Thread: Td5 HD TC fitted. Now I have the 2100 rpm rattle?

Originally Posted by simonmelb

That sounds like your exhaust may be just touching the chassis to make that sound. I had that sound when one of my engine mounts had collapsed which caused the exhaust to just make contact with the LH chassis.

The exhaust can also go the other way, and touch the edge of the sump, especially if you tighten the muffler end of the down pipe before you tighten the turbo flange bolts.

Exhaust is fine. The problem happens in park too at 1700 rpm. So me under the d2 looking for things rattling was the fist thing I did..

The engine mount I checked with my crane there's no lifting separation but when you compare the gaps starting from the hole the passenger side looks like over 20mm and the drivers side 10mm. So 50% different.

I'm still searching for an answer on wether 50% different results in vibration.

Mine were both substantially lower than they are new and induced a fair vibration which was eliminated with new OEM mounts.

Engine mounts or gearbox mts. I have the HD TC fitted and there is no noise or vibration what so ever from it. In any rev range. I think if that was the case Ashcrofts would be telling people about it and maybe fixing the cause. I could not see them allowing something like that to be mainstream in 1 of their products.
Cheers Scott

Check the routing of the high/ low range and centre difflock cables against the floor of the vehicle. I have fixed numerous vibes through the floor of these by repositioning or sleeving the cables with rubber pipe. They can be hard against the floor after a trans removal and refit and since they transmit engine vibration they will be very noisy.

Also, if you have ACE then the ACE pipework can and will send lots of rattling/ vibrations through to the chassis/ body if anything is touching the lines. I once had a horrific racket from the ACE pipework in a V8 D2, found the culprit it was a piece of gravel sitting on top of the pipe cluster under the drivers floor/ bulkhead!

JC

I have spent months looking for a very similar rattle.

It turned out the be the heat shield on the transmission mount.

It has a crack in it right at the base as it goes under the mount.

Worth a look.

Out of frustration I replaced the ds motor mount. And all exhaust hangers.

Still doing it.

If only I could sit on a dyno and load the drive lines.

The problem is now more evident driving then parked.

Ill check the high cable in the morning.

The left hande transmission mount heat shield I took off.