Thread: Who has the most miles on their original timing chain?
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Old 12-23-2005, 01:59 PM
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Hatterasguy Hatterasguy is offline
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Join Date: Nov 2002
Location: Milford, CT
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The limit on a 603 is 4 degrees, and mine is right at that. I have no idea what the limit for a 617 is.

Timing chains on these engines will stretch and mess up your timing long before they break. Can you run one of these for a long time with a lot of stretch in the chain? Sure but the engine will not be running as well as it could.

Considering that for a 603 a chain is like $180 and real simple to change I am not going to waste my time trying to nurse it. If MB specs the timing at 15 degrees thats what I want my engine at.
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