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Crankster · 11-04-2021, 10:24 PM

FWIW I have read that the rope type crank seals were originally impregnated with asbestos, and the modern rope seals are not. Some engine builders claim these new rope seals do not give satisfactory service.

11-04-2021, 10:24 PM	#4
Crankster Senior Member Join Date: Oct 2017 Posts: 563	Re: Rear Main Seals FWIW I have read that the rope type crank seals were originally impregnated with asbestos, and the modern rope seals are not. Some engine builders claim these new rope seals do not give satisfactory service.