Oil In Intercooler

[mjones]

hi all,i was just wondering if there is sposed to be oil in the intercooler? i had a little frontend "ding" the other day and when i pulled my intercooler off it had oil in it,just wondering if its sposed to be there,cheers mick

[moonus]

it may cause pinging. Safe to clean it out

Edited November 28, 2006 by moonus

[mjones]

it may cause pinging. Safe to clean it out

ok sweet i was going to clean it anyway and pressure test it to make sure theres no leaks,so where does the oil come from?

[WazR32GTSt]

a thin film of il is normal, but a lot of oil is abnormal...

[mjones]

a thin film of il is normal, but a lot of oil is abnormal...

ok well,in one side of the intercooler it had alittle bit of oil and in the other it was very clean no a trace of oil,is this all normal,im not saying it was flowing out or anything but there is abit comeing out of one of the pipes going to the intercooler.

my car was running fine brfore my front end "ding" and even after that it's just that i noticed it once i pulled the cooler off(mind you it hasn't been taken off since imported) i'm just starting to figure out these turbo cars (used to drive the good old trusty 308's) just making sure everything is hunky dorey

[mark32gts-t]

means you have a little blow-by. Some oil is passing by your piston rings and is being pushed through your inlet pipes.

I've heard this happens if you're running more boost than stock and if the engines worn. If its an RB20 probably not much of a surprise. They are getting old now. Here's a pic of an RB20DET inlet manifold with really bad blow-by:

[mjones]

means you have a little blow-by. Some oil is passing by your piston rings and is being pushed through your inlet pipes.

I've heard this happens if you're running more boost than stock and if the engines worn. If its an RB20 probably not much of a surprise. They are getting old now. Here's a pic of an RB20DET inlet manifold with really bad blow-by:

its a rb25det and its done 104 thou k's,so you reckon throw some new rings in it soon? as far as i know its only running standad boost

Edited November 28, 2006 by mjones

[RBwhatever]

Get yourself an oil catch can, to stop the oil from coating your intercooler.

Mine was running standard boost, and when I swapped the intercooler, my stocko had a coating of oil inside it aswell.

At the moment your intercooler is the catch can and it decreases its performance..

Edited November 29, 2006 by KeyMakeR33

[mjones]

Get yourself an oil catch can, to stop the oil from coating your intercooler.

Mine was running standard boost, and when I swapped the intercooler, my stocko had a coating of oil inside it aswell.

At the moment your intercooler is the catch can and it decreases its performance..

ok sweet,thanks for the help people,cheers mick

[Godzilla32]

Can also be the compressor oil seal.

[willowdrift]

Ive got an rb20det with a bit of blow by either from compressor seal or valve stems. Does oil just sit in the pipes as i can see or does it also accumulate in the intercooler fins /core? Before fitting an oil catch can is it allright to spray degreaser into the front of the intercooler core then spray clean with a hose to get rid of any oil?

[mjones]

Ive got an rb20det with a bit of blow by either from compressor seal or valve stems. Does oil just sit in the pipes as i can see or does it also accumulate in the intercooler fins /core? Before fitting an oil catch can is it allright to spray degreaser into the front of the intercooler core then spray clean with a hose to get rid of any oil?

take it to a radiator place they will give it a flush out shouldn't cost more than $50

[Godzilla32]

I had mine re jigged, leak tested, repaired, cleaned and painted for $50 dunno if that was mates rates tho..

[SECURITY]

could be blown oil seal on your turbo.

[MerlinTheHapyPig]

it's quite normal, rb's breathe fairly heavy, a little blow-by particularly at high revs is common, and it doesn't mean your engine is on it's way - you can check this by doing a compression test.