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I rebuilt my single rail gearbox and replaced the clutch 10,000 miles ago b=
ut I have been experiencing clutch judder for some time now. I was going to=
replace the clutch and resurface the flywheel later this year but recently=
I started the engine but when I came to put it in gear I found that the cl=
utch pedal was absolutely solid... it would not move.=C2=A0I removed the en=
gine and gearbox and found the release bearing carrier =C2=A0had jammed on =
the sleeve that carries it. =C2=A0It appears that the carrier had traveled =
too far along the sleeve and cocked over =C2=A0at an angle and jammed.on th=
e sleeve. Why this happened I don't know because I am using the correct clu=
tch master cylinder and slave cylinder so the movement of the rod that is a=
ttached to the operating level should be correct and should not move the be=
aring carrier too far along the sleeve.I noticed that the sleeve could be i=
ncreased in length by a good 1/4 ins since it doesn't reach to the end of t=
he release bearing carrier and this would presumably stop the carrier from =
cocking on the sleeve. I don't understand why the sleeve is shorter in leng=
th than it could be... there doesn't seem to be any problem if the sleeve w=
as made longer. Has anybody done this ?How good a fit should the release be=
aring carrier be on the sleeve? I can wriggle mine about when it is fully b=
ack on the sleeve but the movement doesn't feel to be excessive to me.=C2=
=A0The clutch is self adjusting in that the release bearing is always in co=
ntact with pressure plate diaphragm finger. =C2=A0With only 10,000 miles on=
the clutch I don't see how the reduced the thickness of the driven plate w=
ould be sufficient to move the release bearing carrier a significant amount=
on the sleeve or that the diaphragm fingers have bent a little.=C2=A0I wil=
l check the crankshaft end float to see it that is the problem.Any thoughts=
on this issue would be welcomeStuart A Greenwood
San Diego
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<html><head></head><body><div style=3D"color:#000; background-color:#fff; f=
ont-family:times new roman, new york, times, serif;font-size:14px"><div id=
=3D"yui_3_16_0_ym19_1_1471470148955_4523" dir=3D"ltr"><span id=3D"yui_3_16_=
0_ym19_1_1471470148955_4541">I rebuilt my single rail gearbox and replaced =
the clutch 10,000 miles ago but I have been experiencing clutch judder for =
some time now. I was going to replace the clutch and resurface the flywheel=
later this year but recently I started the engine but when I came to put i=
t in gear I found that the clutch pedal was absolutely solid... it would no=
t move. </span></div><div id=3D"yui_3_16_0_ym19_1_1471470148955_4523" =
dir=3D"ltr"><span id=3D"yui_3_16_0_ym19_1_1471470148955_4715">I removed the=
engine and gearbox and found the release bearing carrier had jammed =
on the sleeve that carries it. It appears that the carrier had travel=
ed too far along the sleeve and cocked over at an angle and jammed.on=
the sleeve. Why this happened I don't know because I am using the correct =
clutch master cylinder and slave cylinder so the movement of the rod that i=
s attached to the operating level should be correct and should not move the=
bearing carrier too far along the sleeve.</span></div><div id=3D"yui_3_16_=
0_ym19_1_1471470148955_4523" dir=3D"ltr"><span id=3D"yui_3_16_0_ym19_1_1471=
470148955_4936">I noticed that the sleeve could be increased in length by a=
good 1/4 ins since it doesn't reach to the end of the release bearing carr=
ier and this would presumably stop the carrier from cocking on the sleeve. =
I don't understand why the sleeve is shorter in length than it could be... =
there doesn't seem to be any problem if the sleeve was made longer. Has any=
body done this ?</span></div><div id=3D"yui_3_16_0_ym19_1_1471470148955_452=
3" dir=3D"ltr"><span id=3D"yui_3_16_0_ym19_1_1471470148955_5042">How good a=
fit should the release bearing carrier be on the sleeve? I can wriggle min=
e about when it is fully back on the sleeve but the movement doesn't feel t=
o be excessive to me. </span></div><div id=3D"yui_3_16_0_ym19_1_147147=
0148955_4523" dir=3D"ltr">The clutch is self adjusting in that the release =
bearing is always in contact with pressure plate diaphragm finger. Wi=
th only 10,000 miles on the clutch I don't see how the reduced the thicknes=
s of the driven plate would be sufficient to move the release bearing carri=
er a significant amount on the sleeve or that the diaphragm fingers have be=
nt a little. </div><div id=3D"yui_3_16_0_ym19_1_1471470148955_4523" di=
r=3D"ltr">I will check the crankshaft end float to see it that is the probl=
em.</div><div id=3D"yui_3_16_0_ym19_1_1471470148955_4523" dir=3D"ltr">Any t=
houghts on this issue would be welcome</div><div id=3D"yui_3_16_0_ym19_1_14=
71470148955_4523" dir=3D"ltr">Stuart A Greenwood<br></div><div id=3D"yui_3_=
16_0_ym19_1_1471470148955_4523" dir=3D"ltr">San Diego</div></div></body></h=
tml>
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** triumphs@autox.team.net **
Archive: http://www.team.net/archive
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