oil in innercooler

[RBruton]

Just wanting some feedback on why I have some oil in the innercooler. I have a stock turbo that has been functioning fine as far as I know but I have an opportunity to upgrade to a larger turbo. I found oil on the bottom side of the upper inlet that had not been there before but has appeared since I installed an alky injection system. I believe I made have early on mixed to much lubricant in the alky and was wondering if this oil could possibly be from the alky injection or bad seals in the stock turbo. When disconnecting the innercooler from the turbo there was no sign of an oil leak, there was alot of oil on the bottom end of the upper inlet pipe coming from the inner cooler. Any thoughts on this?

 

[boostedmaxPSI]

Well, you say you have a stock turbo, do you also have the stock inlet bell that has the breather hose back to the valve cover? If so, then that could be a good place to start looking.

If not then it's possible that a seal in the turbo went out.

Frank

 

[RBruton]

There is a vacuum line off the bottom of the bell, I have not traced it out to see where it goes.

 

[RBruton]

I'm not sure how this vacuum line is a starting point for possibly being a reason there is oil in the intercooler. I was told this line's primary function is to let the computer know what the turbo is doing and didn't look any further. Thanks for your reply Frank!

 

[boostedmaxPSI]

Originally posted by RBruton
I'm not sure how this vacuum line is a starting point for possibly being a reason there is oil in the intercooler. I was told this line's primary function is to let the computer know what the turbo is doing and didn't look any further. Thanks for your reply Frank!

Not really looking for a vacuum line. There is a preformed hose that runs from the backside of the inlet bell to the front of the passanger valve cover, it's used for emissons purposes. If that's there then chances are this is why there is oil in your intercooler and that's normal.

Keep posting and let me know if you find it.

Frank

 

[RBruton]

I'll check it out, thanks Frank
Robert
Oh it may not matter, if I can't get them darn (3) manifold nuts off no telling what I'm capable of. I'm having trouble with them and the upper oil inlet and trying not to strip anything.

 

[boostedmaxPSI]

Originally posted by RBruton
I'll check it out, thanks Frank
Robert
Oh it may not matter, if I can't get them darn (3) manifold nuts off no telling what I'm capable of. I'm having trouble with them and the upper oil inlet and trying not to strip anything.

Sounds like your removing the turbo? You don't need to remove the turbo to see this line.

 

[RBruton]

I have the opportunity to upgrade the turbo and even try it out before I buy it, thats where this whole thing started. Its a TE44 and figured I couldn't go wrong with a try before you buy. Thats the only reason this project is taking place. In the disassembly process is when I found sludge on the bottom of the upper inlet, I pulled the innercooler because I felt I might have alittle more access to the bottom fasteners on the turbo plus I was told its a good idea to flush it periodically.

 

[boostedmaxPSI]

Ahhhh! I just didn't want to cunfuse the situation.

Good luck

 

[RBruton]

I didn't have that pre-formed hose you referred to. I asked another friend about the hose and he said it was a vent hose of sorts and if it were still there I would want to convert it but apparantly its already been done. He also said its not uncommon on a stock turbo to pass some oil through. My input and output on the turbo seem to be dry and free of oil. I appreciate your comments. Still working on freeing the stocker from the car.
Robert

 

[denn454]

RBruton, you have a private message.