Help Me Stop Smoking

[drifter_for_life06]

So after doing an oil change...now running 15w50 mobil 1 the car runs amazing.

However after driving if i sit at idle too long it starts to smoke profucely(sp?) if i give it gas long enough it eventually stops......it didnt smoke before the oil change at all.....any idea?

[adrianfromthecastle]

jk..

[wildacexxx]

wat color smoke is it? it could be your valve guides or u can be having blow-by indicating your piston rings. anyway wat color is the smoke

[SR20Essex]

Its valve guides, what he is describing is a dead giveaway. Idle for a bit then it smokes when you give it gas.

Did you add any aftermarket additives? Some of those are thin enough to get through the valve guides even if there is nothing wrong with them. I had that problem when I added some stuff like that. It smoked when I would idle for a min then give it gas. It also smoked as soon as I would gas it if I was going down a hill letting the transmission slow the car. Anything that caused negative crankcase pressure, pulling the additive through the valve guides.

[keith1k]

Sounds more like valve stem seals.

[wildacexxx]

Sounds more like valve stem seals.

oops thats wat i meant. thanx!!! my ka had that problem. i just left it like that for over a year. that thing held up great for a motor that was not properly maintained (by me)

[drifter_for_life06]

any easy solution?

smoke is white

smells real weird

[wildacexxx]

that smell is coolant. it smells sort of sweet and or like syrup. might have blown your hg. do a compression test

[drifter_for_life06]

definately doesnt smell like that....not overheating

[aaronsnocker1]

Your car doesn't have to be overheating to have a coolant leak into the cylinders. It sounds like a blown headgasket/ cracked head(worst case). Usually coolant smoke is white. Oil smoke is blueish and gas smoke is black/grey. At least thats what I think I remember being told in college? Anybody back this up?

[wildacexxx]

your colors are correct. white def means burning coolant. check for coolant in your oil and oild in your coolant

[drifter_for_life06]

hrmmmm

time to investigate

[aaronsnocker1]

I'm pretty sure that if you have coolant in your oil the oil will turn into a milky looking substance. And if you have oil in your coolant you can open your radiator cap and look at the surface for oil. Try sticking your finger or some other porous matierial (paper towel, shop towel) and check for oil residue. Again this is all based off of memory so somebody back this up?

[drifter_for_life06]

so far no coolant in oil

and im waiting for the engine to cool before poppin the cap

[wildacexxx]

maybe ur turbo seals went. that would be great for u if it did. better then doing a hg

[drifter_for_life06]

how would i know if the seals went? She holds boost fine. 7psi like it should be

i probably shouldnt drive it around but seeing as its my only car nowadays i have to

and for the past day or so i havent seen any smoke while sitting in traffic

could some oil have just burnt off or something? would running lean cause white smoke?

[PantherRacer]

so the turbo can smoke if the seals are gone? I think either my turbo is bad or it's not connected properly....though...I don't have the d/p and cat on, just the midpipe. heading out to check my oil right now.

edit: reminds me of what happened in the terk. too much oil. smoked profusely.the 180 has a bit more oil than it needs too. guess I'll let it burn off scince it's not too too much
Modified by PantherRacer at 7:28 PM 7/29/2006

[drifter_for_life06]

panther finally got a car? back on track

yea itll smoke

but i dont know how much or what color

bump for anyone that can give some input on my posts?

[drifter_for_life06]

ive also recently noticed a slight hesitation at full throttle between approx. 2700-3k rpm

[Structure240sx]

what oil were you running before?

if this is a thinner oil (weight and or synthetic or not) it could be getting passed certain seals. i would think turbo seals.

i always ran 10w-30 penziol. normal ****. thin oil scares me

[PantherRacer]

well everyone runs 20W 50 over here. I even used it in the tercel and it was fine.but I'm not gonna buy castrol oil. ever.not made 4 high temperatures and once it hits that magic tempplbbbbbth...loses all viscosity.

but like structure said? what grade is in the car now? and there isn't too much right?

[aaronsnocker1]

Well if it is turbo seals then that is beyond my realm of knowledge. You should try and post this in the mechanic section?

[spider_slayer]

if he was burning oil it would have a definite hue to it. fluffy white smoke is a good indicator of a head gasket. i'd try a compression test. then maybe try a pressure test on your cooling system, see if you can find any leaks.

didn't you have this problem a few months back and replace your thermo?

[safxtacy]

my brother had the same problem with his car turned out he ut to much oil in and the car was burning the extra off he just drained all the oil and put in how much he was supposed to

[drifter_for_life06]

as far as the problem before....i donno what that was....it stopped smoking that time after i removed the thermo b/c it was over heating...now there is no over heating and all that stuff

as far as what oil was in it before....i donno whatever the shop that did my swap put in...probably 10w30?

right now its got mobil1 15w50

[BlkrwdT]

Im pretty sure its your turbo seal is goin bad. Ive had 2 turbos in the past that did the same, smoking during idle and as soon as i give it some gas its gone. Sometime , during idle the turbine shaft doesn't spin, givin low idle and not enough exhaust air to move it, therefor its easier for the oil to creep through the bad seals. As we all know theres no rubber seal in turbo to give it a good seal, so being that its a metal seal thing must be spinning for it to be effective. Anyways, pull off the DP and see if the exhuast wheel is black n wet.

A bad valve stem seal will create smoke at start up. Car parked for a while, oil seeps through seals , combustion burns oil , making smoke. If not then its your turbo seal because the exhaust manifold/ turbo needs to be HOT in order to burn off any excess oil.Hopefully that will analyze things down for you..

[c-rad]

Im pretty sure its your turbo seal is goin bad. Ive had 2 turbos in the past that did the same, smoking during idle and as soon as i give it some gas its gone. Sometime , during idle the turbine shaft doesn't spin, givin low idle and not enough exhaust air to move it, therefor its easier for the oil to creep through the bad seals. As we all know theres no rubber seal in turbo to give it a good seal, so being that its a metal seal thing must be spinning for it to be effective. Anyways, pull off the DP and see if the exhuast wheel is black n wet.

A bad valve stem seal will create smoke at start up. Car parked for a while, oil seeps through seals , combustion burns oil , making smoke. If not then its your turbo seal because the exhaust manifold/ turbo needs to be HOT in order to burn off any excess oil.Hopefully that will analyze things down for you..

Yep, I'm having that problem right now. After the car warms up for about 3-4 minutes it will slowly start to smoke. When I start driving, it goes away. That's what I get for putting a crustyass T25 on there.

[drifter_for_life06]

i think im gonna go the route of the FPbig28 to solve this...get turbo rebuilt and all new gaskets

[drifter_for_life06]

so do you guys think it is indeed the turbo? i dont wanna spend the 800 sending it out if its not the factor

[wildacexxx]

did u do a compression test and leak down? are u still running without a thermo? if u were overheating with a thermo on it could mean hg. do appropriate test's instead of guessing