Subject: Re: [Healeys] BJ8---clutch and "SS" aka--scuttle shake

From: Michael Salter <[email-masked]>
Date: Thu, 8 Jul 2021 09:15:00 -0400

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Tom,  as you suspect I would be suspicious of the pressure plate. It would
be wise to take a look ...
My experience regarding scuttle shake is that "shaving" the tyres makes a
huge difference.
https://www.netbug.net/blogmichael/2015/09/29/tire-truing-a-home-solution/

M

On Thu., Jul. 8, 2021, 9:00 a.m. Tom Felts, <[email-masked]> wrote:

> Recently (maybe 6 months ago) I installed a new clutch disc and TOB.  (PP
> looked good so didn't add a new one)  Shifts great but when starting the
> car even with it out of gear, it "groans" a second or so when the engine
> starts but goes away and I would only hear it at times when I down
> shifted.  Once hot I never heard it.  Then--------I took a 600 mile trip
> over the last two days.  I began to hear it more and at different
> times---Pushing the clutch in, starting the car and downshifting.  Several
> times I heard what sounded like a "ping" when I pressed the cutch pedal.
>
> I have a hunch it is the PP-----could be one of the fingers got bent when
> installing??  Otherwise, I have no idea.
>
> Second------for the years I have had this car, I have hated the dreaded
> scuttle shake.  I have balanced all wheels--even added the scuttle shake
> "mod"  (cross beams on the inner body, behind the engine) and had the rear
> drums balanced locally.  All to no avail-----between 55 and 65 there is
> comes again!!  The drive was wonderful all the while as long as I drove
> slower or faster than these speeds.
>
> What to do------what to do???
>
> Any thoughts would be appreciated.
> Tom
>
>
>
>
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<div dir=3D"auto">Tom,=C2=A0 as you suspect I would be suspicious of the pr=
essure plate. It would be wise to take a look ...=C2=A0<div dir=3D"auto">My=
 experience regarding scuttle shake is that &quot;shaving&quot; the tyres m=
akes a huge difference.=C2=A0</div><div dir=3D"auto"><a href=3D"https://www=
.netbug.net/blogmichael/2015/09/29/tire-truing-a-home-solution/">https://ww=
w.netbug.net/blogmichael/2015/09/29/tire-truing-a-home-solution/</a><br></d=
iv><div dir=3D"auto"><br></div><div dir=3D"auto">M</div></div><br><div clas=
s=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu., Jul. 8, 20=
21, 9:00 a.m. Tom Felts, &lt;<a href=3D"mailto:[email-masked]">tom=
[email-masked]</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quo=
te" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"=
><div><div>Recently (maybe 6 months ago) I installed a new clutch disc and =
TOB.=C2=A0 (PP looked good so didn&#39;t add a new one)=C2=A0 Shifts great =
but when starting the car even with it out of gear, it &quot;groans&quot; a=
 second or so when the engine starts but goes away and I would only hear it=
 at times when I down shifted.=C2=A0 Once hot I never heard it.=C2=A0 Then-=
-------I took a 600 mile trip over the last two days.=C2=A0 I began to hear=
 it more and at different times---Pushing the clutch in, starting the car a=
nd downshifting.=C2=A0 Several times I heard what sounded like a &quot;ping=
&quot; when I pressed the cutch pedal.</div><div><br></div><div>I have a hu=
nch it is the PP-----could be one of the fingers got bent when installing??=
=C2=A0 Otherwise, I have no idea.</div><div><br></div><div>Second------for =
the years I have had this car, I have hated the dreaded scuttle shake.=C2=
=A0 I have balanced all wheels--even added the scuttle shake &quot;mod&quot=
;=C2=A0 (cross beams on the inner body, behind the engine) and had the rear=
 drums balanced locally.=C2=A0 All to no avail-----between 55 and 65 there =
is comes again!!=C2=A0 The drive was wonderful all the while as long as I d=
rove slower or faster than these speeds.</div><div><br></div><div>What to d=
o------what to do???</div><div><br></div><div>Any thoughts would be appreci=
ated.</div><div>Tom</div><div><br></div><div><br></div><div><br></div><div>=
<br></div></div>_______________________________________________<br>
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From: "Team.net" <[email-masked]>
Date: Thu, 8 Jul 2021 09:25:49 -0400

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Agreed, I had the tires shaved and the rear brake drums balanced - now no sc=
uttle shake.

