rycerock3t

so heres my problem:

when the car is moving and i step on the gas, the whole car vibrates to the point to where i cant hear my passenger / radio.

but when i let go of the gas, everything becomes smooth...

has anyone experienced the same problem? i'm clueless as to where the root of the problem may be. can anybody help me?

thanks

villin

possibly u-joints goin out and the drive shaft is off balance causing a loud hard vibration.

rycerock3t

one thing i forgot to mention - everytime i press on the gas again after letting the car coast, theres a LOUD clank of metal, and i dont know where its coming from....

SureShot

Don't drive it like that.

If you have to drive at all, be very gentle with power.

Your U-joint is just about to break and leave you stranded.

CyberPitz

Broken U-Joints are a bitch...be easy with it until you can fix it

rycerock3t

yeah ive been very VERY gentle with it... one of my buddies said that it could also be my tranny mounts... will that affect it in any way?

Apex944

iTrader: (10)

Sorry to jump in here, but my '88 T II is doing the same thing except for the loud clank of metal. Could it be the U-joints as well?

SureShot

My FAQ notes on U-joints:
As a U-joint starts to fail, it first looses it's grease, then the needle bearings start to wear and make slack & excess clearance.
The extra wear sometimes allows the shaft to wobble off center giving vibration.
Then the needle bearingss start to rub & bind on each other.
As they bind & pop free from binding, you can hear a "tink" sound that rings the tubular shaft.
This can usually be heard just as you start moving.
Visual inspection shows rust deposits near where you would normally see grease residue.

The RX-7 drive shaft is sold as a one piece assembled unit however you can take it to you local drive shaft shop and have them install new generic U-joints.