White smoke

[Lunch_Box]

My girl friends car a while back snapped the timing belt and bent 8 valves to shit. So I replaced the head and timing belt and at the same time put in an Evo 16G turbo that I had kicking around. Well ever since I got it back up and running it has been smoking pretty bad, the smoke is white but smells like oil. It only happens when the car is idling, if you go for a drive there is nothing but as soon as you come to a stop it starts to poor out. I did a compression check and it is 150 PSI across all 4 cylinders, the turbo seems to pull fine to 10 Psi. I am thinking it is the valve stem seals but would like other peoples opinions before I take the car appart.

Thanks

 

[Talon-96]

umm you broke your timing belt usually its time for a new motor after that.

 

[donmagicjuan]

umm you broke your timing belt usually its time for a new motor after that.

What? Why are you spreading misinformation? A failed timing belt usually does not require any bottom end work unless a valve has punched through a piston. Even then, a rebuild would suffice.

To the OP, when you repaired the head, did you replace the valve guides? Sometimes these can be damaged when a timing belt lets go. A boost leak test may be able to tell you if the stems are leaking significantly.

 

[Talon-96]

well good luck, youll just keep having problems.

 

[1993eclipseGS]

PLEASE stop spreading this information in every post, You post in. You DO NOT know what you're talking about... WOW. Are you blind? the head and timing problem has been fixed, And the car is already running, Did you not see that?

White smoke is coolant. It could be a few different things which are causing it.

 

[Lunch_Box]

What? Why are you spreading misinformation? A failed timing belt usually does not require any bottom end work unless a valve has punched through a piston. Even then, a rebuild would suffice.

To the OP, when you repaired the head, did you replace the valve guides? Sometimes these can be damaged when a timing belt lets go. A boost leak test may be able to tell you if the stems are leaking significantly.

I didn't rebuild the head I replaced the whole thing with one that was supposidly rebuilt 7000 km's ago.

I will try a boost leak.

 

[Lunch_Box]

White smoke is coolant. It could be a few different things which are causing it.

Which would be what? Head gasket is out because there is good compression. Maybe turbo?

 

[Lunch_Box]

well good luck, youll just keep having problems.

Well good luck with advice like yours you will never become a proven member.

 

[Talon-96]

im not here for repsect or to become a proven member buddy.

 

[1993eclipseGS]

Which would be what? Head gasket is out because there is good compression. Maybe turbo?

it can be caused by water evaporating in the exhaust stream. Occasional puffs are usually from condensation in the exhaust pipes (especially in humid areas) or an air bubble in your system.
Continual white smoke "Is usually do to": a warped head/head gasket and coolant entering your combustion chambers. If you're really unlucky, might be from a cracked head."
Some people have reported that high boost levels may promote white smoke, for some reason. Turning the boost down some cures the problem. This may also be related to worn out seals on the turbo, which can leak oil into the exhaust. A bad brake booster can potentially let brake fluid into the vacuum line, which also produces white smoke.

 

[Lunch_Box]

Im an idiot huh, Im just giving him facts that ive went through before, so if your gonna be a jack ass about you stop posting.

The car is running like stated and giving 150 compression so why would I need a new engine like you suggested?

 

[Lunch_Box]

it can be caused by water evaporating in the exhaust stream. Occasional puffs are usually from condensation in the exhaust pipes (especially in humid areas) or an air bubble in your system.
Continual white smoke "Is usually do to": a warped head/head gasket and coolant entering your combustion chambers. If you're really unlucky, might be from a cracked head."
Some people have reported that high boost levels may promote white smoke, for some reason. Turning the boost down some cures the problem. This may also be related to worn out seals on the turbo, which can leak oil into the exhaust. A bad brake booster can potentially let brake fluid into the vacuum line, which also produces white smoke.

It woulnd't be condensation because if your are driving the car for any amount of time it will still do it.

If the head was warped or the head gasket was shot then you wouldn't expect to be getting 150 compression in all 4 cylinders.

The car is only seeing 10 Psi so it is definitely not high but the turbo was used when it was put on so I am hoping it is that. Tomorrow I am going to try and swap her 14B back on and see if that changes anything.

Thanks for the help of what could be causing this.

 

[1993eclipseGS]

Your welcome. Goodluck and please post after you change the turbo.. We can go from there.

 

[MrBoxx]

Check the 16g for shaft play and check the lower intercooler pipe for oil pooling inside it. If possible, take the O2 sensor housing off the turbo and see if there's any oil residue in the turbine housing and check for shaft play on the turbine wheel side.

