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Timing Chain

995 Views 2 Replies 3 Participants Last post by  spanners
Apart from having to change it, is there a specified time or a good time to do some preventative maintainence on this part.

I understand idle may fluctuate or you'll hear a knocking noise on the tensioner arms/bars. Any other evidence apart from age or mileage?
thanks

ssb
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· Registered
'85 2.3-16 '99 C280 '11 GLK350
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4,803 Posts
Actually, unless the chain is stretched or worn, you don't change the chain, but more li...

Actually, unless the chain is stretched or worn, you don't change the chain, but more likely replace the tensioner and chain rails. A sign of a worn tensioner is, on startup, you'll hear a chain rattle for a few seconds until the oil pressure builds up.

If you're going to change the tensioner, rails and/or replace the chain, consider doing all the necessary front end work since your radiator, chassis support, etc. will be moved out of the way. With the front timing cover off, it will be the best time to put in a new oil pump, have the thermostat tested and have the hoses redone.
 

· BenzWorld W126 & W201 Host
1988 420SE, 2002 C180 Kompressor, 200 ML320
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1,150 Posts
Timing chain

The 190e 2.0 litre 4 cylinder engine was infamous for wearing out timing chains before they modified it to a double chain.

The 2.6 litre 6 cylinder never suffered from this problem and in 10 years of working on MB's I never replaced a single one.
 
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