engine breather use on pcv outlet? - Performance Forum

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engine breather use on pcv outlet?
Wednesday, January 18, 2012 12:14 AM
hey guys it`s ben,
ok so i was thinking this and it`s really been bugging me a little. i know usually cleaner and colder air the better, i was wondering if use of an engine breather on the pcv vavle was better than a normal line. i don`t see the harm on it but still better to ask than not. i came to this conclusion the other day, pcv only lets off fumes in the engine built up during heat and then release it back into the intake route, so eventhough smll amounts i can`t imagen that helping anything save for emissions purposes,bad being heat and oil fumes although i do believe thats only minor but every bit helps. theres no law where i live for emissions testing being done but before i do i thought i would run it by you guys (and girls forgive me its just a saying) before i do it, even though i think its a no brainer but on the off chance im wrong, that and would it cause an oil mess even if its minor?


thanks,
Ben

Re: engine breather use on pcv outlet?
Wednesday, January 18, 2012 5:06 AM
The PCV will pull a vacuum on the crank case to keep pressure from building up under the pistons, which essentially will fight against the production of power. The PCV valve is a check valve, so it shouldn't suck air through it to the crank. So long as you put the filter, on the valve itself you should be ok.

I ran my 3400 like this for a while because the PCV stuff was broken on my engine when I got it, and I happened to have that little filter. I didn't really notice any difference. Only thing I ever really saw was on the dyno you could see smoke coming out of it when they got off the throttle. Other thing is on mine that the hole in the intake manifold for the PCV is behind the throttle plate, so it had to be plugged off, I don't believe this is so on the 2200.

FWIW, I would say it's not even really worth your time and effort to put it on. It's not going to be any sort of benefit to you.





i find it amusing that SHOoff has nothing better to do but follow me around & be an unhelpful dick in even cross-forum. - Jon Mick
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