white smoke after boost leak test (urgent help)

[xX-ProudDSM-Xx]

Ok so I have a 95 eclipse gst. So me and my friend did a boost like test, and we seen that it was coming out of the j-pipe. Its actually my friends car. He has a j-pipe on a 14b turbo. But he says its a small 16g. So we used gasket sealent on the j-pipe and after we put everything back and set up the hoses differently,we turned on the car and a lot of white smoke came out, the car was boosting about 12 psi. So then we moved the hoses around (hoses from bov,air intake,intake manifold and the valve cover one) to how they were before and no white smoke came out. But now the car was boosting 5 psi (was pushing 5 psi even before doing the boost leak test). I also tested his injectors and all were reading different like 5.2,3.4, etc. We didn't let the air out of the engine because the air was already coming out where you insert the engine oil from(is that normal?).so air compresson doesn't stay in the car.
Back to the white smoke: he replaced his block with another 96 gst he has,while doing that he also bought a whole new set of gasket from the car. I believed he had a bad turbo. Reason why is because it can't be the head gasket cus he replaced it a week ago. Idk what it could be,### help me out.

 

[Infamous33]

You haven't given a whole lot to go on, but it sounds like you have a coolant hose connected to a vacuum source. Might be best if you post some pics of the lines that you moved around. The other question is why did he swap blocks and did he check the head for warpage?

 

[xX-ProudDSM-Xx]

white smoke is coolant i believe.. check your vaccume lines and turbo center housing.

We did disconnect the coolant line that goes to the turbo or wherever it goes to.we sprayed soup with water on the o2 housing and the j-pipe just to check for the leak because like I said compression doesn't stay in the engine.

Reason why he switched his block is because he had a rod knock.

 

[camsmurdered2g]

White smoke is coolant being burned off. So it should be pretty easy to track.

 

[92AWDHX40]

Do a compression test, and give us some results new hg, doesnt matter something could have gone wrong do a compression test to rule that out.

 

[xX-ProudDSM-Xx]

Do a compression test, and give us some results new hg, doesnt matter something could have gone wrong do a compression test to rule that out.

The coolant part: the white smoke is coming out of the exhaust.

And also what is causing the air compression to come out of the thing where you insert oil. (I'm not talking about the one on the valve cover)

 

[92AWDHX40]

Im confused please clarify, first do a compression test. Insert oil, the cap?

 

[jb2zero0six5]

I think he is hearing bubbling in the oil pan, and the sounds is coming from the dipstick. Must be second langauge? Compressed air will get passed the thrust plate and journal bearing, down the oil return line, and bubble in the oil pan.

On the right track?

 

[camsmurdered2g]

OK,
1-Is this a hybrid turbo? water/oil cooled?
2-Internal wategate?
3-Are you sure you are running vacuum lines correctly and where was the boost set at when it hit 12psi?

 

[xX-ProudDSM-Xx]

OK,
1-Is this a hybrid turbo? water/oil cooled?
2-Internal wategate?
3-Are you sure you are running vacuum lines correctly and where was the boost set at when it hit 12psi?

Ok let me be more specific, I thinks its called the dipstick (where you can check how much engine oil your car has) ok so i got a bottle and put soap mixed with water. I sprayed it all over the j-pipe,and o2 housing. Then I runned the test. So a large amount of air came out of the j-pipe and also heard the it was coming out of the "dipstick". So I sealed up the j-pipe with gasket sealant. I ran the test and no air was coming out of the j-pipe so now it was coming out of the dipstick. Air compression does not stay in the again. Car can't even go any higher than 3,000 rpms without having a loud backfire. I providing all this information just so you guys can see what I've done during the test. 12psi were sho

 

[coop795]

sounds like you have bad rings on the pistons, I think your motor is no good or your head gasket is bad and pushing water into the pistons and air is going past the rings on compression.

 

[quiksilver20004]

OK air coming from the crank case or dipstick in your case is usually (on a good motor meaning good compression) is a bad PCV valve. There is a vac line that runs from the intake manifold to the valve cover with a metal valve that goes into the cover. There is a spring and check ball in this piece. IF it is bad then boost pressure will leak past the valve and start pressurizing your crank case which would be why you would hear air coming from the dipstick and you should also hear air coming from the valve cover vent tube.

You really need to clarify your story and the terms used in it for me to help out more with the smoke issue. IF you think it is coolant then you can get a coolant sys tester and pressurize your coolant sys and see if it is bleeding off. you should also do a cylinder leak down test, as you do this test take the cap off the radiator and see if there are any bubbles coming up, if so then you either have a blown head gasket or a crack in the cylinder that is leaking into the water jacket.

The smoke could also be oil but if its burning oil is usually blueish to gray

 

[MrKelly]

I second what quicksilver said, you can also cap one coolant line on the turbo and pump 5 psi of pressure to the other and see if the seal holds too. Same problem on both motors with the same turbo. Does the car have old gas in it? That causes white smoke and the car to miss. Harbor freight has cheap leak down and compression test kits that are universal

 

[mndizzum]

so is this normal for a 2g turbo to have coolant lines, i have only had a 1g and i have never seen that.

 

[MrKelly]

1g has them too, but most aftermarket turbos are just oil fed and the coolant lines are deleted.

 

[mndizzum]

ok i feel dumb now, i went out to look at my motor and i definatly see then now.

 

[BLINKY619]

I once performed a boost leak test and starting smoking... but it was blue