![]() |
|
|
|
Registered User
Join Date: Jun 2012
Location: Montana
Posts: 199
|
PCV Valve?
Alright guys, I've been trying to figure out why my intake is getting oil in it, excessive amounts too. I don't know why i never realized this but why do our cars not have PCV valves? am i the only one without one?
I've tried google and searching all over for 928 PCV valves and cant find anything. 2 main reason why im concerned here A: I'm burning oil in the combustion chamber and would really rather not... B: One of Dwaynes writ-ups about intake refresh clearly shows him holding a small PCV valve, and he even notes that is is in fact a PCV valve in his write up. This is his write up, go to it and hit ctrl + f and type "PCV valve" to go to the pictures showing him holding it in his hand. WHY DOES THIS ONLY EXIST IN HIS WRITE-UP AND NO WHERE ELSE! |
||
![]() |
|
Registered User
|
There is no pvc valve. There is an canister with a separator (where you fill the oil) that handles the crank case ventilation. There should be only relatively minimal amounts of oil burning, but if your other point of reference is a Honda or something like that it would seem like a lot. You may have some tired rings and are getting lots of blow by, that could be an issue.
__________________
1979 928 85 Euro 2v motor,S4 Brakes and suspension, 1988 951 street legal track car(sold) Neon SRT4 track car |
||
![]() |
|
Recovering dismantler
|
Tell us what year your car is, and we can help you! If it is a 16v, then it doesn't have one!
__________________
Neil 2009 Mini Cooper 2004 Mercedes CLK500 2024 Subaru Outback Touring XT 2020 Entegra Coach |
||
![]() |
|
Registered User
Join Date: Jun 2012
Location: Montana
Posts: 199
|
its and 87 s4. i mean, if i take the side covers off the intake manifold, i can look down into the throttle boddy and see oil literally just pooled in there, how can that be intended, i dont understand
|
||
![]() |
|
Network Native
Join Date: Jan 2007
Location: SoCal
Posts: 10,349
|
Porsche may not really love us.
The short answer is that a LOT of oil gets pumped into the heads at higher rpm, and is not managed well on a stock 928 engine. Various tricks seem to work depending on the use of the motor, normal street a Provent and a change to the block drain seem to work well, racing may require some active pumping out of the oil and/or dry sumping. New Crankcase Breather Scrubber System |
||
![]() |
|