The reason i ask is that i was going to chnge it anyway, and then on the package it said to help with emissions, i thought it was just to releive the presure in the engine....The stock pcv is still in the car.

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1986 Trans Am
305 TPI
"If it's not one thing, it's another!"
http://www2.hanover.edu/hierlmeier

 

YES CHANGE IT. POSITIVE CRANKCASE VENTALATION, yes it helps emissions but more importantly it reduces pressure in the engine SAVE THE ENGINE SEALS!!!!

 

Out of curiousity... can't you just do away with a PCV valve and slap in a snap-in breather? IMO it would look nicer... and keep all that crap dirty air outta the intake. (thats where the PCV air gets routed to, right?)

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1985 Camaro SC - 2.8L, auto.

Mods:
Removed air baffles, mandrel bent cat-back pipes (but stock replacment muffler, Dynomax Turbo and Catco converter are on thier way)

 

Yes you can eliminate it and run just a couple of cool looking breathers, but its not wise.

As stated above, you will start to have oil retention problems as the seals and such will start to seap, possibly give out, over time.

The PCV valve develops a vac. in the crankcase so it doesn't build up too much pressure. Belive it or not, this pressure costs horsepower. (very little, but still...)

If you think a vac. in the crankcase isn't ness., just look at a pro stock or one of those bitchin "fastest car" shootouts, they sometimes actually run a converted air pump to pump out the crankcase...thats some serious PCV...

Yes you should keep it. It does no harm, and all good.

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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R
and 2 POS commuters...

R.I.P. #3
"He can see air"

[This message has been edited by Engineboy (edited June 23, 2001).]

 

Just replace the PVC valve, what's it cost $2 or something like that. You do need some kind of system to relieve the pressure or like the others said you will start getting oil leaks everywhere, lots of older cars and race cars use a tube that comes off the valve cover and joins into a exhaust pipe, that causes a vacuum and relieves pressure in the crankcase.

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92 Camaro RS 5.0 5-Speed
L98 Alu. Heads
SLP coated headers
Dynomax cat-back
14" open air cleaner

1998 Dodge Ram SS/T