[ant7]

Originally Posted by PeteKz

JW, Ivan, others: Something else that will indicate chain wear is the cam timing. As the chain wears and "stretches" the cam will become more retarded (no pun in intended). Given the lengths of the chain on the tension side of the sprockets, I would expect a small amount of wear to shift the cam timing noticeably.

Note: This is common on Mercedes OM617 and OM616 diesel engines, which I have owned, and checked the timing and retimed them. It's usually not significant until about 200Kmi., but Mercedes diesel owners tend to drive their cars a long time!

However, I have not noticed significant cam timing shift on my engine (but only 30K since a major rebuild), and I have not heard others complain about it, so that also would indicate the chains last a long time. Have you heard or observed cam timing changes in higher mileage engines?