> On Jul 8, 2021, at 09:16, Michael Salter <[email-masked]> wrote:
>=20
> =EF=BB=BF
> Tom,  as you suspect I would be suspicious of the pressure plate. It would=
 be wise to take a look ...=20
> My experience regarding scuttle shake is that "shaving" the tyres makes a h=
uge difference.=20
> https://www.netbug.net/blogmichael/2015/09/29/tire-truing-a-home-solution/=

>=20
> M
>=20
>> On Thu., Jul. 8, 2021, 9:00 a.m. Tom Felts, <[email-masked]> wro=
te:
>> Recently (maybe 6 months ago) I installed a new clutch disc and TOB.  (PP=
 looked good so didn't add a new one)  Shifts great but when starting the ca=
r even with it out of gear, it "groans" a second or so when the engine start=
s but goes away and I would only hear it at times when I down shifted.  Once=
 hot I never heard it.  Then--------I took a 600 mile trip over the last two=
 days.  I began to hear it more and at different times---Pushing the clutch i=
n, starting the car and downshifting.  Several times I heard what sounded li=
ke a "ping" when I pressed the cutch pedal.
>>=20
>> I have a hunch it is the PP-----could be one of the fingers got bent when=
>>=20
>> Second------for the years I have had this car, I have hated the dreaded s=
cuttle shake.  I have balanced all wheels--even added the scuttle shake "mod=
"  (cross beams on the inner body, behind the engine) and had the rear drums=
 balanced locally.  All to no avail-----between 55 and 65 there is comes aga=
in!!  The drive was wonderful all the while as long as I drove slower or fas=
ter than these speeds.
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>> Archive: http://www.team.net/pipermail/healeys http://autox.team.net/arch=
ive
>>=20
>>=20
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/michael=
[email-masked]
>>=20
>=20
> Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archi=
ve
>=20
>=20
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[email-masked]
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div dir=3D"ltr">Agreed, I had the tires sh=
aved and the rear brake drums balanced - now no scuttle shake.</div><div dir=
=3D"ltr"><br><blockquote type=3D"cite">On Jul 8, 2021, at 09:16, Michael Sal=
ter &lt;[email-masked]&gt; wrote:<br><br></blockquote></div><blockq=
uote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF<div dir=3D"auto">Tom,&nbsp; as=
 you suspect I would be suspicious of the pressure plate. It would be wise t=
o take a look ...&nbsp;<div dir=3D"auto">My experience regarding scuttle sha=
ke is that "shaving" the tyres makes a huge difference.&nbsp;</div><div dir=3D=
"auto"><a href=3D"https://www.netbug.net/blogmichael/2015/09/29/tire-truing-=
a-home-solution/">https://www.netbug.net/blogmichael/2015/09/29/tire-truing-=
a-home-solution/</a><br></div><div dir=3D"auto"><br></div><div dir=3D"auto">=
M</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_=
attr">On Thu., Jul. 8, 2021, 9:00 a.m. Tom Felts, &lt;<a href=3D"mailto:tomf=
[email-masked]">[email-masked]</a>&gt; wrote:<br></div><blockq=
uote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc s=
olid;padding-left:1ex"><div><div>Recently (maybe 6 months ago) I installed a=
 new clutch disc and TOB.&nbsp; (PP looked good so didn't add a new one)&nbs=
p; Shifts great but when starting the car even with it out of gear, it "groa=
ns" a second or so when the engine starts but goes away and I would only hea=
r it at times when I down shifted.&nbsp; Once hot I never heard it.&nbsp; Th=
en--------I took a 600 mile trip over the last two days.&nbsp; I began to he=
ar it more and at different times---Pushing the clutch in, starting the car a=
nd downshifting.&nbsp; Several times I heard what sounded like a "ping" when=
 I pressed the cutch pedal.</div><div><br></div><div>I have a hunch it is th=
e PP-----could be one of the fingers got bent when installing??&nbsp; Otherw=
ise, I have no idea.</div><div><br></div><div>Second------for the years I ha=
ve had this car, I have hated the dreaded scuttle shake.&nbsp; I have balanc=
ed all wheels--even added the scuttle shake "mod"&nbsp; (cross beams on the i=
nner body, behind the engine) and had the rear drums balanced locally.&nbsp;=
 All to no avail-----between 55 and 65 there is comes again!!&nbsp; The driv=
e was wonderful all the while as long as I drove slower or faster than these=
 speeds.</div><div><br></div><div>What to do------what to do???</div><div><b=
r></div><div>Any thoughts would be appreciated.</div><div>Tom</div><div><br>=
</div><div><br></div><div><br></div><div><br></div></div>___________________=
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From: john harper <[email-masked]>
Date: Thu, 8 Jul 2021 16:14:21 +0100

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Tom

Have you checked the prop shaft?

