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350 with a main knock once the motor temp warms to normal and the oil pressure drops from around 50psi to about 15psi would just a new crank and main bearings fix it?
Wiki User
∙ 17y ago
Most likely the knock you hear is not a main bearing, but a rod bearing. When the bearings wear, they tend to get egg shaped and once the oil warms and thins out, the knock becomes more apparent. It is possible (if the crank journals are not worn beyond tolerances and there are no cracks) that a new set of bearings alone can temporarily quiet the knock down. This is something a backyard mechanic could do if he (or she) is experienced. However, leave the tolerance checking to a professional. There are a number of things he will want to check and all are important.
Wiki User
∙ 17y ago
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