I have found that any misalignment of the engine and transmission will cause
this symptom. Sometimes the problem is found to be too tall an engine mount,
sometimes the tail of the transmission too low. The transmission input shaft
and the main line of the engine crankshaft need to be in one straight line -
not up/down nor left/right.
I can't directly speak for the TC, as I don't remember, but the TD
transmission has a yoke hanging from the bottom of the transmission case.
This has a threaded rod on it which drops through the supporting
cross-member and is bolted to it. I've seen one break, and it's not a pretty
sight, but if yours is simply too tight or too loose, this could cause the
shudder.
This is, of course, also a possible symptom if the clutch is not in tip-top
shape. Other causes could be some roughness on the clutch or flywheel
facings or too weak or too strong springs in the clutch disk.
It can be a frustrating problem to solve, but try the things I've suggested.
It's also possible that is any of these parts are new, they will bed in with
time and use. If they are not new, it is likely an
engine/clutch/transmission alignment problem. Perhaps sagging mounts?
Cheers,
Lew Palmer
-----Original Message-----
From: owner-mg-t@autox.team.net [mailto:owner-mg-t@autox.team.net] On Behalf
Of tnewton
Sent: Tuesday, August 31, 2004 5:01 PM
To: mg
Subject: TC engine shudder
Hi All
I have a problem that some one may be able to help diagnose. When reversing,
the engine seriously shudders until the clutch has fully engaged. This is on
flat surfaces and regardless of high or low engine revs.
I have adjusted the clutch per spec. and have no problem with forward
motion,
a smooth take off with no grabbing, slip or shudder. About 2 inches of pedal
travel before the clutch engages. I have tightened the front engine mounts
slightly (I don't know how tight they should be, or how compressed the
rebound
rubber should be??? The rubbers appear to be in good condition and are not
distorted ) and checked to see that the rear mounts are also tight (appears
to
be no ability to tighten these like the front, the engine mounts just sit on
the rubber blocks???).
Am I right in my recall that someone on the list mentioned that the engine
has a bracket at the rear that also supports the engine, and it is not
unusual
for this to crack and requires replacement or welding? From under the car I
cannot locate this?
Any advise would help
Tim
TC 9256
Oz.
/// unsubscribe/change address requests to majordomo@autox.team.net or try
/// http://www.team.net/mailman/listinfo
/// Archives at http://www.team.net/archive/mg-t
|