240140614-15032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D240140614-15032015><FONT =
color=3D#0000ff=20
size=3D2 face=3DArial>v</FONT></SPAN><FONT size=3D2 =
face=3DTahoma><B>an:</B> davehogye=20
[mailto:[email-masked]] <BR><B>Verzonden:</B> dinsdag 10 maart 2015 =

20:07<BR><B>Aan:</B> Marcel Van Mulders<BR><B>Onderwerp:</B> Re: [Fot] =
FW: TR4A=20
front suspension.<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: Arial; COLOR: #000000">
<DIV>RevingtonTR has adjustable upper, inner fulcrum pins, which allow =
camber=20
adjustment, but also allow the upright to find a happy place without =
force.=20
&nbsp;I would think that if everything is within factory specs, the =
upright=20
should align as long as you have the 3 degree trunnion. &nbsp;Of course =
the 3=20
degree trunnions are sided.<BR></DIV>
<DIV>The adjustable fulcrum pin is probably not allowed by your rule =
book.=20
&nbsp;I use them on my TR3 to get negative camber without =
modifying/shortening=20
the upper arms. &nbsp;These adjustable pins can be flipped depending on =
the ride=20
height. &nbsp;They also come with spacers that fit between the ball =
joint and=20
the A-arms for further caster adjustment.</DIV>
<DIV><BR></DIV>
<DIV>Dave H.</DIV>
<DIV><BR></DIV>
<HR id=3Dzwchr>

<DIV=20
style=3D"FONT-SIZE: 12pt; TEXT-DECORATION: none; FONT-FAMILY: =
Helvetica,Arial,sans-serif; FONT-WEIGHT: normal; COLOR: #000; =
FONT-STYLE: normal"><B>From:=20
</B>"Marcel Van Mulders via Fot" &lt;[email-masked]&gt;<BR><B>To:=20
</B>[email-masked]<BR><B>Sent: </B>Tuesday, March 10, 2015 11:13:06=20
AM<BR><B>Subject: </B>[Fot] FW: &nbsp;TR4A front suspension.<BR>
<DIV><BR></DIV>
<DIV dir=3Dltr align=3Dleft>&nbsp;</DIV><BR>
<DIV lang=3Dnl class=3DOutlookMessageHeader dir=3Dltr align=3Dleft>
<HR>
<SPAN style=3D"FONT-SIZE: small; FONT-FAMILY: Tahoma" size=3D"2" =
face=3D"Tahoma"=20
data-mce-style=3D"font-family: Tahoma; font-size: small;"><B>Van:</B> =
Marcel Van=20
Mulders [mailto:[email-masked]] <BR><B>Verzonden:</B> =
dinsdag 10=20
maart 2015 19:04<BR><B>Aan:</B> 'Jack Wheeler'<BR><B>Onderwerp:</B> RE: =
[Fot]=20
TR4A front suspension.<BR></SPAN><BR></DIV>
<DIV></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D455354617-10032015><SPAN=20
style=3D"FONT-SIZE: small; FONT-FAMILY: Arial; COLOR: #0000ff" =
size=3D"2"=20
face=3D"Arial"=20
data-mce-style=3D"color: #0000ff; font-family: Arial; font-size: small;" =

color=3D"#0000ff">All the parts are TR-4A-TR6, so the trunnions are 3=B0 =
(all TR=20
trunnions that have&nbsp;removable trunnion bolts are handed, trunnions =
with=20
pressed in pins can be 0=B0 or 3=B0).</SPAN></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D455354617-10032015><SPAN=20
style=3D"FONT-SIZE: small; FONT-FAMILY: Arial; COLOR: #0000ff" =
size=3D"2"=20
face=3D"Arial"=20
data-mce-style=3D"color: #0000ff; font-family: Arial; font-size: small;" =

color=3D"#0000ff">"...the lower trunnion should rotate around the =
bolt..." If I=20
understand what you mean, I don't believe this is correct : the trunnion =
bolt is=20
clamping the distance pieces (short pieces of steel tube that slide over =
the=20
bolt and rotate in the outer&nbsp;wishbone bushings) onto the trunnion =
and hence=20
the bolt, trunnion and distance pieces should rotate together and only =
the=20
wishbones can rotate in respect to the bolt (and trunnion and distance =
pieces).=20
I have assembled the suspension in this way, eliminating thus the play =
of the=20
trunnion on the bolt and this is the reason I had to drill new holes , =
more to=20
the rear, in order to get the upperr end of the uprights between the =
outer ends=20
of the upper wishbones. All parts and also the chassis seem to be all =
right.=20
Maybe I get it wrong anyway with the assembling of the suspension=20
parts</SPAN></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D455354617-10032015><SPAN=20
style=3D"FONT-SIZE: small; FONT-FAMILY: Arial; COLOR: #0000ff" =
size=3D"2"=20
face=3D"Arial"=20
data-mce-style=3D"color: #0000ff; font-family: Arial; font-size: small;" =

