C5 Crankshaft Pulley

fred1 · Unread post by **fred1** » 26 May 2008, 21:10

Hi,

Getting sounds like "tappets" from the drivers side of engine (C5 2.2 HDi 2002) I assume it is the crankshaft pulley separating at the rubber bond I will look once weather lets up a bit.

Has anyone any experience of removing HDI crank pulley bolt?

Has anyone used an air impact gun to do this ?

Regards

John

Unread post by **Peter.N.** » 26 May 2008, 21:53

No experience with a C5 I'm afraid but the XM also uses a dual mass pully although I have only had one fail in about 12 years and 250+k. The bolt is tight and locktighted. I removed mine by selecting 5th and using a long bar with about 4' of tube on the end.

You can undo them by putting a socket with a long bar, the end of which is jammed against something or the ground and then just 'blip' the starter. The engine rotation is opposite to the thread. I have never tried this but I would have done had I remembered.

Unread post by **CitroJim** » 26 May 2008, 22:01

Peter.N. wrote: You can undo them by putting a socket with a long bar, the end of which is jammed against something or the ground and then just 'blip' the starter. The engine rotation is opposite to the thread. I have never tried this but I would have done had I remembered.

I've used this method on many occasions and can confirm it works a treat every time. For safety though, ensure the engine cannot start when doing this. Not sure on how to do this on an HDi though.

wheeler · Unread post by **wheeler** » 26 May 2008, 22:35

citrojim wrote:
For safety though, ensure the engine cannot start when doing this. Not sure on how to do this on an HDi though.

Easy, just unplug the 3 pin white connector for the cam position sensor pointed at the camshaft pulley.

CTR · Unread post by **CTR** » 29 May 2008, 18:08

It is not that bad - used electric impact wrench (12v) on mine.
make sure you get apparopriate whench head - it is 22mm is I remember correctly.

btw. - similar noise can be produced by aux belt tensioner pulley..
at least that was the case on my C5...

btw2. Crankshaft Pulley lasts exactly 1 year ...

fred1 · Unread post by **fred1** » 31 May 2008, 22:07

Thanks guys,

I was the dm pulley, managed to get the bolt loose with air rattle gun.

Replacement pulley from GSF and all is now nice and quiet.

John