Posted by Steve@Advance on March 07, 2020 at 11:32:54 from (66.169.147.211):
In Reply to: H Oil filter posted by Grandpa love on March 07, 2020 at 05:48:36:
Someone specifically familiar with the H engine oil circuitry will know for sure, but generally the old engines used a "bypass filter" system.
That means a small amount of oil was metered through an orifice to the filter canister, passed through the filter, then back into the crankcase.
If the orifice is missing, the flow will be too great, and the oil pressure will be very low, especially at idle. At the same time the canister will be somewhat over pressurized, as it is not designed to contain full oil pressure.
If the return to crankcase is blocked, the canister will over pressurize, lift the lid, and leak. This is especially true if the relief valve is stuck and the cold oil pressure is excessive.
Or it could just be the wrong seal, warped cover, over tightened and cut the seal, bad threads and failed to tighten to the seal.
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