color=3D"#0000ff">Marcel.</SPAN></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D455354617-10032015><SPAN=20
style=3D"FONT-SIZE: small; FONT-FAMILY: Arial; COLOR: #0000ff" =
size=3D"2"=20
face=3D"Arial"=20
data-mce-style=3D"color: #0000ff; font-family: Arial; font-size: small;" =

color=3D"#0000ff"></SPAN></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D455354617-10032015><SPAN=20
style=3D"FONT-SIZE: small; FONT-FAMILY: Arial; COLOR: #0000ff" =
size=3D"2"=20
face=3D"Arial"=20
data-mce-style=3D"color: #0000ff; font-family: Arial; font-size: small;" =

color=3D"#0000ff"></SPAN></SPAN>&nbsp;</DIV><SPAN=20
style=3D"FONT-SIZE: small; FONT-FAMILY: Arial; COLOR: #0000ff" =
size=3D"2"=20
face=3D"Arial"=20
data-mce-style=3D"color: #0000ff; font-family: Arial; font-size: small;" =

color=3D"#0000ff"></SPAN><BR>
<DIV lang=3Dnl class=3DOutlookMessageHeader dir=3Dltr align=3Dleft>
<HR>
<SPAN style=3D"FONT-SIZE: small; FONT-FAMILY: Tahoma" size=3D"2" =
face=3D"Tahoma"=20
data-mce-style=3D"font-family: Tahoma; font-size: small;"><B>Van:</B> =
Jack Wheeler=20
[mailto:[email-masked]] <BR><B>Verzonden:</B> zondag 8 maart =
2015=20
23:40<BR><B>Aan:</B> Van Mulders Marcel<BR><B>Onderwerp:</B> Re: [Fot] =
TR4A=20
front suspension.<BR></SPAN><BR></DIV>
<DIV></DIV>
<DIV=20
style=3D"FONT-SIZE: 16px; FONT-FAMILY: HelveticaNeue, Helvetica Neue, =
Helvetica, Arial, Lucida Grande, sans-serif; COLOR: #000; =
BACKGROUND-COLOR: #fff">
<DIV id=3Dyui_3_16_0_1_1425815565626_10469 dir=3Dltr>Do you have the =
TR-4A uprights=20
and trunions?&nbsp; The TR-4A trunion is just the brass piece that fits =
in=20
between the lower wishbone arms and a bolt slides through it, instead of =
the=20
fulcrum pin (pressed into the trunion), as you would have had on your=20
TR-3.&nbsp; The lower trunion should rotate on the bolt, and the =
wishbone arm=20
bushings.&nbsp; There is a left and right hand, and when properly =
installed, you=20
should have about 3 degrees of positive castor on both sides.&nbsp; I =
raced a=20
TR-4A for 25 years, so I know the suspension intimately!&nbsp; Good =
luck.</DIV>
<DIV id=3Dyui_3_16_0_1_1425815565626_10468><BR></DIV>
<DIV id=3Dyui_3_16_0_1_1425815565626_10467 dir=3Dltr>Jack<BR></DIV>
<DIV id=3Dyui_3_16_0_1_1425815565626_10363><SPAN></SPAN></DIV><BR>
<DIV id=3Dyui_3_16_0_1_1425815565626_10335=20
style=3D"FONT-SIZE: 16px; FONT-FAMILY: HelveticaNeue, Helvetica Neue, =
Helvetica, Arial, Lucida Grande, sans-serif">
<DIV id=3Dyui_3_16_0_1_1425815565626_10334=20
style=3D"FONT-SIZE: 16px; FONT-FAMILY: HelveticaNeue, Helvetica Neue, =
Helvetica, Arial, Lucida Grande, sans-serif">
<DIV id=3Dyui_3_16_0_1_1425815565626_10333 dir=3Dltr>
<HR SIZE=3D1>
<SPAN id=3Dyui_3_16_0_1_1425815565626_10466=20
style=3D"FONT-SIZE: small; FONT-FAMILY: Arial" size=3D"2" face=3D"Arial" =