Could it be loose, worn where the needle bearings are, or out of Phase.

Regards

On Thu, 8 Jul 2021 at 14:00, Tom Felts <[email-masked]> wrote:

> http://autox.team.net/mailman/options/healeys/[email-masked]
>
>

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<div dir=3D"ltr">Tom<div><br></div><div>Have you checked the prop shaft?</d=
iv><div><br></div><div>Could it be loose, worn where the needle bearings ar=
e, or out of Phase.</div><div><br></div><div>Regards</div></div><br><div cl=
ass=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, 8 Jul 202=
1 at 14:00, Tom Felts &lt;<a href=3D"mailto:[email-masked]">tomfel=
[email-masked]</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote"=
 style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);p=
adding-left:1ex"><div><div>Recently (maybe 6 months ago) I installed a new =
clutch disc and TOB.=C2=A0 (PP looked good so didn&#39;t add a new one)=C2=
=A0 Shifts great but when starting the car even with it out of gear, it &qu=
ot;groans&quot; a second or so when the engine starts but goes away and I w=
ould only hear it at times when I down shifted.=C2=A0 Once hot I never hear=
d it.=C2=A0 Then--------I took a 600 mile trip over the last two days.=C2=
=A0 I began to hear it more and at different times---Pushing the clutch in,=
 starting the car and downshifting.=C2=A0 Several times I heard what sounde=
d like a &quot;ping&quot; when I pressed the cutch pedal.</div><div><br></d=
iv><div>I have a hunch it is the PP-----could be one of the fingers got ben=
t when installing??=C2=A0 Otherwise, I have no idea.</div><div><br></div><d=
iv>Second------for the years I have had this car, I have hated the dreaded =
scuttle shake.=C2=A0 I have balanced all wheels--even added the scuttle sha=
ke &quot;mod&quot;=C2=A0 (cross beams on the inner body, behind the engine)=
 and had the rear drums balanced locally.=C2=A0 All to no avail-----between=
 55 and 65 there is comes again!!=C2=A0 The drive was wonderful all the whi=
le as long as I drove slower or faster than these speeds.</div><div><br></d=
iv><div>What to do------what to do???</div><div><br></div><div>Any thoughts=
 would be appreciated.</div><div>Tom</div><div><br></div><div><br></div><di=
v><br></div><div><br></div></div>__________________________________________=
_____<br>
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From: Bob Spidell <[email-masked]>
Date: Thu, 8 Jul 2021 08:34:40 -0700

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I've haven't been able to drive it a lot because I have brake issues and 
got kicked out of my house and have to move quickly, but new (MWS) 
wheels and tires seems to have eliminated scuttle shake in my BN2.

I'd be hard-pressed to believe a PP 'finger' got bent, that's some 
pretty strong steel (unless, like a lot of things, the new PPs have been 
cheapened to increase profit and executive bonuses). I have no clue, but 
suspect you'll have to pull the gearbox to find out what's going on.

Afterthought: I don't recall which Healey you have, but if it's a 4-cyl 
or one of the earlier 6s they have a coil spring PP instead of the later 
diaphragm type; if so it's possible one of those springs is broken. My 
BJ8 once had a disk with a busted vibration damper spring--it that's 
what they're called--which caused some judder when engaging.

Bob

On 7/8/2021 6:00 AM, Tom Felts wrote:
> Recently (maybe 6 months ago) I installed a new clutch disc and TOB.  
> (PP looked good so didn't add a new one)  Shifts great but when 
> starting the car even with it out of gear, it "groans" a second or so 
> when the engine starts but goes away and I would only hear it at times 
> when I down shifted.  Once hot I never heard it.  Then--------I took a 
> 600 mile trip over the last two days.  I began to hear it more and at 
> different times---Pushing the clutch in, starting the car and 
> downshifting.  Several times I heard what sounded like a "ping" when I 
> pressed the cutch pedal.
>
> I have a hunch it is the PP-----could be one of the fingers got bent 
> when installing??  Otherwise, I have no idea.
>
> Second------for the years I have had this car, I have hated the 
> dreaded scuttle shake.  I have balanced all wheels--even added the 
> scuttle shake "mod"  (cross beams on the inner body, behind the 
> engine) and had the rear drums balanced locally.  All to no 
> avail-----between 55 and 65 there is comes again!!  The drive was 
> wonderful all the while as long as I drove slower or faster than these 
> speeds.
>

