Lots of smoke, need help with diagnosis with compression numbers.

[Snail Tuning]

ok i was driving to school and i was doing a WOT pull to get across a highway.

at like 5k the car started to stumble, and then took off like normal. then when i shifted a huge cloud of smoke.

i couldn't even see the back of my car there was so much smoke, no noises, or extreme power loss. just tons of smoke.

so i coasted alittle, then put it into 2nd to try and make it up a hill, and it was putting out lots of smoke, but hardly any at idle.

so i pull into a church, and check stuff out.

nothing seems out of place, but the line to the wastgate was off.

but i was keeping an eye on the boost and stuff, and it never jumper or hit anything over about 10lbs on the factory gauge.

i get towed home, and i started the car up to let it warm up.
did the compression test.
cylinder 4 farthest from timming belt to cylinder 1 closest to timming belt.
128/118/125/130 anyone else have numbers to compair these with
engine has 144k on it.

im ganna run cylinder 3 again to make sure i let it fill up all the way.

Ok on a side note.

last night, i was test fitting an intake pipe i was making. i found a hose that wasn;t hooked up. its the other like that plugs into the intake tube, not the crank case relief but the otherone. so i hooked that up.

also, i was doing a boost leak test, and i couldn;t get more then 10lbs, and i had a loud air leak noise comming from around the turbo. but the air wouldn;t just rush out, it would take alittle to come down from 10lbs, and if i unhooked the fittings it would drop to 0.

so i think its my turbo seals.
but when i was at the church, i pulled the intercooler hose off the turbo outlet, and didn;t feel any oil in it, it felt kindove wet, but no dark oil color or anything.

so im ganna check the charge pipes again and see if there is any oil in them.

any sujestions would be great

 

[Snail Tuning]

a side note.

all of the sparkplugs look the same, and there is no oil on them.

black carbon around the base of the plug, and white sut on the tip.

 

[BMWHATR]

pull off your intake pipe and check your turbo for leaks and shaft play. Sounds like you blew the turbo i had execly say problem with my.

 

[oldman]

Those compression numbers looks like your problem is more than the turbo, were they wet or dry. What color was the smoke? The open nipple on the intake pipe will make you run lean but hopefully some of that was off set by the boost leak but I still suspect you were running lean. The biggest problem you have is the wastgate hose, get a real boost gauge, you probably gone over 20psi and you didn't know it. Good luck.

 

[Snail Tuning]

the plugs were dry with no signs of oil.

black carbon on the base, with white sut usually means rich. from what ive been told.

also the turbo has the usual crack above the wastegate, and there were 3 exhaust studs not installed, because 2 were broke off when i got it, and the 3rd didn;t fit right.

so it had plenty of leaks. it was weird tho because as soon as i put that hose back in the intake pipe, thats when these problems started to happen.


also wouldn;t i have seen fuel cut long before 20lbs of boost? it was very cold thismorning around 10 degrees, and i was keeping an eye on the boost agauge. i wasn;t boosting until this happend due to the poor road conditions.

im going to post some pictures of the turbo.

can the car be started and ran to see if the smoke is comming from the engine with the exhaust manifold out?

the engine should still suck enough air through the turbo, and charge pipes to run. i was just wandering if anyone has tried this before?

 

[oldman]

I meant wet or dry compression test. Sounds like you have a lot of issues with your car, exhuast leak, boost leak, wrong o2 reading, low compression, possible blown turbo seal..etc. Which nipple exactly are you speaking of on the intake? The BOV return or the one that goes to the canister? How do you have it hooked up now?

 

[Snail Tuning]

Update

i started the car with the exhaust manifold off and oil started squirting out from the center exhaust stud. on the bottom side; and i mean lots of oil.

the stud came out when i pulled the manifold off. most of them did, so i bought new ones to replace them.

is this normal? should oil squirt out from that hole if no stud is installed?
and could this have been causeing all of my smoke?

the vac line that runs to the canister was not hooked up until yesterday.

the exhaust leak shouldn't cause to much of a differance, as it wasn;t very noticable, just was robing alittle power. i rewired the fuel pump, so its putting out alittle more than stock, so i figure the car has been running rich because of this. ive been getting about 19-20mpg, car recently got a new radiator, hoses, and fan sensor.

The Compresion Test I would asume this would be a dry test
i idled the car till it warmed up to the first line on the temp gauge. i them turned it off. pulled one plug at a time replacing it after each test. put the comp gauge in, and turned the engine over till it stopped climming pressure.

we got low readings on a honda civic using this gauge so it could be the gauge. we were getting 78/80/79/80 on a d16z6 with vitara pistons.


also the exhaust ports are dry, no signs of oil residue on them.

