[Supras] Timing belt replacement

[Bob]

Yep that is the one. I haven't pulled the front of a 7m down in years

I still have to decide what maintenance to do.  The timing belt or keep
chasing a vibration.

Has anyone noticed a heat related vibration associated with the clutch?  I
can make the clutch shutter a bit if I don't let off the clutch smoothly but
generally it works fine.

The vibration appears above say 50 mph and is pretty bad around 70 mph but
only when the car is warm.  Engaging or releasing the clutch doesn't change
it.

I've considered the fan clutch but it is tight and it feels fine.

I can shut down the motor and the vibration doesn't change noticeably. I
guess I could remove the fan clutch for a short time to test this.  The only
problem is that I'm in Miami and it won't be until mid winter that I would
feel comfortable that the car won't overheat.

I know it isn't the driveshaft or carrier bearing, tires, rims or brakes. 

Any Thoughts or suggestions would be appreciated.

Bob

-----Original Message-----

I think he means the drive gear for the oil pump.  You need some way to keep
it from moving when you undo the bolt. I took an aluminum bar and put to
long bolts through it so that they engage the gear spokes.  That keeps the
gear from rotating, and then a wrench removes the bolt.  

Removing the crank pulley is more challenging. That bolt is tight. I needed
a 4 foot gas pipe extension on a breaker bar, but I'm a weakling. You also
need some way to keep the crank from rotating.  5th gear works well if it's
a manual.

Jon
90T