VT vibration at 1500 RPM

[muzzachops]

Need help identifying a vibration and droning noise from the front of my VT S2 auto. It only happens around 1500RPM in any gear. It can be felt through the steering wheel, accelerator pedal and floor pan and only when cruising or accelerating. It instantly disappears when I remove my foot off the throttle. I'm thinking it may be the engine and/or trans mounts that need replacing. Any thoughts appreciated.

[F l a k]

Yeah mate I'd check the mounts and that the exhaust isn't close enough to be hitting anything. Is it a standard exhaust?

[muzzachops]

Yeah, all stock standard

[F l a k]

Hmm check all the exhaust rubbers/hangers too.

[Dayvo]

Check the tailshaft bearings and universal joints too.

[86 vl turbo]

Engine mounts mate I bet a carton on it

[86 vl turbo]

Jack the car up and see if the sump is touching the cross member if so it is the mounts those models are really bad for that if left to long it will were a hole in the sump

[monkeys437]

Check the tailshaft centre bearing and the rubber coupling that connects the tailshaft to the transmission and diff

[graham7773]

While you are under the bonnet, check the harmonic balancer. Is your car the early VT or VT series 2? early had steel universal joints, series 2 had rubber couplings. The steel uni's are notorious for vibration.

[Blue_VT]

sounds like uni's to me mate, i had a VS that had a similier problem, replaced the tailshaft with a wreckors one and it was fine.

[muzzachops]

It's a series 2, the sump is clearing the cross member by only 3mm or so at rest. It looks like it may have been touching under load by the ware line in the sump where the cross member is. Thanks for the heads up. I'll replace the engine mounts and see what happens.