BOOSTED88tsi Posted January 18, 2011 Report Share Posted January 18, 2011 So up until thursday my car was 100% perfect. Went to go get lunch, waited for the car to warm up and then romped on it til about 5500 or so. Got lunch, went back to work no problems. I got off 2 hours later started it up to let it warm up and saw some smoke coming out from under the hood. Popped the hood and my rear Krankvent was poofing a little bit of oil smoke every couple of seconds. Started driving the car and it filled up the interior with the more rpm/boost, if any was applied, seems to go away on decel... Got home took off both krankvents and the pcv. Sprayed them out with carb cleaner and threw everything back together. Still smoked. Now i just got the stock seperator setup from a junkyard, but ive never seen a car smoke like this before and i don't belive the stock seperator is going to elimanate the problem. The car is not smoking from the exhaust, only the valve cover. I'm thinking a valve steam seal maybe? Haven't had time to pull the v/c and im going on a buisness trip tomorrow, just trying to get a list of stuff to check out when i get back. Car is a 88, with hardpipes, bigger ic, 12a, marnal head, stock bottom end. Cliff notesCar came with krankventsDrove car hard, was fineStarted up after driving hard 2 hours later, smokes comes out of rear krankventCleaned krankvent, no changeInstalled stock pcv valve and hose, kept rear kranvent still smokesNo smoke from exhaust. Link to comment Share on other sites More sharing options...
MoltoMario Posted January 18, 2011 Report Share Posted January 18, 2011 The fiji only like meeeeeeeeeee Link to comment Share on other sites More sharing options...
TRACK BEAST Posted January 18, 2011 Report Share Posted January 18, 2011 Mine had the same prob. Before. I just swapped my head to a njv and it became better. No more smoke. Could be cracked or the valve seal Link to comment Share on other sites More sharing options...
Indiana Posted January 18, 2011 Report Share Posted January 18, 2011 Blowby in the crankcase hasn't vented out yet from your hard pull and oil laying all over the inside of the block when its hot and the pistons are hot and there's oil in there ya it can smoke. With those check valves you have, no fresh air ever is ventilated through the crankcase so all that crap lingers around in there until its blown out or you suck it up through the PCV valve. Its concentrated crap. Its contaminates your oil. Some of that blowby is unburnt fuel. Link to comment Share on other sites More sharing options...
BOOSTED88tsi Posted January 18, 2011 Author Report Share Posted January 18, 2011 Im going back to the stock setup, but that hard pull was 3 days and 100 miles ago. It just smokes all the time now except for on decel.When i get back im going to do and oil change as its due for one and put the seperator back on. Link to comment Share on other sites More sharing options...
Komeuppance Posted January 18, 2011 Report Share Posted January 18, 2011 Could be a few things, all of them bad. Cracked ring lands. Cracked head. Blown head gasket. Do a compression test... -Robert Link to comment Share on other sites More sharing options...
MoltoMario Posted January 18, 2011 Report Share Posted January 18, 2011 Could be a few things, all of them bad. Cracked ring lands. Cracked head. Blown head gasket. Do a compression test... -Robert Doubt its a blown HG. Scotty and I replaced it with a brand new Ajusa like a week before Vegas Nats. So it has like 4k miles on it maybe a tad more that Jasons driving the car now. When we replaced the HG and all the Timing stuff we took a peek at the head and it had one tiny crack between the valves on cylinder 2 I think. Just barely noticeable. Nothing big enough to worry about. But its was pretty crappy cuz that NJV Marnal head has maybe 25k miles on it. Link to comment Share on other sites More sharing options...
Funky Phil Posted January 18, 2011 Report Share Posted January 18, 2011 crack between the valves on cylinder 2 I think. Just barely noticeable. Nothing big enough to worry about seriously? I assume you pressure tested it with your eyeballs Link to comment Share on other sites More sharing options...
Shelby Posted January 18, 2011 Report Share Posted January 18, 2011 take the oil fill cap off and look at the bottom of it,,is there water or moisture on it oil burning will go out the exh,and some may go out the valve cover vent,,but coolant leaking into the engine from the tbi base gasket or the timeing cover will not smoke out the tail pipe but only the valve cover vent broken ring or burnt piston will deff smoke durring hard decell whats the oil look like Link to comment Share on other sites More sharing options...