As stated, white smoke is usually coolant, but it's been several members' experience, including mine, that when a turbo fails, the smoke produced from the exhaust is usually whitish-gray. Also, the burning coolant smell is unmistakable, and if you say it smells like oil, then that's probably what it is. I've been told that synthetic oils burn white or gray as opposed to blue like natural oils.

Is your coolant running low? How about the oil level? Any mixing of the two? Was the head you put on to replace the old one rebuilt, or was it installed in an "as-is" condition?

 

[Lunch_Box]

Check the 16g for shaft play and check the lower intercooler pipe for oil pooling inside it. If possible, take the O2 sensor housing off the turbo and see if there's any oil residue in the turbine housing and check for shaft play on the turbine wheel side.

As stated, white smoke is usually coolant, but it's been several members' experience, including mine, that when a turbo fails, the smoke produced from the exhaust is usually whitish-gray. Also, the burning coolant smell is unmistakable, and if you say it smells like oil, then that's probably what it is. I've been told that synthetic oils burn white or gray as opposed to blue like natural oils.

Is your coolant running low? How about the oil level? Any mixing of the two? Was the head you put on to replace the old one rebuilt, or was it installed in an "as-is" condition?

The car is not running synthetic oil just the standard stuff.

The car burns some oil but there are a few small leaks that would also be causing the drop in oil level. Nothing significant though. I have had to add some coolant as well so that is what made me think that it is not the valve stem seals.

It was "suposidly" rebuilt, at least that is what the shop I bought it from told me, 7000 km's ago.

 

[95talon_in_ma]

im not here for repsect or to become a proven member buddy.

Then read all you want, but don't post..


Luch_Boxx,
Did you do the compression test hot or cold? and did you have all of the plugs out? or did you do it one cylinder at a time?

What's the muffler look like.
How bout the plugs?..

Did the shop "Warantee it"

I'd say remove the only other unknown which is the turbo. It at least eliminates the possibilities, which is the only way get to the root of any problem...

 

[Lunch_Box]

Then read all you want, but don't post..


Luch_Boxx,
Did you do the compression test hot or cold? and did you have all of the plugs out? or did you do it one cylinder at a time?

What's the muffler look like.
How bout the plugs?..

Did the shop "Warantee it"

I'd say remove the only other unknown which is the turbo. It at least eliminates the possibilities, which is the only way get to the root of any problem...

I believe the engine was cold, did it a while ago it has been smoking for a bit now, pulled one plug at a time.

The shop did not warentee anything.

The lower intercooler pipe is clean no oil residue at all. If it was the turbo wouldn't it smoke under load and not at an idle?

Isn't there a write up on here some where on how you can do the valve stem seals with out having to take off the timing belt?

Also is there any way to tell if it is the guides or the seals or both?

 

[95talon_in_ma]

A tell tale sign for seals is to have a large puff come out at startup. If neglected long enough, I guess they might blow all the time, but you'd still get the puff when you started it up.
There is a way to do the seals by putting rope into the cylinder or using a pressure adapter to the spark plu hole. Either way I guess the biggest issue is finding or creating a spring compressor for these engines.
It's not the timing belt, it's the entire head.
Removing the cams makes room for the job if your not removing the head...

Do your compression check cold, with all the plugs out.
Then put the plugs back in and warm it up.
Pull all the plugs at once and do your compression check again.

If you don't pull all the plugs you won't get an accurate reading since the cylinder simply builds pressure with the one next to it...

 

[Lunch_Box]

You mean something like this.

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I made this up when I changed the valve springs in my car.

 

[Drifte]

lunch box you should produce several of those. I know when i did my rebuild i could ahve saved $100 if i did the valve seals myself. Thats cool, i thought about making one, but just didnt have the time to mess anything else up.

before my other cars rebuild, it would blow oil out of the muffler. straight oil! it would smoke to; the valve stem seals were that bad, and the shop said they just installed it and it was all new. Sounds like we might be in the same boat.

 

[Lunch_Box]

Is there any way to tell if the valve stem guides are also shot?

 

[Lunch_Box]

Okay so I changed the valve stem seals and all was good for a couple of days and then yesterday Chantell went out to start her car for to head to work and it started smoking again. She headed off to work and called me when she got there and said that her car wasn't smokoing any more when she would stopped at a light like it use to. But then it was doing it again when she left work but was fine again when she got home. This morning I took her car for a quick drive to warm it up so I could do a compression check and the car smoked the entire time, it also popped the dip stick out and sprayed oil all over the engine. I did a compression check and it was 155-155-155-160 so the rings are fine. If the PCV is shot will the car smoke? I am putting her 14b back on to see what happens but does anyone have any other ideas?

 

[diablos991]

Yes, Exvessive pressure can build up and cause oil to blow by the seals in the turbo. Definitely swap the PCV valve and check the oil return line for kinks or blockage.