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View Full Version : Timing chain and tensioner


CBDE36
03-04-2004, 02:06 AM
I just purchased a 95 325i and was wondering how common is it that the timing chain and/or tensioner make an unpleasent knocking sound?

pwrsurge
03-04-2004, 03:27 AM
Seems like worn timing chain tensioner and chain guides are pretty common on the M50 and M52 engines. I'm going to replace mine this Summer since I now have 160,000 kms.

Anyone know if this is a big job or have an approx cost for parts and labor?

notjoe
03-04-2004, 03:31 PM
Originally posted by pwrsurge
Seems like worn timing chain tensioner and chain guides are pretty common on the M50 and M52 engines. I'm going to replace mine this Summer since I now have 160,000 kms.

Anyone know if this is a big job or have an approx cost for parts and labor?

I'd be interested in this as well.. maybe we can do a group buy on this

97 Z3 2.8
03-04-2004, 07:38 PM
No GB guys, it's a mechanical failure not a performance add on. The primary timing chain tensioner is a 15 minute job, as long as you know what you're doing. The senondary chain tensioner is about 2 hours worth of work, again assuming you knew what you were doing. Judging by your posts you'll save ALOT of time if you just take it somewhere. The primary one is tough to get at without the proper tools, and the seconary one requires the removal of the vanos unit.

Bill

pwrsurge
03-04-2004, 11:41 PM
Thanks Bill - I'm taking it to Cross Avenue Auto in Oakville. I trust their work..