my CA is smoking .....

[yourmomsrps13]

after sitting idling for more then 5 mins(warmed up and driven) smoke starts coming out the exhaust. turbo seals? valve seals? head gasket? hope its not the freshly rebuilt turbo i bought.i run royal purple 10-30 and just changed my oil after 1500 miles cause i had a hint gas smell from my oil.

[AmoebAssassin]

after sitting idling for more then 5 mins(warmed up and driven) smoke starts coming out the exhaust. turbo seals? valve seals? head gasket? hope its not the freshly rebuilt turbo i bought.i run royal purple 10-30 and just changed my oil after 1500 miles cause i had a hint gas smell from my oil.

Gas in oil = excessive blowby = bad rings.

[yourmomsrps13]

damn i was thinking that and didnt even wanna say it, probly dead on with that though...in the morning it idles low and hard to start, then it sputters and wants to stall when i give it decent amout of gas and nearing 1 psi of boost.if it is my rings, how bad is it to drive my car and can anyone point me in a direction to get everything i need to rebuild my motor

[rico05]

No, gas in oil = cylinder wash. You may be running too rich. With the car warm I dobut that the valve seals are toast. Me thinks it may be turbo oil seals.

[yourmomsrps13]

hmmm, and i just bought this turbo freshly rebuilt with 1600miles on it from a well know member here.

i thought it was running rich cause i smelt gas out the tail pipe and it would pop a flame when its cold and reving, also while driving hard at shifts and down shifts acompanied by black smoke.

[c-rad]

Do a compression test. That will eliminate or confirm your suspicions about the rings. Next, if the car only smokes after idling for a few secs and goes away while driving then you can suspect the valve stem seals. Lastly, if none of that fits, remove your O2 housing and see if there is oil coming out where the turbine wheel is.

[rico05]

Right, valve stems seals will only smoke on startup. Since your issue is after running, that is what is making me think turbo. But def do a compression test if you are worried, but I wouldn't be.

[Bwana]

Fuel in oil is generally a result of either way to rich (cylinder wash) or some issue with an open injector spilling fuel into the engine after shutdown (or could be both I guess). Typically a valve seal problem will result in smoke on startup and only slightly after long periods of idling unless it gets real bad, in which case you can get a puff at almost any time! I'm with the others in thinking it's probably a turbo seal, but like someone said, take the o2 housing off and have a look. If you're getting smoke and the leak is there, you should be able to see signs of it.

[c-rad]

Right, valve stems seals will only smoke on startup. Since your issue is after running, that is what is making me think turbo. But def do a compression test if you are worried, but I wouldn't be.

No no no.... valve stem seals leak after the car has been idling for a while. Then when you step on the gas, a little puff of smoke comes out. Under driving they don't leak because cylinder pressures keep oil from seeping past the seals. Yes, you MAY see smoke if you are driving the car for a while, then park it, THEN start it back up a little while later. But it's mostly noticeable when sitting at a red light or other idling situation.

[rico05]

See, i thought that the valve seals leaked during startup (that is what I had always been told) due to the fact that the old seal expands after the motor is warmed up.

I guess it was internet hearsey.

[Bwana]

I think it depends some on the actuall seal type and the head design. I had a ford escort that would smoke like a chimney on startup but not at all after it was warmed up, and it was the valve seals.

[yourmomsrps13]

well it didnt happen to today at all and i was unable to do a leakdown, tomorrow first thing. yesterday when it happened i started my car before leaving work then after it was warm i drove 5 mins home and then let it sit idling for 5 mins while talking to a buddy and thats when i saw it btw its 29* here if that means anything.

[boost_boy]

Rarely do standard CA18s have valve stem issues. Rarely do CA18s have broken ring issues. Rarely do CA18s have ring issues so bad, that they let oil get into the combustion chamber. When the rings on the CA go bad, the engine like spit-up oil under hard driving situations. When the CAs are having head issues, they leak coolant or oil. When the CAs have smoking problems, it's usually the turbo that's the culprit. It doesn't matter if it's a rebuilt piece or brand new blower, sheet-happens. My turbo smokes and it has under 6k miles on it, but it only does it when I shift under aggressive driving situations. Look at the turbo before you go suspecting anything else. Don't worry about leak down tesing. That's a last resort!

Dee

[BLKTOPS14SR]

My brothers CA has been doing the same thing. Blowing smoke out the exhaust. His turbo however we know is bad. Its leaking oil out all over the firewall and exhaust. But here lately his car hasn't even been wanting to stay running. We think it could be the idle air control valve on top the intake. But not for sure. Does anybody know what it could be?

[boost_boy]

My brothers CA has been doing the same thing. Blowing smoke out the exhaust. His turbo however we know is bad. Its leaking oil out all over the firewall and exhaust. But here lately his car hasn't even been wanting to stay running. We think it could be the idle air control valve on top the intake. But not for sure. Does anybody know what it could be?

I hate to say it, but it can be a bunch of reasons. AIV valves don't just fail without warning you first. The topic is just too vague to give an appropriate answer.

Dee

[yourmomsrps13]

i did a compression test and #3 has low compression but not too bad i forget the #s, however we dropped the idle down and thats when it started smoking so im 99% sure its the turbo. im looking at getting a s15 t28 with z32 maf for 600$ but its another used turbo. my other route is to get a turbo form cheapturbos.com

[Rookieca18det]

Or you could buy my setup for $1100 ....or make me an offer .I need money for a bike. Good luck with your car woes.

-richard

[OmarM]

sounds like a turbo seal to me. My car had same problem, but put in s15 t28 and problem went away

[yourmomsrps13]

yep! and hey thats what im replacing my t25 with

my optionshttp://store.yahoo.com/cheaptu....htmlor http://www.frsport.com/s15-sr2....htmlsame turbo, different companys.guess i should check shipping costs
Modified by yourmomsrps13 at 9:00 PM 2/18/2006

[fitch9014]

yep! and hey thats what im replacing my t25 with

my optionshttp://store.yahoo.com/cheaptu....htmlor http://www.frsport.com/s15-sr2....htmlsame turbo, different companys.guess i should check shipping costs

just out of curiosity, do you need to run the z32 maf w/ that turbo, or could you run it on the stock maf?

Modified by yourmomsrps13 at 9:00 PM 2/18/2006

[yourmomsrps13]

woah you quoted me and YOU ha, good question but if your gonna use that turbo might as well use the z32 maf....i em