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    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  </head>
  <body>
    I've haven't been able to drive it a lot because I have brake issues
    and got kicked out of my house and have to move quickly, but new
    (MWS) wheels and tires seems to have eliminated scuttle shake in my
    BN2.<br>
    <br>
    I'd be hard-pressed to believe a PP 'finger' got bent, that's some
    pretty strong steel (unless, like a lot of things, the new PPs have
    been cheapened to increase profit and executive bonuses). I have no
    clue, but suspect you'll have to pull the gearbox to find out what's
    going on.<br>
    <br>
    Afterthought: I don't recall which Healey you have, but if it's a
    4-cyl or one of the earlier 6s they have a coil spring PP instead of
    the later diaphragm type; if so it's possible one of those springs
    is broken. My BJ8 once had a disk with a busted vibration damper
    spring--it that's what they're called--which caused some judder when
    engaging.<br>
    <br>
    Bob<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 7/8/2021 6:00 AM, Tom Felts wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:[email-masked]">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <style>body {height: 100%; color:#000000; font-size:12pt; font-family:arial, helvetica, sans-serif;}</style>
      <div>Recently (maybe 6 months ago) I installed a new clutch disc
        and TOB.  (PP looked good so didn't add a new one)  Shifts great
        but when starting the car even with it out of gear, it "groans"
        a second or so when the engine starts but goes away and I would
        only hear it at times when I down shifted.  Once hot I never
        heard it.  Then--------I took a 600 mile trip over the last two
        days.  I began to hear it more and at different times---Pushing
        the clutch in, starting the car and downshifting.  Several times
        I heard what sounded like a "ping" when I pressed the cutch
        pedal.</div>
      <div><br data-mce-bogus="1">
      </div>
      <div>I have a hunch it is the PP-----could be one of the fingers
        got bent when installing??  Otherwise, I have no idea.</div>
      <div><br data-mce-bogus="1">
      </div>
      <div>Second------for the years I have had this car, I have hated
        the dreaded scuttle shake.  I have balanced all wheels--even
        added the scuttle shake "mod"  (cross beams on the inner body,
        behind the engine) and had the rear drums balanced locally.  All
        to no avail-----between 55 and 65 there is comes again!!  The
        drive was wonderful all the while as long as I drove slower or
        faster than these speeds.</div>
      <div><br>
      </div>
      <div>What to do------what to do???</div>
      <div><br data-mce-bogus="1">
      </div>
      <div>Any thoughts would be appreciated.</div>
      <div>Tom</div>
      <div><br data-mce-bogus="1">
      </div>
      <div><br data-mce-bogus="1">
      </div>
      <br>
    </blockquote>
    <br>
  </body>
</html>

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From: Bob Spidell <[email-masked]>
Date: Thu, 8 Jul 2021 08:36:53 -0700

This is a multi-part message in MIME format.
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re: '... My experience regarding scuttle shake is that "shaving" the 
tyres makes a huge difference'

It also voids the tyres' warranty (at least for Vredesteins).

bs

On 7/8/2021 6:15 AM, Michael Salter wrote:
> Tom,  as you suspect I would be suspicious of the pressure plate. It 
> would be wise to take a look ...
> My experience regarding scuttle shake is that "shaving" the tyres 
> makes a huge difference.
> <https://www.netbug.net/blogmichael/2015/09/29/tire-truing-a-home-solution/>
>
> M
>
> On Thu., Jul. 8, 2021, 9:00 a.m. Tom Felts, <[email-masked] 
>
>     Recently (maybe 6 months ago) I installed a new clutch disc and
>     TOB.  (PP looked good so didn't add a new one) Shifts great but
>     when starting the car even with it out of gear, it "groans" a
>     second or so when the engine starts but goes away and I would only
>     hear it at times when I down shifted.  Once hot I never heard it. 
>     Then--------I took a 600 mile trip over the last two days.  I
>     began to hear it more and at different times---Pushing the clutch
>     in, starting the car and downshifting.  Several times I heard what
>     sounded like a "ping" when I pressed the cutch pedal.
>
>     I have a hunch it is the PP-----could be one of the fingers got
>     bent when installing??  Otherwise, I have no idea.
>
>     wonderful all the while as long as I drove slower or faster than
>     these speeds.
>

