V8 GT rattle

[mikesmith]

Hi people, has anyone had this problem? On cold start my V8 GT has a nasty rattle until it warms up. It sounds more like a chain rattling than tappit rattle, poss from the top end? If anyone can shed any light on this I would be very greatful. Cheers, Mike.

[Günter]

Hi people, has anyone had this problem? On cold start my V8 GT has a nasty rattle until it warms up. It sounds more like a chain rattling than tappit rattle, poss from the top end? If anyone can shed any light on this I would be very greatful. Cheers, Mike.

the only chain in your engine is the one between crank and intermediate shaft (with the oil pump assembly and timing belt wheels)

[talon]

Have you already ruled out heatshields? Mine had a similar rattle when I got it. Turned out that one of the heatshield bolts had loosened, which caused it to rattle until the shield expanded as the engine came up to temp.

[mikesmith]

Have you already ruled out heatshields? Mine had a similar rattle when I got it. Turned out that one of the heatshield bolts had loosened, which caused it to rattle until the shield expanded as the engine came up to temp.

I'll check it out cheers thanks, Mike

[peter beese]

It the hydraulic valve lifters. they all rumble to some degree after initial start up. just keep an eye/ear on it.

[Stuart]

I had a similar noise. Checked the heat shields and anything else that I though it could be. In the end it turned out to be the chain on the intermediate shaft. This has a pair of metal guide shoes that had slackened off, hence my rattle. Oddly enough it was only evident when the oil was cold and the car on tick over, revved or with a warm engine and the noise wasn't there.

Stuart.

[cweeden]

You might also want to check the chrome tail pipe trim. One of mine has developed a rattle at certain revs which is very similar to the heat shield rattle that is more common.

cheers

-Chris