white smoke but not typical?

[Mephisto]

alright well i got the white smoke issue...

when i pull the oil filler cap off its puffin like a chimney. so today i pulled off the upper IC and theres all kinds of oil sitting in the bottom of the TB. the PCV valves are shot so i pulled those out too.... i got the turbo to IC hose off and started it up... its puffin smoke out the oil filler out the breather on the drivers side... both pcvs on the pass. side and then when i revved up the engine it was spittin oil out the turbo????

the weird thing is that when i ran datamaster on it, it was fine. stock 15psi and 0* knock... so i dont think its the rings... could it just be bad valve seals leaking oil? or worse the guides are shot and i gotta take the heads off?

any engine gurus wanna toss in their :2cents: ?

 

[syclone0209]

Re: white smoke but not typical?

im not an expert but it sounds like atleast your turbo is shot if you have oil in the throttle body and its shooting out the turbo. does the shaft have excessive play?
________
Extreme Vaporizer

 

[jjorgensen52]

Re: white smoke but not typical?

im not an expert but it sounds like atleast your turbo is shot if you have oil in the throttle body and its shooting out the turbo. does the shaft have excessive play?

+1 ... my turbo did this when it was on the geo... oil spewing everywhere, exhaust and intake

 

[Mephisto]

Re: white smoke but not typical?

im not an expert but it sounds like atleast your turbo is shot if you have oil in the throttle body and its shooting out the turbo. does the shaft have excessive play?

how do i check that?
<===== retarded

 

[jjorgensen52]

Re: white smoke but not typical?

how do i check that?
<===== retarded

Take the orange elbow (or whatever you've replaced it with) off and grab the nut on the end of the impeller shaft. See if you can wiggle it around. If so, you have endplay :tup:

 

[Mephisto]

Re: white smoke but not typical?

ok well i guess i got endplay? it wiggles around maybe a millimeter or less side to side but not front to back

 

[Don W.]

Re: white smoke but not typical?

its puffin smoke out the oil filler out the breather on the drivers side... both pcvs on the pass. side and then when i revved up the engine it was spittin oil out the turbo?????

OK :2cents: Oil out the turbo is either bad seals for whatever reason, usually bearings. Or clogged/carboned up drain line preventing oil from draining from the turbo forcing the seals to leak. Oil coming out the driver breather and the pas PVC connections is a good indication of excessive blow by. Do a compression check, check your plugs. If yur lucky it's just the engine trying to get rid of all the oil the bum turbo gave it, if you're lucky. Might wanna pull the upper IC and give it a through cleaning otherwise it'll be dripping oil into the TB for a while. :2cents:

 

[jjorgensen52]

Re: white smoke but not typical?

ok well i guess i got endplay? it wiggles around maybe a millimeter or less side to side but not front to back

yeah, thats endplay. not too bad though. the center section bushings are wearing out and allowing oil to pass through into the compressor, which explains your oil smoke. BTW, my truck had 1/4" end play and the turbo was still making 10 - 12lbs, lots of oil though :rotf:

 

[Mephisto]

Re: white smoke but not typical?

Do a compression check, check your plugs. If yur lucky it's just the engine trying to get rid of all the oil the bum turbo gave it, if you're lucky.

would the truck still run strong and have no knock if the rings were shot and i had excessive blow by? it wont build boost at the line... but once it gets going it holds 15psi no prob.

i think the turbo could just be another problem on the list, cause it idles like shit after i just did a full tune up. i dont think the turbo is leaking enough oil back into the engine or through the intake to make it run that bad.

 

[jjorgensen52]

Re: white smoke but not typical?

would the truck still run strong and have no knock if the rings were shot and i had excessive blow by? it wont build boost at the line... but once it gets going it holds 15psi no prob.

goes with the failing bushings thats causing the endplay, your compressor wheel can move around and is thus eroded at the edges and isn't working as efficiently anymore

 

[gjp]

Re: white smoke but not typical?

sounds like my truck. wont idle, only will make a few lbs at launch, holds 15psi during the run, runs strong, and I have some blowby. I might have the starting of your problems... let us know what you find. It might help me with my Sy.

 

[Mephisto]

Re: white smoke but not typical?

well i guess i wont know whats up for sure until i get a leak down test... id rather spend the money on that and know whats eff'd up for sure, than play guessing games throwing money around on shit thats not broken.

 

[cheatham2492]

Re: white smoke but not typical?

Do a leak down test. Could be a broken ring.
Happened to me
Cheatham

 

[Mephisto]

Re: white smoke but not typical?

the truck would still run strong and make full boost with a broken ring??

 

[berzerker]

Re: white smoke but not typical?

thats the same way my engine was with broken rings in two cyl. 's lot's 'o' smoke out of the breathers or pcv 9 out 10 time mean's rebuild time . my truck still ran half way good when it was cold outside. but looked like my engine was on fire from all the godamn smoke .

 

[Don W.]

Re: white smoke but not typical?

the truck would still run strong and make full boost with a broken ring??

Depends on which ring is broken. PITA I know but do that leak-down/compression test. Also cut the oil filter and look for aluminum. Aluminum = broken piston, prolly a ring land to go with the broken ring. Sort-of a chicken and egg thing. As much as we'd like this won't go away on it's own sorry to say.

 

[QUICK STORM]

Re: white smoke but not typical?

what kind of vacuum is the motor makin?

 

[93ty475]

Re: white smoke but not typical?

alright well i got the white smoke issue...

when i pull the oil filler cap off its puffin like a chimney.

First thing that comes to mind is blowby....It could be a collapsed/cracked piston skirt, hole in a piston or a ring problem....I dont think a blown head gasket would cause blowby but I may be wrong....

so today i pulled off the upper IC and theres all kinds of oil sitting in the bottom of the TB. the PCV valves are shot so i pulled those out too.... i got the turbo to IC hose off and started it up... its puffin smoke out the oil filler out the breather on the drivers side... both pcvs on the pass. side and then when i revved up the engine it was spittin oil out the turbo????

you may have a combination of problems going on here...

the weird thing is that when i ran datamaster on it, it was fine. stock 15psi and 0* knock... so i dont think its the rings... could it just be bad valve seals leaking oil? or worse the guides are shot and i gotta take the heads off?

any engine gurus wanna toss in their :2cents: ?

Datamaster will only tell you so much....I've had a knock sensor fail in a way that it won't report knock counts....doesn't sound like bad valve seals to me as valve seals usually go bad progressively, not one day to the next....bad valve seals usually give you a blueish puff of smoke out of the exhaust on startup after the truck sits for any measurable amount of time....



The following is just a scenario:

Say for instance you turbo is puking oil and killing your octane rating...so now your 91 octane fuel is 85 octane....then you throw 15 psi of boost at it and the possibly non-functioning knock sensor can't report knock counts and tell the ecm to pull timing when the motor detonates....You do this long enough then the detonation leads to piston/engine damage.... this could happen....these motors aren't very forgiving...




I'm not trying to scare you....Just giving you the syty reality....Expect the worst and hope for the best.....Do what Don said...run a compression check....compression testers are cheap....Personally, I would be making sure your knock sensor is functioning properly....Just fire up datamaster, start the truck and tap around the area of your knock sensor at the rear of the engine with a long extension and verify that your knock sensor is registering knock counts on the screen....If you find that the knock sensor isn't working, get a replacement one which you will need to buy anyway....Install it and run the same test again until you get knock counts on the screen....It would suck to have a bad knock sensor, then repair the motor, reinstall it and be back in the same boat two months later....good luck man....