How can I check this?
A worn timing chain can be diagnosed by using a timing light to observe the relation of the timing marks on the timing cover with the marks on the crankshaft balancer. If the marks move back and forth in relation to each other instead of remaining in a steady position while the engine is running, the timing chain is most likely very worn.
Yep, good answer joef, and it is not likely to break but they stretch and can cause it to jump time, and if it jumps too many cogs on an interference engine, say good bye to the top end. Pistons will hit valves that are not supposed to be open
What year is it? Are you sure it's a chain and not a belt?
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