Strange clunk
Strange clunk
Author
Discussion

MarkoTVR

Original Poster:

1,139 posts

263 months

Tuesday 21st August 2007
quotequote all
This is posted elsewhere too, but I thought I'd get as many opinions as possible....

Not long had my T2, but I've noticed that I get a clunk from 'underneath' the car at times. It's usually more prominent when changing gear, but I've noticed what seems to be more subtle versions of it just driving along at a constant speed.

It sounds a little like the 'drivetrain shunt' I used to get in my Mitsi GTO TT when selecting reverse.

So, being a Tuscan newbie, is this normal? I know the 'box in these things is allegedly not the latest in technology (Borg Warner/Tremec T5?), so is that just part of the mechanical nature of it, or am I potentially looking at play in the prop or (hopefully not) the diff/rear axle? It certainly seems to handle well enough, so I don't think it's any part of the suspension.

I did think it might be a wobbling exhaust given that it doesn't always happen under load, and given a smooth enough gear change there's nothing at all. I've not properly checked underneath as yet as I've no jack available to give the room for a good look, and my inspection pit has 18ins of water in it!

Either way, I've contacted TVR Power to arrange for them to check it out. Just wondered if there were any thoughts out there as to what it may be?

so called

9,160 posts

238 months

Tuesday 21st August 2007
quotequote all
Hi Marko,

I just had a 12000 mile service TorqueRVT. While doing it they inspected the exhaust for body contact and made some adjustments.
They also changed a couple of exhaust mounts.
They told me body contact was quite common.
I had noticed the occasional clunk so hopfully yours is the same

MarkoTVR

Original Poster:

1,139 posts

263 months

Tuesday 21st August 2007
quotequote all
Fingers crossed it's that then! biggrin

Leadfoot

1,918 posts

310 months

Tuesday 21st August 2007
quotequote all
Common probs are:

Engine mounts (the left one gets cooked by the exhaust mainfold heat) allowing the engine to drop & then the exhaust touches the chassis.

Diff mounting bushes.

b2tus

952 posts

288 months

Tuesday 21st August 2007
quotequote all
"Flagpole" had similar symptons on his Tamora.....turned out to be diff mounting bushes.

MarkoTVR

Original Poster:

1,139 posts

263 months

Tuesday 21st August 2007
quotequote all
Cool, another potential explanation. I'm sure Power will reveal all soon.

so called

9,160 posts

238 months

Friday 24th August 2007
quotequote all
Now you have reminded me, I had my diff mount changed as well last December.