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One tip I'll add: It is very easy to bend the pump plunger. Rotate the
pump cam so that the lobe is away from the pump. Then use a piece of fine
(~28AWG) wire or very stout thread to pull the pump into the fully
compressed position (to clear the lobe) before trying to mate the gbx and
OD. After the units are mated sufficiently to ensure that the pump is
clear of the cam, release the pump. Bob's your uncle.
jim
On Sat, Sep 23, 2023 at 6:42=E2=80=AFAM yellow04 via Fot <fot@autox.team.ne=
t> wrote:
> Regarding the installation of the OD unit to the gearbox...
>
> It sounds like a lot of people have bent or broken adapter plates trying
> to get everything aligned and back together. When drawing the OD unit
> home by tightening equally the nuts on the two long studs, if everything
> is aligned properly at no point does the unit get hung up. If you
> experience any binding, especially in the last inch +/- 1/2 inch, STOP.
> Either the splines are not perfectly aligned, or you are fouling the
> pump plunger. Evenly back off the two nuts, remove the OD unit and start
> again. Failure to do this will bend or break the adapter plate, or if
> you are hanging up on the oil pump, you will bend the plunger shaft.
>
> For years I followed the instructions out there on installing the OD
> unit to the gearbox, install the springs on the sliding member, then
> offer up the OD unit. Some like to do it with the gearbox vertical, some
> prefer horizontal. Both methods can be a huge source of frustration, as
> the springs hold the OD unit pretty far from the adapter plate. As Mike
> Hado point out, once the springs are under pressure, they are locking
> the cone clutch in place on the annulus. One would think that is a good
> thing, you have aligned the splines using a dummy mainshaft, not moved
> anything, in theory it should just slide right home. Well, several folks
> here have posted, more often than not, it doesn't.
>
> Once Tim Hutchisen turned me on to the process I described on my
> original post, aligning everything with no springs installed then
> stuffing the springs into place, mating the OD unit to the gearbox
> became pretty easy and frustration free. Sure, it's messy as you can't
> avoid get the sealant on your gloves/hands, but it works every time. One
> thing I didn't mention as I thought it was obvious, but this is done
> with the gearbox horizontal, on a gearbox stand or the bench.
>
> Henry Frye
>
> On 2023-09-21 17:47, M&M Hado wrote:
>
> > It's not just a matter of rotating the rear flange as you might think.
> > If the inside clutch face is against the annulus taper, both splines
> > will rotate together when the rear flange is turned. In order to get a
> > relative movement to re-align them, the clutch must be pulled away from
> > the annulus so the two can rotate separately until they are realigned.
> >
> > Mike Hado
> >
> > From: John Lye
> >
> > Henry says " you need to line up two sets of splines in the OD unit "
> >
> > This is very important, as I learned the hard way the first time that I
> > put
> > an OD back together. I thought that I had the splines line up, but in
> > fact,
> > I only had the first set lined up and snapped a plate tightening it
> > down.
> >
> > On Thu, 21 Sep 2023 07:29:34 -0400, yellow04 wrote:
> >
> > Joe,
> >
> > Assembling the OD unit back onto the gearbox is where the real fun is,
> > you need to line up two sets of splines in the OD unit, compress the 8
> > springs and make sure you don't foul the oil pump plunger on the cam.
> > Many ways to accomplish this, some are tedious, frustrating, and can
> > completely drive you crazy. The easiest way I have found is to safety
> > wire the pump plunger, install the pump drive cam and make sure it is
> > pointing away from the pump, apply the sealant to the gasket and place
> > in on the OD unit, align the splines in the OD unit, (a spare OD
> > mainshaft is really helpful with this) and offer up the OD unit to the
> > box. Slowly slide the unit on assuring everything is lined up until the
> > gasket is almost touching the adapter plate. Then, install the nuts and
> > washers on the long studs only a couple of turns. Then you slide the OD
> > unit backwards WITHOUT TURNING the rear flange until it hits the nuts.
> > Then you install the 8 springs in their correct position, (shorts go
> > inboard, longs go outboard) by stuffing them onto their posts on the
> > sliding member then levering the other end onto the nubs on the adapter
> > plate. Take a really good look to make sure you have all 8 springs
> > correctly installed, then tighten the nuts equally to draw the OD unit
> > home. Then install the 4 nuts and washers on the short studs, remove
> > the safety wire on the oil pump plunger, refill with oil and you are
> > good to go.