data-mce-style=3D"font-family: Arial; font-size: small;"><B><SPAN=20
style=3D"FONT-WEIGHT: bold">From:</SPAN></B> Van Mulders Marcel via Fot=20
&lt;[email-masked]&gt;<BR><B><SPAN style=3D"FONT-WEIGHT: =
bold">To:</SPAN></B>=20
[email-masked] <BR><B><SPAN style=3D"FONT-WEIGHT: =
bold">Sent:</SPAN></B>=20
Sunday, March 8, 2015 5:35 PM<BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> [Fot] TR4A front=20
suspension.<BR></SPAN></DIV>
<DIV id=3Dyui_3_16_0_1_1425815565626_10340 class=3Dy_msg_container><BR>
<DIV id=3Dyiv2435760872>
<DIV id=3Dyui_3_16_0_1_1425815565626_10339>
<DIV id=3Dyui_3_16_0_1_1425815565626_10338><SPAN=20
id=3Dyui_3_16_0_1_1425815565626_10337 =
class=3Dyiv2435760872733024020-08032015><SPAN=20
id=3Dyui_3_16_0_1_1425815565626_10336 style=3D"FONT-SIZE: small; =
FONT-FAMILY: Arial"=20
size=3D"2" face=3D"Arial" data-mce-style=3D"font-family: Arial; =
font-size: small;">In=20
June&nbsp;2014 I bought Bob Kramer's TR4A racecar after I crashed my TR3 =
at the=20
Zandvoort circuit (The Netherlands). It's a great car and it will get=20
better.&nbsp;Of my TR3,&nbsp;I&nbsp;only kept the engine and overdrive=20
dogbox&nbsp; Overhauling the front suspension, I found that the lower =
trunnion=20
was moving on the bolt instead of the bushed lower wishbones : the =
distance=20
pieces&nbsp;in the wishbones where shorter than original, so the =
trunnion was=20
not clamped by these distance pieces&nbsp;when fastening the bolt. =
Correcting=20
this, the upright has less play now, only a little in the =
trunnion,&nbsp;and=20
this upright with balljoint can't be forced anymore between the outer =
ends of=20
the upper wihbones, the balljoint is 1/2" too far to the =
rear.&nbsp;Turning the=20
upper wishbones to the rear (by moving the fulcrum pin)&nbsp;isn't a =
good=20
option, because binding will occur. I've drilled new holes for the =
brackets for=20
the inner ends of the lower wishbones : the suspension is moving without =
any=20
binding now but I don't know&nbsp;if I will leave it like that.&nbsp;I =
wonder if=20
something is wrong with the uprights? (less than&nbsp;3=B0 caster?) If I =
measure=20
the caster, I find 2.2=B0 on both sides, but probably&nbsp;that isn't =
proving=20
anything. The chassis is as new, no damage. Any idea's=20
someone?</SPAN></SPAN></DIV>
<DIV id=3Dyui_3_16_0_1_1425815565626_10343><SPAN=20
id=3Dyui_3_16_0_1_1425815565626_10342 =
class=3Dyiv2435760872733024020-08032015><SPAN=20
id=3Dyui_3_16_0_1_1425815565626_10341 style=3D"FONT-SIZE: small; =
FONT-FAMILY: Arial"=20
size=3D"2" face=3D"Arial"=20
data-mce-style=3D"font-family: Arial; font-size: small;">Another =
question : trying=20
to get at zero bump steer, the best I&nbsp;get at by moving the steering =

rack&nbsp;is a J : the wheels are&nbsp;toeing in when lowered more than =
3 cm=20
below ride height (minimal to 5cm, then more and more toe in). Bending =
the=20
steering arms to the outside, almost touching the brake disks now, has=20
straightened the J a little.&nbsp; Is it possible to eliminate the bump =
steer=20
completely, or&nbsp;have we(TR4A-TR6)&nbsp;to accept some bump steer in =
the=20
least important part of the suspension travel?</SPAN></SPAN></DIV>
<DIV id=3Dyui_3_16_0_1_1425815565626_10407><SPAN=20
class=3Dyiv2435760872733024020-08032015><SPAN=20
style=3D"FONT-SIZE: small; FONT-FAMILY: Arial" size=3D"2" face=3D"Arial" =

data-mce-style=3D"font-family: Arial; font-size: =
small;">Marcel.</SPAN></SPAN></DIV></DIV></DIV><BR>______________________=
_________________________<BR><A=20
href=3D"mailto:[email-masked]" =
target=3D_blank>[email-masked]</A><BR>
<DIV><BR></DIV><A href=3D"http://www.fot-racing.com/"=20
target=3D_blank>http://www.fot-racing.com</A><BR>
<DIV><BR></DIV>Donate: <A href=3D"http://www.team.net/donate.html"=20
target=3D_blank>http://www.team.net/donate.html</A><BR>Archive: <A=20
href=3D"http://www.team.net/archive"=20
target=3D_blank>http://www.team.net/archive</A><BR>Forums: <A=20
href=3D"http://www.team.net/forums"=20
target=3D_blank>http://www.team.net/forums</A><BR>Unsubscribe/Manage: <A =

href=3D"http://autox.team.net/mailman/options/fot/[email-masked]"=
=20
target=3D_blank>http://autox.team.net/mailman/options/fot/jwheeler1947@ya=
hoo.com</A><BR>
<DIV><BR></DIV><BR>
<DIV><BR></DIV><BR></DIV></DIV></DIV></DIV><BR>__________________________=
_____________________<BR>[email-masked]<BR>
<DIV><BR></DIV>http://www.fot-racing.com<BR>
<DIV><BR></DIV>Donate: http://www.team.net/donate.html<BR>Archive:=20
http://www.team.net/forums<BR>Unsubscribe/Manage:=20
http://autox.team.net/mailman/options/fot/[email-masked]<BR>
<DIV><BR></DIV><BR></DIV>
<DIV><BR></DIV></DIV></BODY></HTML>

------=_NextPart_000_0000_01D05F35.5B4CA740--

--===============3075944579113849421==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

--===============3075944579113849421==--