Quote:
Originally Posted by Fortunateson
Those are some good suggestions. But I thought you had to plumb a line under the intake manifold?
|
Hey Fortunate .....I've gone and looked at your previous posts, and I
THINK I've determined that you have an 8BA-type of flathead...is that correct? The early ('32-'48) flatheads "breathe" and vent differently than the 8BA-type ('49-'53), so it makes a difference in how your PCV system is set-up.
To answer your question about plumbing a line UNDER the intake manifold.....that is a pretty broad question, and the 'routing' would depend on several factors. Yes, we have all seen plumbing AND PCV Valves themselves mounted under the intake manifold, some examples shown below.
We see all kinds, and there's one pictured above that I still can't figure-out how it operates. Another thing seen herein is the PCV Valve mounted HORIZONTALLY. MOST PCV Valves are designed to be operated in a
VERTICAL position. And, some flathead Ford engines are assembled using a mix of the "Early/Late" block and intake manifold, which brings it's own set of circumstances into the picture. So, just by having a line plumbed "under the manifold" doesn't mean that it's necessarily a good thing...or a bad thing.
The system that Heard and I designed/assembled has it's own unique set of circumstances, which EVERY flathead PCV system will have it's own unique circumstances to design for. Our system involves an 8BA block (late), with a Thickstun PM-7 manifold (early). On top of that, we decided that we wanted to hide that ugly PCV Valve and to keep any associated plumbing as pleasant looking as possible. We ALSO did not want to have to remove the manifold to access the PCV Valve, keeping in mind that the valve should remain vertical to function properly. Click on the link BELOW for the full story, lots of facts and theory, as well as many pictures, and of course....a parts list. Hopefully this will help you! DD
https://www.fordbarn.com/forum/showt...a%2C+pcv+valve
........