Re: Downhill, Deceleration Vibration
Bob Johnson had a good response. I had a similar problem with vibration when using the engine for braking, about the same RPM. I have the Float-A-Motor rear engine mounts. My solution was to loosen up the bolts that go through the rubber cushions on the mounts. That helped a lot. I still get some of the vibration but not nearly as bad.
The lightened flywheel does not help. I have that too. The crankshaft torsional vibrations will be felt in the flywheel when a lightened flywheel is used. With the original 65 pound flywheel, the node point for the torsional vibration is right at the flywheel. With the lightened flywheel it moves forward so that now the flywheel is vibrating.
__________________
A is for apple, green as the sky.
Step on the gas, for tomorrow I die.
Forget the brakes, they really don't work.
The clutch always sticks, and starts with a jerk.
My car grows red hair, and flies through the air.
Driving's a blast, a blast from the past.
|