Let me correct my previous statement.. When I said that I usualy get rid of
it failed to mention that there are aftermarket open air elements made to
plug into the PCV socket. The only use for this method is to reduce the
amount of HOT air being fed back into the engine through the TB.. This is
only usefull if you have some kind of ram air induction though. But if
your conserned about emitions its best to keep it feeding back through.
At 07:16 PM 3/9/98 -0500, you wrote:
>At 11:29 AM 3/9/98 -0500, you wrote:
>>> > The question is... what is it and why is is so beat up
>>> >compared to the rest of the engine compartment?
>>
>>> That Thingy is called a PCV valve.. If my memory servs me it is
>>> sort of a vent.
>>
>> Well, sorta. That pyramid-shaped thingy is the PCV breather. The
>>PCV valve is in the other valve cover.
>>
>>> One of its jobs is to recycle fumes and hot air
>>> back into the enging... For the EPA you need it.. From what I have
>>> done in the past is to get rid of it..
>>
>> This is not good advice. Not only is the PCV system part of your
>>emissions package (making disabling it illegal, which is what you're
>>doing when you replace the breather with an open-air element), but
>>it can actually help the engine by helping to remove volatile impurities
>>from your crankcase. I don't know what effect breaking the pressure
>>loop like this will have on the system, but I don't think the disadvantages
>>outweigh any potential advantage.
>
>
>I agree completely with Ron. The PCV valve is only in use when the
>throttle is closed (ie high vacumn like idling or cruising) When the
>throttle is open (low vacumn like accelerating), the piston blowby is
>vented through the PCV breather and into the air inlet before the throttle
>blades.
>
>Crankcase blowby is fully 1/3 of the engine's nasty emissions and is the
>easiest to clean. It wastes no power and uses little money ($2 for a
>valve?) to operate.
>
>Nicholas
>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
97' 3.9DakCC 4x4 Rhyno lined bed, rocker panels, and door jams.
Color matched Raven Fiberglass Topper, Heavy duty everything.
Fog lamps, 6x9Folding Mirrors, Mopar Bug Shield and Flat Bed Linner.
Shaved all Decals except for engine tag and 4X4 logo on tailgate.
Have my web address in place of the Dogde logo on tailgate.
Check out my web site for more details. http://www.deltech.net/dbaker
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:08:22 EDT