i need to replace my valve seals, has anyone done this firsthand?? Options

[forkee]

k so i thought it was my turbo's fault the first time i was burning oil cuz when i took it off and ran stock, i didnt get any smoke. after getting the turbo rebuilt, it fixed the oil leak problem, but it was smoking again. turns out the added pressure is letting oil get past the seals onto the stems and burning out the back. and its really bad too. i added some "no smoke + stop leak" stuff, and it helps on the low end, but when i really punch it, i still get A LOT of smoke. i mean it clears the freeway about 50 feet behind me.

so my question is, has anyone replaced theirs or gotten it replaced?? i need to get this done asap because its really starting to bug me. plus its deterring me from boosting because i can never go full throttle. if anyone has had this done, how much did it cost for either DIY or for a mechanic to do it, what parts will i need, and where can i find those parts.

thank you

[erics1one]

I know our engines our different, but the application should be the same. The blue hose on top is the PCV Valve, the blue hose sticking out sideways is the Crankcase Vent. The blue silicon hose coming out the other end of the catch can runs to my turbo intake.

Your engine runs best when their is a slight vacuum at the crankcase at all times. Blocking off either of these with either a breather, or a cap, is bad news with a turbo application (not sure if its okay on NA) since the turbo creates more pressure by nature.

The catch can will 'catch' any fluid coming out of your PCV or crankcase, preventing it from entering your turbo. If your engine is in prime condition, and you have the proper PCV system, you shouldn't need a catch can. When thats not the case and you begin to get excessive blow-by, normally the moisture would recirculated back into your system (which isn't entire bad...but obviously annoying).



To be honest...I don't think you're problem is the PCV system. A 50 foot clearing of smoke is probably a larger problem. But if it only occurs when you punch it (ie. boosting max) then its probably turbo related. Could be too much pressure into the turbo and not enough clearance on the way out (ie get smaller feed, and larger return line).

If you "punched it" when it was NA, and you didn't get any smoke. Then its gotta be the turbo.

This post has been edited by erics1one: Jan 14, 2005 - 5:47 PM