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Jack Shaft · 01-30-2021, 01:05 PM

Sludge is from years of non detergent oil. Instead of being held in suspension and flushed out during a change like detergent oil,non detergent oil allows debris to settle out in the pan.

Cracking with a late B happens,I have one.Since it was repaired correctly and has fresh babbit Ill build it over the two uncracked late B's I have. B engines as Jim says,don't need an oil pressure gauge..stock.Instead of gravity fed main bearings and cam bearings like the A,Ford supplied positive oil flow to the bearings with the B..not pressure...constant flow.

01-30-2021, 01:05 PM	#8
Jack Shaft BANNED Join Date: Dec 2019 Posts: 1,196	Re: Tech Q ? Sludge is from years of non detergent oil. Instead of being held in suspension and flushed out during a change like detergent oil,non detergent oil allows debris to settle out in the pan. Cracking with a late B happens,I have one.Since it was repaired correctly and has fresh babbit Ill build it over the two uncracked late B's I have. B engines as Jim says,don't need an oil pressure gauge..stock.Instead of gravity fed main bearings and cam bearings like the A,Ford supplied positive oil flow to the bearings with the B..not pressure...constant flow.