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<p>My pilot bush didn't show much wear, but the input shaft did.<br>
</p>
<br>
<div class="moz-cite-prefix">On 12/12/2016 11:03 AM, BJ8Healeys
wrote:<br>
</div>
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Comic Sans
MS";color:#002060">Anticipating removing the gearbox
for rebuild of the overdrive (and to fix a clutch chattering
problem in reverse), I bought a new carbon release bearing
from Moss along with the new clutch in early 2014. When I
compared the old bearing with 80000+ miles on it with the
new one, the old one had worn only 0.1" off of the 0.9"
thickness.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Comic Sans
MS";color:#002060">I also never hold down the clutch
pedal except to shift gears. I didn't see any wear on the
old pilot bush (also with 80K+ miles) or input shaft of the
gearbox.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Comic Sans
MS";color:#002060"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Comic Sans
MS";color:#002060">Steve Byers</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Comic Sans
MS";color:#002060">HBJ8L/36666</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Comic Sans
MS";color:#002060">BJ8 Registry</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Comic Sans
MS";color:#002060">AHCA Delegate at Large</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Comic Sans
MS";color:#002060">Havelock, NC </span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Comic Sans
MS";color:#002060"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">
Healeys [<a class="moz-txt-link-freetext" href="mailto:healeys-bounces@autox.team.net">mailto:healeys-bounces@autox.team.net</a>] <b>On
Behalf Of </b>Bob Spidell<br>
<b>Sent:</b> Monday, December 12, 2016 10:25 AM<br>
<b>Cc:</b> healeys<br>
<b>Subject:</b> Re: [Healeys] Clutch-related noise<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif"">Michael
has a Toyota 5-speed. <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif"">Anyways,
my dad and I were discussing how to keep the graphite
disk-type TO 'bearing' from wearing as much. He
suggested putting a return spring from the slave
cylinder to the clutch fork, but I thought that would
increase pedal travel too much as the cylinder push rod
would have to travel farther to overcome the larger gap
between the bearing and the clutch cover. Note this is
theoretical, I decided not to do it; we reused a
graphite bearing with over 100K miles as it had plenty
'meat' on it (but I'm in the habit of putting the
gearbox in neutral at every stop--the downside being
possibly greater wear on the pilot bush and input shaft)<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif"">The
roller release bearing can be found here:<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif""><a
moz-do-not-send="true"
href="https://www.ahspares.co.uk/austin-healey/performance-parts/Clutch/RELEASE-BEARING-BALL-RACE.aspx">https://www.ahspares.co.uk/austin-healey/performance-parts/Clutch/RELEASE-BEARING-BALL-RACE.aspx</a><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif"">Cheers,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif"">Bob<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
</div>
<div class="MsoNormal" style="text-align:center"
align="center"><span
style="font-family:"Arial","sans-serif"">
<hr id="zwchr" align="center" size="2" width="100%"></span></div>
<div>
<p class="MsoNormal"><b><span
style="font-family:"Helvetica","sans-serif"">From:
</span></b><span
style="font-family:"Helvetica","sans-serif"">"Brian
Drab" <<a moz-do-not-send="true"
href="mailto:bgdrab@eastlink.ca">bgdrab@eastlink.ca</a>><br>
<b>To: </b>"Oudesluys" <<a moz-do-not-send="true"
href="mailto:coudesluijs@chello.nl">coudesluijs@chello.nl</a>>,
"healeys" <<a moz-do-not-send="true"
href="mailto:healeys@autox.team.net">healeys@autox.team.net</a>><br>
<b>Sent: </b>Sunday, December 11, 2016 9:14:27 PM<br>
<b>Subject: </b>Re: [Healeys] Clutch-related noise<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span
style="font-family:"Helvetica","sans-serif""><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:windowtext">Kees, I assume by clutch
bearing, you mean the clutch throw-out or release
bearing. On a BJ8, these have a solid carbon contact
surface and do not move other than in or out depending
on the pedal motion. I literally just replaced that
bearing on a BJ8. I do realize that there is much more
expensive throw out bearing that does utilize ball or
roller bearings but I have never actually seen one of
these. </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:windowtext">I know of no way to
increase the pedal travel on a BJ8. The pedal to master
cylinder is non adjustable and the slave cylinder to
clutch is also non adjustable. </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:windowtext">When I mentioned, in an
earlier post, the input shaft bearing of the
transmission - this shaft is at engine speed with the
clutch released, and motionless when the clutch pedal is
depressed, which allows one to select gears without
grinding them. Road speed has no influence on the
transmission input shaft. I had exactly this problem on
a vehicle (not a Healey) and that was the problem and
was solved by replacing that bearing. </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:windowtext">I certainly don’t know
if that is the problem in this case but, to me, it is
the only logical thing that is moving at engine speed
(not road speed) with the clutch released and the only
thing that would be motionless (relatively speaking)
when the clutch pedal is depressed.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:windowtext">Brian Drab</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-family:"Helvetica","sans-serif""><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span
style="font-family:"Helvetica","sans-serif""><o:p> </o:p></span></p>
</div>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
</div>
</div>
<div class="MsoNormal" style="text-align:center" align="center"><span
style="color:windowtext">
<hr style="color:#A0A0A0" align="center" noshade="noshade"
size="1" width="100%"></span></div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="color:windowtext">No virus found in this message.<br>
Checked by AVG - <a moz-do-not-send="true"
href="http://www.avg.com">www.avg.com</a><br>
Version: 2016.0.7924 / Virus Database: 4728/13580 - Release
Date: 12/12/16<o:p></o:p></span></p>
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