Just another shot in the dark - but I had a loose rear shock link
that was making a small clunk. Bolts were tight but the ball joint
thingy was worn vertically.
Mike L
60A,67E,59Bug,74TR6
----- Original Message -----
From: Ryan Miles <rjhmile@yahoo.com>
To: <6pack@autox.team.net>
Sent: June 11, 2002 9:57 AM
Subject: rear end clunk?
> List,
>
> My TR6 is on its second summer since a complete chassis and
mechanical rebuild. I am begining to notice a clunk coming from
the rear end and I am not sure exactly what the problem is. The
car has a fast road engine in it that at best guess makes ~140
horse at the crankshaft (The G-tech I have said 135 at the rear
wheels). I do not "baby" the car. Don't get me wrong, I don't
abuse it, but I do run it in local SCCA solo events, and I do
enjoy a "spirited" drive.
>
> The clunk is not extremely loud, and it only shows up when
you change the direction of the torque of the driveline (ie.
accelerating, then decellerating, then accelerating again). To
expand, If I have the gas pedal on the floor and I get off as fast
as I can, the next time I push the pedal the rear end will
sometimes let out a clunk. The noise is most consistant if I don't
get a downshift perfect right before stopping at a light or stop
sign. If I don't get the down shifts right it will make the noise
as soon as I start to engage the clutch in first gear.
>
> I am a little unsure what parts I should take apart to check
out. The diff mounts were boxed in and reinforced 2 years ago, and
the diff mounting bolts are still tight, with no abvious signs of
any cracks. I also checked all the bolts in the rear suspension,
which were all tight. Could this be a bad U-joint (I replaced them
myself, and it was my first experience with U-joints). I am also
curious if it could be worn rear axles, but when I assembled the
car I did check to make sure that the sliding joints were tight.
The UJ's probably have 4,000 miles on them, and the diff mounts
are poly, I don't know if that makes any difference. I'm not toooo
worried yet, because the noise isn't violently loud, but it has
gotten worse now that I have beeen racing the car and I would like
to know whats going on back there.
>
> Thanks for any suggestions,
>
> Ryan Miles
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