rb20det OIL IN INTAKE/INTERCOOLER PIPE

Discuss the RB20, RB25 and RB26 series engines.
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jesse0357
Posts: 93
Joined: Tue Jun 12, 2012 11:22 pm
Car: 89 240sx rb20det swap
Location: arizona

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i was testing out a mafs the other day on my rb20det (know someone who needed one) to see if it was a working one, and i noticed oil in my intake tube in front of the turbo and just behind the maf. i have a catch can so I'm not to sure how oil is in there unless the turbo seal is done and its pushing oil in there. its nasty black black oil and theres a bit in the turbo as well. I should mention its a rb25 turbo.
any guesses or why i have oil there?
thanks all

heres my catch can set up
Image


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themadscientist
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Joined: Tue Nov 12, 2002 3:30 pm
Car: R32 GTR, DR30 RS Turbo, BRZ, Lunchbox, NSR50 Sportster 883 Iron
Location: Staring down at you with disdain from the spooky mountaintop castle.

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It could have been there for a while. Do you know for sure it was completely clean before the catchtank was installed?

It can't hurt to wiggle the compressor wheel and see how much play there is.

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jesse0357
Posts: 93
Joined: Tue Jun 12, 2012 11:22 pm
Car: 89 240sx rb20det swap
Location: arizona

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Not positive it was completely clean before I put the catch can in I didnt really think about that, but I did feel the shaft and it has a bit of in and out movement. Ive been pretty hard on it, im running around 14psi boost so a little more then what it should have. Im not to to worried about it I dont have any other issues just figured id ask.


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