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Old 01-03-2001, 12:12 AM
P.E.Haiges P.E.Haiges is offline
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Join Date: Jan 2000
Location: PA
Posts: 5,440
Oil for the rod journals goes thru the groves in the main bearings and thru the holes drilled in the crankshaft to each of the rod journals. Thus a leak at the top of the engine would not affect the rod bearing for that cylinder but it might affect all the bearings if it lowered the oil pressure substantially. If the crankshaft journal is even slightly scored, the crankshaft must be reground (not "turned" as previously mentioned). I suggest regrinding all the journals to the same size and put in a new set of oversize rod bearings. Have the machine shop check the main bearing journals to see if they meet MB specs. If not, have them reground also and put in a new set of oversize main bearings.

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