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Valve Very
Valve Very
What can cause valve clearance to change?
I had the valve clearance of my car's engine adjusted last month because it was making a lot noise. That made the engine run more quiet. But it is now back to its noisy ways. The mechanic who did the adjustment recommended that I should have the engine "top overhauled" because he says there is loose compression. Can that cause valve clearance to change very quickly?
Thanks for the responses.
the loose compression is probably caused in part by the low valve clearance. I wouldn't be surprised if some of the valves were chipped.
Valves are returned by springs. Springs wear out.
Rockers can also lose force because of wear causing play.
Also when valves get gummed up over time, they don't move fast enough to seal the chamber for compression.
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