my pvc/pcv valve for my 1994 integra LS isnt going in all the way into the black box thing on the block. its almost all the way in. i just need to know if this will affect my cars performance. please help!

 

You can always shave it down with a file or a pair of channel-lock pliers. That did the trick for me.

 

so im not the only one with this problem? heh. well, if i decide to just run my motor as it is anyways.. would it aff ect my MPG?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RSVTECDC4 &raquo;</TD></TR><TR><TD CLASS="quote">so im not the only one with this problem? heh. well, if i decide to just run my motor as it is anyways.. would it aff ect my MPG?</TD></TR></TABLE>

It might leak.

 

damn.. so i should just shave the valve down a little so itll go right in?

 

bump.. anyone else have any ideas?

 

If your talking about the same thing im thinking about then mine fell out during a race so I pluged it with a radiator drain plug. Its still running.

 

the question is ... do you gain or lose horse power

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa4Life &raquo;</TD></TR><TR><TD CLASS="quote">If your talking about the same thing im thinking about then mine fell out during a race so I pluged it with a radiator drain plug. Its still running. </TD></TR></TABLE>

You can't just plug your PCV shut. Your crankcase needs to vent.

 

The PCV valve returns unburned fuel back into the engine through the intake manifold. It's used mainly for emissions so the fuel doesn't get into the atmosphere.

 

Well im in the middle of rebuilding my engine now so I will get a new one. But just to clarify: The "box on the back of the block" your talking about is that reservoir looking thing thats about the same size as an MSD that sits on the block to the right of the intake manifold brace right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spoonek9 &raquo;</TD></TR><TR><TD CLASS="quote">The PCV valve returns unburned fuel back into the engine through the intake manifold. It's used mainly for emissions so the fuel doesn't get into the atmosphere. </TD></TR></TABLE>

That is wrong. The PCV valve does not return unburned fuel to the engine. It vents crankcase pressure that includes oil, water vapors and other contaminents. The stock setup recirculates this crap into your intake manifold for emissions purposes.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RyanCivic2000 &raquo;</TD></TR><TR><TD CLASS="quote">That is wrong. The PCV valve does not return unburned fuel to the engine. It vents crankcase pressure that includes oil, water vapors and other contaminants. The stock setup recirculates this crap into your intake manifold for emissions purposes.</TD></TR></TABLE>

What are the other "contaminants"?!? It's not supposed to recirculate oil, and water, the last time I checked, wasn't harmful to the environment. So the only thing left would be fuel that gets into the crankcase via blow-by.

Never noticed oil that smelled like gas??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spoonek9 &raquo;</TD></TR><TR><TD CLASS="quote">

What are the other "contaminants"?!? It's not supposed to recirculate oil, and water, the last time I checked, wasn't harmful to the environment. So the only thing left would be fuel that gets into the crankcase via blow-by.

Never noticed oil that smelled like gas??</TD></TR></TABLE>

fuel is not suppose to be in the crankcase. fuel only goes into the combustion chamber. PCV is POSITIVE CRANKCASE VENTILATION. it allows the crankcase to breathe, letting out oil and moisture. if there was no PCV then the crankcase will build too much pressure and somethiung will damage


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RSVTECDC4 &raquo;</TD></TR><TR><TD CLASS="quote">my pvc/pcv valve for my 1994 integra LS isnt going in all the way into the black box thing on the block. its almost all the way in. i just need to know if this will affect my cars performance. please help!</TD></TR></TABLE>


the black box is the factory oil catch can.

 

the question is still up. i dont know what to do. it doesnt seem like i can just shave it down and let it slip in. i need your professional help. thanks in advance

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AL ASPIRATED &raquo;</TD></TR><TR><TD CLASS="quote">fuel is not suppose to be in the crankcase. fuel only goes into the combustion chamber. PCV is POSITIVE CRANKCASE VENTILATION. it allows the crankcase to breathe, letting out oil and moisture. if there was no PCV then the crankcase will build too much pressure and somethiung will damage </TD></TR></TABLE>

In a perfect world/engine fuel wouldn't get into the crankcase, but it does, it called blow-by! Do a leak down test on your engine and take off the oil cap, what's that noise you hear. It's air leaking down through your rings! I bet maybe, just maybe, that air and fuel might just get past the rings when the engine is running.

You never took the oil cap off a car and it smelled like gas??

Oil is supposed to be caught in the breather box, not recirculated through the intake manifold. The PCV helps keep the oil in the breather box.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RSVTECDC4 &raquo;</TD></TR><TR><TD CLASS="quote">the question is still up. i dont know what to do. it doesnt seem like i can just shave it down and let it slip in. i need your professional help. thanks in advance</TD></TR></TABLE>

You just have to get it in. I wouldn't shave it down or anything like that. Try pushing it in with pliers after you put the hose and clamp on it.

 

It is not gas going back through it. Ever see an oil catch can? It catches oil vapors that travel back up and into the intake manifold. Hense the name OIL CATCH CAN. If there was gas traveling back up and getting cought in catch can youd see 2 different liquids (seperated, gas ontop of oil) in the catch can. You dont.

 

there is fuel vapor in PCV thats not a question but plugging the system will caus the pressure to go out somwhere else caus it will vent somwhere but usuallt its somthing like a rear main seal and or oil pan gasket so if u plug it then u get to replace a bunch of gaskets so make sure to keep it vented. u can vent it to atmosphere if u want it wont hurt the car it will hurt the enviorment and u might not be able to run at some tracks caus u can leak oil on the track.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cstay &raquo;</TD></TR><TR><TD CLASS="quote">there is fuel vapor in PCV thats not a question but plugging the system will caus the pressure to go out somwhere else caus it will vent somwhere but usuallt its somthing like a rear main seal and or oil pan gasket so if u plug it then u get to replace a bunch of gaskets so make sure to keep it vented. u can vent it to atmosphere if u want it wont hurt the car it will hurt the enviorment and u might not be able to run at some tracks caus u can leak oil on the track. </TD></TR></TABLE>

Anybody else agree with him

 

i think my oil pan gasket blew out today. i replaced my pcv valve recently w/a POS that didn't fit either (it wasn't oem and was black, not red).