[T3] cylinder head breather ports on a 1972 Squareback

[Dave Pallo]

[[[I think you'll be okay if you plug the extra holes in the air cleaner and
just run it this way. With the original setup, this would draw clean air
into the heads and flush out the case, keeping condensation to a minimum.
This would be especially useful in cold weather.]]]
 
I don't understand this, Jim. If his pcv is drawing air out of the
crankcase, the air has to be replaced, right?
 
When I first got my '72 up and running, I too did not have the ports in the
heads and I installed brake line sized ports in the valve covers to allow
air in. I was flinging oil out the fan end of the motor at the time, and
this list told me I needed larger air ports to let more air into the case. I
didn't understand why, but I then installed about .500 diameter ports into
the valve covers and my flinging oil problem was solved.
 
How can Jacobs pcv system be okay to run with no way to let air back into
the crankcase?
 

Dave Pallo

'72 Square ~ Elwood

Fairport, NY

 

 

 

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