TinyTurbo

what have yo all done about your pcv valves to keep boost from getting into the crank case and blowing seals

quadnie

if you've learned how a basic pcv works on an n/a car then this diagram will make perfect sense to you:

Paperchase013

um, the pcv valve prevents the boost from getting into the crankcase.


it gets its name due to the fact that it is a 1 way valve. it lets positive pressures out the crankcase, but it doesnt let them in.

quadnie

most people run them stock and then the pressure builds up then -> no more rings or something else will blow up. Typically on a n/a car a bad pcv valve will ---- your valve cover gasket or worse.

whiterice

well. you have to make sure they work. that is what they do.
there are hand pumps to test if the valve is leaking or not.

quadnie

^^^^
yeah that would be called put it up to your lips and blow/suck on it to test for function :P

whiterice

so you're speaking from personal experience. i have a brake bleeder/vacuum tester with guage. it can hold the pressure for awhile to see if small leaks are present. it can also be used to test for pressure. we used it to see what psi actuators were set at. very useful imo

quadnie

I had one of those until I used it to bleed brakes.. was fucked after that for most practical vacuum uses. Yeah man, don't be afraid of a little oil.. never hurt anyone

projekteg

seriously man, take it out and blow and suck through it, air should pass through only one direction, if it doesn't pass through at all, it's time for a new one. they're only like 3 bucks.

quadnie

I just love it when you talk dirty :P