my bj8 has a low volume knock in the front of the engine when it is first
started up after the engine has gotten hot. will not do it when engine is
cold. the knock disappears within a few seconds and will not come back until
engine is shut down for a few minutes when hot. as soon as oil pressure comes
up, knock is gone. do not know if oil prressure or time is the relevant
factor. have replaced con rod bearings even though ones in car were at spec.
could it be a timing chain or chain tensioner. all valves check good for lift
and clearance. any help appreciated. hjim
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