toolsinbox

454; holley 750; with edlebrock intake.

On my valve covers they each have a breather stack that emit fumes and I was considering a change to help with the smell in the boat. what do I do here? With new valve covers do I vent them back into the intake with pcv valve? If so can someone explain the proceedure ie; where does it enter the intake? Does the pcv valve need power? bascially how do I make this change.

thanks much.

picklenjim

You use 2 of these adapters connected to the top of your flame arrester.
http://www.cpperformance.com/p-14122...gle-mount.aspx

toolsinbox

so you are saying to vent the valve covers into the flame aresters?

DareDevil

Yes, or u can buy a catch can and mount it somwhere and run the fumes to it , just don't forget to drain it out once a while !!!!!

But dumping in to the flame arestor is comon and actually helps oiling the intake valves !!

picklenjim

Yep. That's the way it's done.

picklenjim

Might want to get a couple of these also for a quick easy installation. Just be sure your new valve covers have a 1" breather hole. You can pull these out to add oil if needed.
http://www.cpperformance.com/p-13639...with-vent.aspx

ezstriper

the merc HP500 used a pcv valve in the intake, you can do the same in the valve cover..works better than just venting to the flame arrester

apollard

+1

My 7.4 vented to the flame arrestor, but still got oil smell / flim in the engine bay. Converted to a PCV and smell / film is gone.

toolsinbox

can anyone show me a pcv system using the intake from the valve covers?
thanks

Griff

Thats is how Merc does it.