87turbottype
WE4
- Joined
- Jul 31, 2011
Hey guys,
I did a stock motor rebuild in my WE4. It did run before disassembly. I had a local reputable shop change out the valve springs and resurface the heads. Bottom end looked good, so I left it alone. After reassembling, it started up and ran a little rough, but ran on it's own upon first start. While making sure I had enough oil pressure (good oil pressure), it poured white smoke out of the tailpipe. I let it run for a couple mi utes to see if the smoke would subside, but it didn't.
First, I checked the PCV to find it good. Next, I took the downpipe off to find the turbo saturated in oil, dripping through the downpipe. Intake and intercooler side of the turbo is clean and has no shaft play. Took the turbo off the exhaust manifold along with the crossover pipe and found oil in the bottom of the crossover pipe.
After seeing the oil in the crossover pipe, I removed the spark plugs to find 5/6 spark plugs have oil on them. Looking inside at the piston, all the pistons were shiny (oil covered). I checked compression and had around 125 across all cylinders (a little low but nothing alarming).
At this point, I'm kinda throwing out the possibility of a bad turbo and leaning towards the heads that I had done at a local shop. I am feeling this way due to the oil in the crossover pipe and oil on the spark plugs/pistons with compression being fine. Unless I am jumping to conclusions?
What is the next steps I should take to diagnosing this oil issue? Any input is greatly appreciated!
Thank you
I did a stock motor rebuild in my WE4. It did run before disassembly. I had a local reputable shop change out the valve springs and resurface the heads. Bottom end looked good, so I left it alone. After reassembling, it started up and ran a little rough, but ran on it's own upon first start. While making sure I had enough oil pressure (good oil pressure), it poured white smoke out of the tailpipe. I let it run for a couple mi utes to see if the smoke would subside, but it didn't.
First, I checked the PCV to find it good. Next, I took the downpipe off to find the turbo saturated in oil, dripping through the downpipe. Intake and intercooler side of the turbo is clean and has no shaft play. Took the turbo off the exhaust manifold along with the crossover pipe and found oil in the bottom of the crossover pipe.
After seeing the oil in the crossover pipe, I removed the spark plugs to find 5/6 spark plugs have oil on them. Looking inside at the piston, all the pistons were shiny (oil covered). I checked compression and had around 125 across all cylinders (a little low but nothing alarming).
At this point, I'm kinda throwing out the possibility of a bad turbo and leaning towards the heads that I had done at a local shop. I am feeling this way due to the oil in the crossover pipe and oil on the spark plugs/pistons with compression being fine. Unless I am jumping to conclusions?
What is the next steps I should take to diagnosing this oil issue? Any input is greatly appreciated!
Thank you