@cengles posted:Dear Steve,
Thanks for the reminder that the thin, flimsy, trivial and lowly oil slinger is actually a functioning and purposeful part of the Cleveland symphony. I always use one, but I have questioned how beneficial it is.
Warmest regards, Chuck Engles
...I'am going to tell All of you, what the Benefit of this 'Trivial' Part Is.
First of all, a question. "Would FORD add thousands of dollars to the cost of Manufacturing the 351 Cleveland Engines, by adding this one Piece, just because it 'Looks Pretty'...and it does Nothing ?"
...On this Forum, Where is the 'Vision'? The 'Imagination'?? Most owners, here, Need to 'Read a Book', The Books.
The Oil Slinger is there, Duh, to Throw Oil through/over the Timing Chain, the Gears and other parts. But THAT is a Bonus Aside to the very Reason it is actually There, to 'Guard' Against Crankcase 'Pulsating' Pressure (caused from the Rotating Assembly and Pistons with Blow-By) from forcing Oil Out through the Forward Crankshaft Oil Seal. The Slinger Prevents 'Most' oil from ever reaching the Seal, by Throwing it 'Out' Centrifugally, as the Oil runs twisted around the crankshaft Towards the Seal. NO Oil, NO Oil Leak.
...To All, If Your Forward Oil seal IS leaking, your Slinger is either Missing, OR You have Capped/Plugged Both Valve covers, where there Must be Breathers...in which case Both front and rear Oil Seals will Leak from failure. You have 'Blown-Out' the Seals.
MJ