BOOSTED88tsi Posted January 18, 2011 Author Report Share Posted January 18, 2011 take the oil fill cap off and look at the bottom of it,,is there water or moisture on it oil burning will go out the exh,and some may go out the valve cover vent,,but coolant leaking into the engine from the tbi base gasket or the timeing cover will not smoke out the tail pipe but only the valve cover vent broken ring or burnt piston will deff smoke durring hard decell whats the oil look like Just put the stock oil seperator on. Smoke is waaaaaaaaaaay worse. Doesnt smoke at idle. But under load there is small amounts of smoke and when you go from boost to decel it puts out a fat smoke screen. Going to get a friends compression tester in a bit. No water or moisture on the oil cap No water in oil after i hooked up the sepeator theres an film of oil around where the turbo connects to the exhaust housing, that wasnt there before. Link to comment Share on other sites More sharing options...
Indiana Posted January 18, 2011 Report Share Posted January 18, 2011 Did you take those check valves off and are using an OEM PCV valve? If its an aftermarket valve yes it will smoke. If the PCV valve was leaking crankcase pressure and the little valve after it was stuck, and they do that's why you have to clean them, the the pressure can effect the turbo drain and that means oil passes around the turbo seals and it smokes. Is there a chance a valve seal came off? If it did it will smoke. Link to comment Share on other sites More sharing options...
BOOSTED88tsi Posted January 18, 2011 Author Report Share Posted January 18, 2011 yes oem pcv is on it, no more check valves. going to do a compression test and pull the valve cover in a bit. All plugs out for the comp test correct? Also does cold/hot engine matter? Link to comment Share on other sites More sharing options...
Indiana Posted January 18, 2011 Report Share Posted January 18, 2011 No, just hold the throttle open and take the coil wire off the dist. cap and lay it on the negative battery post and unplug your primary injector. Maybe your turbo died. Link to comment Share on other sites More sharing options...
Shelby Posted January 18, 2011 Report Share Posted January 18, 2011 did you actualy test the pcv before installing it,, and most guys install'd an orfice in the oreg pcv hose,, you need to remove that Link to comment Share on other sites More sharing options...
Scotty Dont Posted January 19, 2011 Report Share Posted January 19, 2011 did you actualy test the pcv before installing it,, and most guys install'd an orfice in the oreg pcv hose,, you need to remove that The pcv valve came off of my motor it was in perfect condition, cleaned and test before we threw it in. It isn't coolant, and it gets worse as he gets in boost. I have not seen the car since he put the oil sep setup on. Link to comment Share on other sites More sharing options...
Technology Posted January 19, 2011 Report Share Posted January 19, 2011 It's not coolant steam, it's oil, right? So what is burning the oil in the crank case? It's only 7:45pm out there, you should get a compression tester and test it, then report back. Link to comment Share on other sites More sharing options...
BOOSTED88tsi Posted January 19, 2011 Author Report Share Posted January 19, 2011 Have compression tester in possesion, reporting back in an hour. Yes its oil and not coolant. Link to comment Share on other sites More sharing options...
Technology Posted January 19, 2011 Report Share Posted January 19, 2011 Updates? Link to comment Share on other sites More sharing options...
Skullzaflare Posted January 19, 2011 Report Share Posted January 19, 2011 Updates?its only been 20 minutes, he said hed be back in an hour Link to comment Share on other sites More sharing options...
MoltoMario Posted January 19, 2011 Report Share Posted January 19, 2011 (edited) Edited January 19, 2011 by MoltoMario Link to comment Share on other sites More sharing options...
BOOSTED88tsi Posted January 19, 2011 Author Report Share Posted January 19, 2011 Looks as if number three is gone. Cold comp test results were 150,145,100,145. Squirted oil into number 3 and it bumped up to 140. Can't belive it blew on a 12a but whatevers. Link to comment Share on other sites More sharing options...
Komeuppance Posted January 19, 2011 Report Share Posted January 19, 2011 Cracked ring land?? -Robert Link to comment Share on other sites More sharing options...
BOOSTED88tsi Posted January 19, 2011 Author Report Share Posted January 19, 2011 Something with the rings! I'll find out when after i rebuild scotts extra block hopefully. Link to comment Share on other sites More sharing options...
Indiana Posted January 19, 2011 Report Share Posted January 19, 2011 I would check the valve train first. The rockers on that cylinder. Link to comment Share on other sites More sharing options...
Indiana Posted January 19, 2011 Report Share Posted January 19, 2011 If you find its a burnt piston or broken ring you can blame those Krankvents. Link to comment Share on other sites More sharing options...
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