Vibrating Heatshields

[mac1967]

Hi Chaps,

I appreciate this appears to be a very common topic but I would appreciate some help please.

I have a Larini Club Sport on my S2 and guess what...there is a vibration at 3000rmp which stops at about 3500rpm...hhhmmm...?

It's not the exhaust.
It's not the pipes rubbing on the grills.
It's not a loose undertray.
It's not a loose rear grill.
The flexipipe appears to be undamaged and not vibrating.
The exhaust is not catching or rubbing on the undertray.

This leads me to believe it could be a heatshield?
I woulder if anyone could help me by telling me just how many heatshields there are?
I'm sure I've checked them but as I can't think of anything else it must still be a heatshield??

This appears to be a very frustraing problem for those of us it concerns and I'll be buggered if I can locate this silly simple problem??

Thanks for any help chaps.

Regards,

Mac

>> Edited by mac1967 on Friday 21st April 13:19

[shangani]

One other thing to check on a Larini. The left tailpipe crosses the pipe from the cat to the left silencer box before exiting the grill. It is a tight fit and can cause vibrations - worth checking at least.

Could be internal (the box itself) - QC at Larini seems to have been a bit random on occasion, though mine has been tiptop.

[bher]

IIRC, on my new 111r, I had a vibration at 2500 till 3000 RPM. It appears to be the heatshield on the right side wich was slightly bend and thus touching the exhaust when this one was vibrating.
As the car was under warranty I did not remove the diffusor myself, but once done on the bridge at the dealer, it was obvious that the problem was there. And then gone
Hope this helps

[jeffers_EliseS1]

Theres also a heatshield on the exhaust manifold. Big silver one at the back of the engine bay (behind the cabin). Quite easy to test if its this one - you can just grab hold of it with a pair of gloves and rev the engine.