I have rebuilt and rebuilt again many td engines. The problem I often have afterwards is a leaking rear main seal. When rebuilding these engines I often note that it has a three notch or three hole head gasket. When I measure the piston to deck height clearence it invariably calls for a single notch or hole. My wife’s 91 Jetta wich we bought new had main seal leaks and the dealer changed the seal and clutch plate under warranty in year 8. Now when I disaaembled the engine I noticed a three hole head gaskett. Maybe the dealer put it in I don’t know. Other 92 engine I disassembled was the same. Is that the solution to the leaking real main seal? An aftermarker dealer in San Deego California told me not to retorque the head bolts for the second time after 1000 kms. Maqybe that is weakening the bolts? Do you have any ideas?
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