I suggest pulling off the starter motor and seeing if the flywheel is loose.
----- Original Message -----
From: <Jasonsmf@cs.com>
To: <FOT@autox.team.net>
Sent: Thursday, August 21, 2003 9:56 AM
Subject: TR6 engine vibration..
> Amici.. Our TR6 has developed a pretty nasty vibration in the
engine that starts right around 2900 RPM (or so the 31 year old tach
reads)and continues up to around 3200 RPM. This vibration seemed to appear
on it's own, without any changes being made on the car. The engine has been
internally balanced (a couple years prior to this problem). I'm pretty sure
the vibration is from the engine, it will vibrate weather the car is moving
or stopped, neutral or in gear, clutch engaged or dissengaged, none of these
make any difference. The engine has been tore down to the bare block since
then, everthing seemed to be OK inside (bearings good, all rotating parts
visually good...). I'm not sure what is going on. Could the crank damper
have gone bad and no longer damp a harmonic at this RPM?? This car still
sees some street duty and this vibration is right smack dab in the meat of
crusing RPM. This vibration can really be felt strong if I hold my hand on
the intake manifol!
> d as I free rev the engine as the rev's fall off through this 2900-3200
rpm range. Any ideas??Thanks in advance.Jason Sukey
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