Perhaps the quality of parts is going down.
Volvo is going back to chains - so is Subaru,
My son-in-law is a Subaru tech and they are having ring problems - Frank just figured out a problem that they are having with knocking after a ring job any is getting an award from Subaru.
It seems that their instructions for tensioning the chain by squeezing the chain by hand is insufficiene - he tried using vice-grips to add more force and avoided the knocking that they were getting after reassembly of the engine.
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