PCV kits

[Jack E/NJ]

hbleadsled wrote earlier: >>>I hooked my hose to manafold but now think the gasses should be going down the carb. and out the tail pipe. what do the barners think?>>>

I think you're right. The simpler the better. I use an early intake manifold with a Chrysler-style PCV breather cap over the oil filler hole in the back. A hose runs from the cap's barb directly to the low vacuum side of the carb thru a barb on a 1960/70s era air filter cannister. A small air filter and fiberglas screen is wrapped around and protects the road vent. That's it. Didn't bother with a PCV valve.

Jack E/NJ

 

[296 V8]

This is just a theory I have but I believe the PCV valves secondary function is a safety thing.
A PCV valve is basically a check valve / one way valve (yes?). In the event of a backfire presser closes it keeping the fire/flame in the intake from lighting off the blow by in the engine.

I was arcing a plug wire to ground on a forklift once
(to close to a leaking road draft tube)
The resulting explosion blew the rocker cover off and scared the S%#T outa me.

 

[Jack E/NJ]

Could be. Backfire threats may be why air filter cannister barbs are located outside the filter & screen element. The screen will cool/stop the flame front. Like the screen in a safety can for flammable liquids.

Jack E/NJ

 

[Chill]

Would a PCV affect a brake booster?

I understand gas fumes are bad for the booster.

Can I put a check valve in the booster's vacuum hose, which connects to the carb base?

 

[51 MERC-CT]

Would a PCV affect a brake booster?

I understand gas fumes are bad for the booster.

Can I put a check valve in the booster's vacuum hose, which connects to the carb base?

PCV does not effect booster.
Install GM booster filter.
No check valve required.