ok, so ive been going through oil pretty badly, so i take off the intake, look in the tube, looks like theres some weird residue that i can barely see on the inside of the tube, now when i look into the mani, i see a dirty flap or whatever thats called, pull the throttle cable and all i can see is what looks to be dried up oil all over the inside of the manifold, all it could be is the pcv right? the only thing that throws me off is that the top of the valve cover has that shield on it so no oil directly goes anywhere near the pcv, though it could work its way there at wot or splashing around in a corner i guess. so basically there should be no reason for the inside of the mani to be dirty like that is there?

 

Oil consumption can be caused by a faulty PCV valve. However if it's rather excessive as you describe ("pretty badly" - how bad?) then it's likely something other than your PCV.

The PCV valve is there to route crankcases back into the intake manifold which is then sent back into the engine to be burned again to reduce emissions. The vapors from the crankcase eventually settle on the inside of the manifold and periodically, one should remove the intake manifold and have it cleaned. So the intake manifold insides being oily is "normal."

Others have just opted to delete the PCV or allow it to vent to the atmosphere. This of course is recommended only for track use...

 

^ Doesn't the PCV still need vaccum pull to function correctly?

 

If you're venting to the atmosphere, the PCV does not even require to be present for the process of crankcase ventilation/recirculation to function.

 

Good to know.

 

thanks for the info ragingangel, its kind of sparatic consumption, i check the oil everyday, and check it after long trips or hard driving, and its never consistant. also i dont really even have a pcv VALVE, theres a port there, with no valve inside it, i can slide a pen all the way into the vc, thats why i thought the oil was maybe sneaking through there. i have some pics on my old mans computer. and also where the vaccume line goes into the intake is where the residue started and went towards the mani, and its kind of greasy when i wipe it with my finger, is that normal? or is it usally just dirty? ive never actually taken a look insid the intake mani but my friend was also just telling me that its normal to have some shyte inside there, its pretty dirty in there tho, needs to be cleaned either way.ill post a pic when he gets home and hooks up the password.

i would just omit the vaccum line and vent to the atmosphere just to check levels for a couple days, but the man took my licence for a while, and i have 39 days left, so im trying to get some things done.

 

itrs burn oil... mine burns a pint everytime i drive it hard and hit vtec systematically, or everytime i drive long trips fast

 

yeah, my car isnt just burning a bit of oil tho, if i really wanna run the car hard, i can go through a quart in the afternoon. nobody better try telling me THATS normal. but its not really smokin blue, unless i just cant see it over the jdm smoke from the rich ecu i have a graph started, im trying to figure out if i spend more money on oil, or gas (j/p)


from the testing ive done, i dont think it goes through oil under vtec, if it does, its pretty much unnoticable.

 

From what you've described, I don't think you're looking in the right place for the PCV.

You state you don't have one because you can slide a pen right into the "vc" (I assume that's the valve cover?).

If that's the case then you are definitely not looking at the right part. You must look at the base of the intake manifold where it attaches to the head. You should see a small RED valve with a black hose that snakes up into the middle of the intake manifold's plenum.

It is held in place by a small rubber grommet and can be removed by tugging on it. Once complete freed, shake the PCV valve and if you hear a rattle, then it means it is functioning properly. Some opt to clean the valve by squirting in some brake kleen.

I suggest doing a compression and leakdown test. You should adjust your valves prior to this procedure if you know this process hasn't been done in a long time.

**On a side note, compression on my friend's ITR was so bad before, we considered tearing off the head until we took notice of his noisy valvetrain and once adjusted, we didn't even bother checking the comp. again since the power was brought right back up.

 

Yeah I was told that burning a quart every 1200 to 1500 miles was "normal". theres no way that your burning a quart in an afternoon of hard driving is normal. I just picked up my car tonight from the dealer. They had my car for over 2 weeks they ran a compression and leak down test and found that each cylinder had a leak. They found scratches in the cylinder walls. Damage was so bad they had to replace my short block.

 

thanks for the info guys, i appreciate it. Im on my way to buy some leakdown and compression guages. this is gay. for some reason i thought the pcv was supposed to be the port sticking out of the vc (valve cover) and connecting into the intake vaccum hose. ive been schooled by ragingangel