I finally got the replacement XTT engine installed and hooked up in my 88 GL-10 but now I have the problem of massive amounts of smoke out of the engine. When you first start it there is not much, but you can easily see it. If you rev it up however, it starts taking big rips and leaves a smoke screen behind it. Not water vapor, but engine oil, and i was told the engine ran before I bought it and that it had come out of a car with a bad tranny that was being scrapped. Any ideas?

If the car it came out of had a AT in it, it most likely sucked in some ATF into the intake. It just needs to burn off, run it for a while.

Let it run for a bit. When I dropped the used SPFI engine into my car, it smoked. A lot. After idling for about 10 minutes, it pretty much stopped.

 

Keep an eye on the oil pressure though in case its burning crankcase oil.

My subaru sat for almost a year with busted timing belts, and i started it and it smoked very badly for a little while

@ subject

 

I agree, try letting it burn and watch the oil. I would drain the oil shortly, and put some cheapo 10-30 in, with a bit of sea-foam, and then do an oil and filter change fairly soon after that. Thats my preferred procedure for "breaking in" a JY engine.

When I awoke this morning, I started the wagon and let it run until it was good and hot. After a time the smoke out the tailpipe HAD been reduced but Bob still had the splif. The minute I touched the throttle however, the smokescreen returned. I don't mean like some exhaust and some smoke, its like this engine breathes in air and exhales smoke. Bad rings (shudder), bad valve guides (wince), hole in piston (more likely than not)? What is, or could be causing this?

how long did it sit before you installed it and and how was it stored? Perhaps the walls and rings corroded. Then when you started running it the rust and scale acted as an abrassive to scour the cylinder walls. Compression test should tell you. Sure it's not coolant smoke? from a cracked exhaust port or bad HG?

Sounds like a turbo seal went capooey. That happened with my car when I was driving from Pa. to Ca. Just west of Omaha, Nebraska I went to pass a pickup towing a trailer and left him in a cloud of smoke. I just replaced the turbo with a jy model with unknown mileage and it's still going.

 

Drive it a little and see if it clears up. If not,

 

rex

Sounds like a turbo seal went capooey. That happened with my car when I was driving from Pa. to Ca. Just west of Omaha, Nebraska I went to pass a pickup towing a trailer and left him in a cloud of smoke. I just replaced the turbo with a jy model with unknown mileage and it's still going.

 

Drive it a little and see if it clears up. If not,

 

rex

 

Good call. Very possible

Took it for a drive this morning. I actually had people pull over and yell at me that my car was about to explode... Those theories both sound plausable. I'll run that compression check today if possible. I'm pretty sure its not the turbo, but not sure enough to rule it out yet. Are there any oil lines that I could have accidently plumbed back into the intake? Would this occur if the PCV system was reconnected wrong?

Originally Posted by carfreak85

Are there any oil lines that I could have accidently plumbed back into the intake? Would this occur if the PCV system was reconnected wrong?

Anything's possible. Not likely, though. The PCV system is very possible if you hooked the valve cover hoses to the wrong place. It's hard to say without seeing it. How much of that stuff did you have apart?

Took it for a drive this morning. I actually had people pull over and yell at me that my car was about to explode... Those theorys both sound plausable. I'll run that compression check today if possible. I'm pretty sure its not the turbo, but not sure enough to rule it out yet. Are there any oil lines that I could have accidently plumbed back into the intake? Would this occur if the PCV system was reconnected wrong?

 

Yes, it happened to me on a 85 carby coming back from Cle Elum. I paid $10 for the wagon and hastily put the lines back on and headed for home, with the wife following me. She thought the same thing:grin:

I ended up parking it in North Bend and retrieving it wil a tow dolly. I figured it out later when I had a manual to go by.

Would this occur if the PCV system was reconnected wrong?

 

YES! Especially if the rings are worn and you are getting blow by. That basically pressurizes the oil system, and forces it out interesting places. I'd unplug all three ports, and block off the PCV, and take it for a spin.

Turned out to be the oil drain line from the turbo. It was too long and when installed, had a kink in it that blocked the flow of oil. Its now fixed and running perfectly!