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    re: '... My experience regarding scuttle shake is that "shaving" the
    tyres makes a huge difference'<br>
    <br>
    It also voids the tyres' warranty (at least for Vredesteins).<br>
    <br>
    bs<br>
    <br>
    <div class="moz-cite-prefix">On 7/8/2021 6:15 AM, Michael Salter
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:[email-masked]">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <div dir="auto">Tom,  as you suspect I would be suspicious of the
        pressure plate. It would be wise to take a look ... 
        <div dir="auto">My experience regarding scuttle shake is that
          "shaving" the tyres makes a huge difference. </div>
        <div dir="auto"><a
href="https://www.netbug.net/blogmichael/2015/09/29/tire-truing-a-home-solution/"
            moz-do-not-send="true">https://www.netbug.net/blogmichael/2015/09/29/tire-truing-a-home-solution/</a><br>
        </div>
        <div dir="auto"><br>
        </div>
        <div dir="auto">M</div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">On Thu., Jul. 8, 2021, 9:00
          a.m. Tom Felts, &lt;<a href="mailto:[email-masked]"
            moz-do-not-send="true">[email-masked]</a>&gt;
          wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0 0 0
          .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div>
            <div>Recently (maybe 6 months ago) I installed a new clutch
              disc and TOB.  (PP looked good so didn't add a new one) 
              Shifts great but when starting the car even with it out of
              gear, it "groans" a second or so when the engine starts
              but goes away and I would only hear it at times when I
              down shifted.  Once hot I never heard it.  Then--------I
              took a 600 mile trip over the last two days.  I began to
              hear it more and at different times---Pushing the clutch
              in, starting the car and downshifting.  Several times I
              heard what sounded like a "ping" when I pressed the cutch
              pedal.</div>
            <div><br>
            </div>
            <div>I have a hunch it is the PP-----could be one of the
              fingers got bent when installing??  Otherwise, I have no
              idea.</div>
            <div><br>
            </div>
            <div>Second------for the years I have had this car, I have
              hated the dreaded scuttle shake.  I have balanced all
              wheels--even added the scuttle shake "mod"  (cross beams
              on the inner body, behind the engine) and had the rear
              drums balanced locally.  All to no avail-----between 55
              and 65 there is comes again!!  The drive was wonderful all
              the while as long as I drove slower or faster than these
              speeds.</div>
            <div><br>
            </div>
            <div>What to do------what to do???</div>
            <div><br>
            </div>
            <div>Any thoughts would be appreciated.</div>
            <div>Tom</div>
            <div><br>
            </div>
            <div><br>
            </div>
            <div><br>
            </div>
            <br>
          </div>
        </blockquote>
      </div>
    </blockquote>
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[email-masked]

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---

From: Alan Seigrist <[email-masked]>
Date: Fri, 9 Jul 2021 20:16:19 +0800

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Also scuttle shake at that speed often can be caused by a bouncing tire due
to worn shocks

On Thu, 8 Jul 2021 at 9:01 PM, Tom Felts <[email-masked]> wrote:

> http://autox.team.net/mailman/options/healeys/[email-masked]
>
>

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<div dir=3D"auto">Also scuttle shake at that speed often can be caused by a=
 bouncing tire due to worn shocks</div><div><br><div class=3D"gmail_quote">=
<div dir=3D"ltr" class=3D"gmail_attr">On Thu, 8 Jul 2021 at 9:01 PM, Tom Fe=
lts &lt;<a href=3D"mailto:[email-masked]">[email-masked]<=
/a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0=
 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>Recently (=
maybe 6 months ago) I installed a new clutch disc and TOB.=C2=A0 (PP looked=
 good so didn&#39;t add a new one)=C2=A0 Shifts great but when starting the=
 car even with it out of gear, it &quot;groans&quot; a second or so when th=
e engine starts but goes away and I would only hear it at times when I down=
 shifted.=C2=A0 Once hot I never heard it.=C2=A0 Then--------I took a 600 m=
ile trip over the last two days.=C2=A0 I began to hear it more and at diffe=
rent times---Pushing the clutch in, starting the car and downshifting.=C2=
=A0 Several times I heard what sounded like a &quot;ping&quot; when I press=
ed the cutch pedal.</div><div><br></div><div>I have a hunch it is the PP---=
--could be one of the fingers got bent when installing??=C2=A0 Otherwise, I=
 have no idea.</div><div><br></div><div>Second------for the years I have ha=
d this car, I have hated the dreaded scuttle shake.=C2=A0 I have balanced a=
ll wheels--even added the scuttle shake &quot;mod&quot;=C2=A0 (cross beams =
on the inner body, behind the engine) and had the rear drums balanced local=
ly.=C2=A0 All to no avail-----between 55 and 65 there is comes again!!=C2=
=A0 The drive was wonderful all the while as long as I drove slower or fast=
er than these speeds.</div><div><br></div><div>What to do------what to do??=
?</div><div><br></div><div>Any thoughts would be appreciated.</div><div>Tom=
</div><div><br></div><div><br></div><div><br></div><div><br></div></div>___=
____________________________________________<br>
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