 

[Snail Tuning]

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[huafist]

You never answered whether it was a wet or dry test and what color the smoke is. Why on earth did you take the exhaust manifold off?! It shouldn't have anything to do with it. Oil was squirting out like crazy because you just opened one of the head's oil galleys by taking that stud out. Your compression numbers are low, and you have one cylinder below service limit (121). Without knowing what color the smoke was we're flying blind here.
If it's white smoke, your head gasket is toasted and needs to be replaced.
If it's bluish smoke, your rings are probably fried. Drop a capful of oil in each cylinder and re-run your compression test. If your numbers go up significantly, your rings are the issue.

 

[BMWHATR]

change the size of the pictures its now showing anything

 

[oldman]

Make sure you open the throttle all the way during compression test.

 

[Snail Tuning]

Update
The Compresion Test I would asume this would be a dry test
i idled the car till it warmed up to the first line on the temp gauge. i them turned it off. pulled one plug at a time replacing it after each test. put the comp gauge in, and turned the engine over till it stopped climming pressure.

Smoke was whiteish with a blue grey tint. definatly oil, due to the color and smell. smelt like burnt oil, not sweet like antifreez.

the manifold was pulled off, when i first got the car because the old manifold had 2 cracks in it and was leaking. so i replaced it with one that doesn't leak.

i pulled the manifold to be able to take out the turbo the second time. which has everything to do with it. I also wanted to change the studs, and pull out the broken studs so i got a better seal.

the smoke was not noticable at idle, and with the manifold of, no smoke came out of the engine.

ps for some reason the pics aren't working all the time. if they don't show up, right click properties, and copy the link.

 

[Snail Tuning]

Make sure you open the throttle all the way during compression test.

ill try this after i get the manifold back on, and unhook the fuel pump. i disabled the coil pack the first time. ill rerun my comp test, with the car warmed up, and the fuel and ignition disabled, and the throttle held open. hopefully ill get higher numbers.

 

[oldman]

ill try this after i get the manifold back on, and unhook the fuel pump. i disabled the coil pack the first time. ill rerun my comp test, with the car warmed up, and the fuel and ignition disabled, and the throttle held open. hopefully ill get higher numbers.

No need to disconnect the pump, just pull the MPI fuse.

 

[Snail Tuning]

ok so i warmed the car up. and did a dry test with the gas peddle down.

new numbers are. cylinder 4, farthest from timming belt to cylinder 1 clostest
148/138/138/150

these are higher number, but im not sure if 2 and 3 are having problems.

let me know if these numbers look better.

also after i put the manifold back on, and started the car, it started smoking again. but when i had the manifold off, i had no smoke.

hopefully its the turbo, but i wanna be 100% sure before i buy one.

 

[huafist]

Sounds like the turbo. Have you checked it for shaft play?

 

[oldman]

Now do a wet compression test, you should have done that right after the dry.

 

[Snail Tuning]

i tested the 2 low cylinders and they increased by 1psi each. with the oil added.

i then turned the car on with the manifold off. and burnt all the oil out.

next i ran the car with the garage door closed to see if any smoke came out.

noting more than i would expect an engine with no exhaust to make.

so i figured. what the heck. ill pull the turbo off, cause thats what seems to be the problem.

and look at what i found.

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well this could explane the rich or lean condistions.

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I really hope this is the problem otherwise im screwed.

there is no shaft play. so i was fooled the whole time, just checking the compressor side. it even sounded normal because the compressor turbine was still spinning freely

 

[huafist]

None of your pictures are working.

 

[oldman]

You found an "X" in your turbo?

 

[Snail Tuning]

they work for me...........



link to imigstation. must me a member

 

[oldman]

If your manifold looks nothing like that, it's your turbo. I thought you said there were no oil in the intake?

 

[86MCSS]

Was that stud always missing on your exhaust manifold? On my 90 talon the stud was stripped out when i got it and was held on the car [epoxy] to make it look like nothing was wrong ...needless to say it fell out after driving a couple of hours and oil spewed out of the head onto the turbo and it smoked like a big dogg. I thought the engine blew up. Check for oil leaks onto the exhaust before thinking your engine blew up.

 

[Snail Tuning]

If your manifold looks nothing like that, it's your turbo. I thought you said there were no oil in the intake?

HUH??

the pictures i posted are of the o2 housing, and the turbo exhaust side.

the exhaust manifold, and charge pipes are free of oil.

thats why i suspected blown piston rings.

the compressor side feels fine. and isn't covered in oil. it actually looks and feels normal.

but as you can see from the pictures the hot side turbine has been totaly disinigrated. or it snapped off and blew out my exhaust. mangeling my o2 sensor on its exit.

i have never seen this before. thats why it stumped me. i mean first thing you check is play in the turbine. and oil in your charge pipes. i had neither.

 

[oldman]

Well we only got to see the turbine outlet pic, that's why I asked if the manifold looked like that. (coated with oil) If the other picture contains a broken turbine shaft mangled in the o2 then it is the turbo.