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Not a problem on US M3's (archive)
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Posted by JamesM on January 14, 2001 at 10:59:19:

In Reply to: Time for new timing chain? How much will it cost? posted by MSM3 on January 13, 2001 at 22:24:07:

For some reason, no one has complained about a problem with the M3 timing chain. The M5's, however, are a different story. My M3 has 170k miles on it, and I won't change it until I rebuild the engine. Many others have racing M3s that have well over 100k miles with no reported problems of timing chain failure.

If you want to do it, you'll need the chain, tensioner rails (2 pieces), upper guide rail, plastic guide rail with new "e" clips, crank sprocket, cam sprockets, lock plates, sealing washers and o-ring, timing gasket set, and flywheel holder. I don't know what size the crank hub bolt is, but it's on there pretty tight. A shop will charge you an arm and a leg to do it--probably in the $1500 range for parts and labor.

Get on the E30M3 SIG list at www.bimmers.com. Well worth the $12 for some sage advise and total lack of flaming.

James
james_535@yahoo.com
88 M5
88 M3
83 535i

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