Quote:
Originally Posted by bmwillia
I have read a little about PCV valves being installed on these older flatheads. Is that what I need? Can someone provide a resource for how to install it? Thanks!
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A PCV system does not work well if your engine is a 35. The early flatheads do not have a modern type rear crankshaft seal and it allows air to move in and out of the crankcase. A PCV creates a vacuum in the crankcase and will pull air in around the rear seal area. This can pull clutch and road dust into the engine.
Interesting you are getting so much blow-by, would guess the rings were never properly seated.