> _______________________________________________
> fot@autox.team.net
>
> http://www.fot-racing.com
>
> Donate: http://www.team.net/donate.html
> Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
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>
>
>
--=20
jim W4BEA
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Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div dir=3D"ltr">One tip I'll add:=C2=A0 It is very ea=
sy to bend the pump plunger.=C2=A0Rotate the pump cam=C2=A0so that the lobe=
is away from the pump.=C2=A0 Then use a piece of fine (~28AWG) wire or ver=
y stout thread to pull the pump into the fully compressed position (to clea=
r the=C2=A0lobe) before trying to mate the gbx and OD.=C2=A0 After the unit=
s are mated sufficiently to ensure that the pump is clear of the cam, relea=
se the pump.=C2=A0 Bob's your uncle.</div><div dir=3D"ltr"><br></div><d=
iv>jim</div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_=
attr">On Sat, Sep 23, 2023 at 6:42=E2=80=AFAM yellow04 via Fot <<a href=
=3D"mailto:fot@autox.team.net";>fot@autox.team.net</a>> wrote:<br></div><=
blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-l=
eft:1px solid rgb(204,204,204);padding-left:1ex">Regarding the installation=
of the OD unit to the gearbox...<br>
<br>
It sounds like a lot of people have bent or broken adapter plates trying <b=
r>
to get everything aligned and back together. When drawing the OD unit <br>
home by tightening equally the nuts on the two long studs, if everything <b=
r>
is aligned properly at no point does the unit get hung up. If you <br>
experience any binding, especially in the last inch +/- 1/2 inch, STOP. <br=
>
Either the splines are not perfectly aligned, or you are fouling the <br>
pump plunger. Evenly back off the two nuts, remove the OD unit and start <b=
r>
again. Failure to do this will bend or break the adapter plate, or if <br>
you are hanging up on the oil pump, you will bend the plunger shaft.<br>
<br>
For years I followed the instructions out there on installing the OD <br>
unit to the gearbox, install the springs on the sliding member, then <br>
offer up the OD unit. Some like to do it with the gearbox vertical, some <b=
r>
prefer horizontal. Both methods can be a huge source of frustration, as <br=
>
the springs hold the OD unit pretty far from the adapter plate. As Mike <br=
>
Hado point out, once the springs are under pressure, they are locking <br>
the cone clutch in place on the annulus. One would think that is a good <br=
>
thing, you have aligned the splines using a dummy mainshaft, not moved <br>
anything, in theory it should just slide right home. Well, several folks <b=
r>
here have posted, more often than not, it doesn't.<br>
<br>
Once Tim Hutchisen turned me on to the process I described on my <br>
original post, aligning everything with no springs installed then <br>
stuffing the springs into place, mating the OD unit to the gearbox <br>
became pretty easy and frustration free. Sure, it's messy as you can=
9;t <br>
avoid get the sealant on your gloves/hands, but it works every time. One <b=
r>
thing I didn't mention as I thought it was obvious, but this is done <b=
r>
with the gearbox horizontal, on a gearbox stand or the bench.<br>
<br>
Henry Frye<br>
<br>
On 2023-09-21 17:47, M&M Hado wrote:<br>
<br>
> It's not just a matter of rotating the rear flange as you might th=
ink.=C2=A0 <br>
> If the inside clutch face is against the annulus taper, both splines <=
br>
> will rotate together when the rear flange is turned.=C2=A0 In order to=
get a <br>
> relative movement to re-align them, the clutch must be pulled away fro=
m <br>
> the annulus so the two can rotate separately until they are realigned.=
<br>
> <br>
> Mike Hado<br>
> <br>
> From:=C2=A0 John Lye<br>
> <br>
> Henry says " you need to line up two sets of splines in the OD un=
it "<br>
> <br>
> This is very important, as I learned the hard way the first time that =
I <br>
> put<br>
> an OD back together.=C2=A0 I thought that I had the splines line up, b=
ut in <br>
> fact,<br>
> I only had the first set lined up and snapped a plate tightening it <b=
r>
> down.<br>
> <br>
> On Thu, 21 Sep 2023 07:29:34 -0400, yellow04 wrote:<br>
> <br>
> Joe,<br>
> <br>
> Assembling the OD unit back onto the gearbox is where the real fun is,=
<br>
> you need to line up two sets of splines in the OD unit, compress the 8=
<br>
> springs and make sure you don't foul the oil pump plunger on the c=
am. <br>
> Many ways to accomplish this, some are tedious, frustrating, and can <=
br>
> completely drive you crazy. The easiest way I have found is to safety =
<br>
> wire the pump plunger, install the pump drive cam and make sure it is =
<br>
> pointing away from the pump, apply the sealant to the gasket and place=
<br>
> in on the OD unit, align the splines in the OD unit, (a spare OD <br>
> mainshaft is really helpful with this) and offer up the OD unit to the=
<br>
> box. Slowly slide the unit on assuring everything is lined up until th=
e <br>
> gasket is almost touching the adapter plate. Then, install the nuts an=
d <br>
> washers on the long studs only a couple of turns. Then you slide the O=
D <br>
> unit backwards WITHOUT TURNING the rear flange until it hits the nuts.=
<br>
> Then you install the 8 springs in their correct position, (shorts go <=
br>
> inboard, longs go outboard) by stuffing them onto their posts on the <=
br>
> sliding member then levering the other end onto the nubs on the adapte=
r <br>
> plate. Take a really good look to make sure you have all 8 springs <br=
>
> correctly installed, then tighten the nuts equally to draw the OD unit=
<br>
> home. Then install the 4 nuts and washers on the short studs, remove <=
br>
> the safety wire on the oil pump plunger, refill with oil and you are <=
br>
> good to go.<br>
_______________________________________________<br>
<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank">fot@autox.team.net<=
/a><br>
<br>
<a href=3D"http://www.fot-racing.com"; rel=3D"noreferrer" target=3D"_blank">=
http://www.fot-racing.com</a><br>
<br>
et=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://autox.team.net/archive"; rel=3D"noreferrer" targe=
t=3D"_blank">http://autox.team.net/archive</a> <a href=3D"http://www.team.n=
et/pipermail/fotUnsubscribe/Manage" rel=3D"noreferrer" target=3D"_blank">ht=
tp://www.team.net/pipermail/fot<br>
t/jhassall@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.tea=
m.net/mailman/options/fot/jhassall@gmail.com</a><br>
<br>
<br>
</blockquote></div><br clear=3D"all"><div><br></div><span class=3D"gmail_si=
gnature_prefix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature"><d=
iv dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D=
"ltr"><div><div><span style=3D"color:rgb(0,0,0);font-family:arial,helvetica=
,sans-serif;background-color:rgb(250,250,251)">jim=C2=A0 W4BEA</span></div>=
</div></div></div></div></div></div></div></div></div></div>
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
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