Technical Dual-mass flywheel

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Technical Dual-mass flywheel

A friend of the wifes has a diesel GP which has developed a severe clutch judder from standstill, she brought it round yesterday to compare it to ours and ask my opinion........which after a brief spin round the block was take it to the dealer ASAP. I have driven a Diesel Mondeo with a dodgy DMF and the symptoms were identical which makes me think the same thing could have happened with her GP.........but I wasnt sure the GP used DMFs.

Rubber?? they use springs and friction discs.......perhaps you have succomb to one of these?......http://en.wikipedia.org/wiki/Freudian_slip

http://www.apsw.co.uk/articles/clutches/benefits-of-the-dual-mass-flywheel.html
 
kris....
Its not slipping, just noisy and shuddering like crazy..... and I mean crazy when you take it up from a standing start. Its only done about 10K and something is definately not right with it, but to be fair the fault could be down to any number of clutch related issues. I am only guessing at the DMF based on the similar way the dodgy Mondeo drove. She was going to contact the dealer today with a view to getting it looked at and I will let you know the outcome when I hear something.
 
The other pointer to a failed DMF is excessive drive-line shunt which is witnessed by considerable backlash at the wheels if you jack the car up at the front with the gearbox in top gear and you have more than 75-100mm free play at the rim. I had a DMF failure a couple of years ago and the backlash on the starter ring was nearly 25mm when the manufacturer's tolerance was supposed to be about 3mm. It was even worse when the engine was hot and the neoprene core softened up.
 
Could it be the engine mountings are loose? There are one or two reports on this site of engine mounting failures and this might result in considerable noise and vibration on pulling away.
 
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