Oil On Bleed Vlave

[Ruffels]

hey guys every week or so i pop the bonnet just to check on shit etc.. anyways lately ive been noticing that there is quite a substancial amaount of oil on the blled valve... just wondering if this is normal?

lol sorry if this is a blatently obvious quesion or what not.. im new to the skyline game

-Ruffels

[siksII]

hey guys every week or so i pop the bonnet just to check on shit etc.. anyways lately ive been noticing that there is quite a substancial amaount of oil on the blled valve... just wondering if this is normal?

lol sorry if this is a blatently obvious quesion or what not.. im new to the skyline game

-Ruffels

<{POST_SNAPBACK}>

it is blow by, which is oil going backwards through your intake piping, the more worn your motor is the more blow by you get, so nothing to worry about unless it is heaps.

if you get a catch can it will reduce the oil getting past.

[FATGTS-R]

Or the seal on your turbo could be on its way/gone.

[NZM.031]

thats what happened to mine... the bleed valve hose blew off and oil went everywhere.... checked compression... all good, so off came the turbo...

there was an enourmous amount of oil through the intercooler and all the piping. ruined the plugs and made it cough and splutter real bad.

cheers

Linton

[NA_R33]

Blow by is something to worry about, oil mixed with fuel leans off the mixture leading to detonation.

[Ruffels]

ouch.. i dont like the sound of this.... its onyl a few drips.. its not large amounts of oil..

i know its not my engine.. i had it compression tested and other factors point to the fact that the engine is in tip top condition

which if what some of you guys are saying means its the turbo :S

are there any tests i can do with out completely removing thye turbo to see if its on the way out?

-Ruffels

[CEF11E]

see if you are blowing smoke at high boost/rpm by getting somebody to drive behind you.

if you are not blowing excessive smoke it is probably within acceptable ware.

also take off the intake pipe and check it see if it has oil all over it and the throttle body.

If you do have oil everywhere you need to take off the intercooler and all piping and clean it out with carby cleaner or thinners. also the Acc valve and even the plenum if you are keen. once this is done change your plugs and install a catch can to prevent it from happening again.

[NA_R33]

A compression test will not show what sort of condition the engine is in and if it will have blow by, you need to do a leak down test to know for sure.

[siksII]

A compression test will not show what sort of condition the engine is in and if it will have blow by, you need to do a leak down test to know for sure.

<{POST_SNAPBACK}>

yep i 100% agree, just because your compression is good does not mean it is not worn and will not produce blow by, and as na_r33 says if there is a fair bit it might cause pinging, but most gtsts i have seen have a bit mostly just due to their age (wear and tear) just depends how much. if u want to be safe get an oil catch can and make sure its got stuff inside like steel wool to seperate oil/air properly, and that its not just empty like a lot of them.

[Cubes]

For Oil to be blowing out of the bleeder there must be quite a bit of oil blowing about.

My little old RB20DET that clockde 170k running 1bar had zero oil in the piping, let alone any coming out of the bleeder.

[siksII]

could be using very thin oil, might want to try a thicker oil to reduce it, and if there is a fair amount get a leakdown test, you could have worn rings.

an r33 i had before my current one had heaps of blow by, but perfect compression. this was put down to when the previous owner had it rebuilt, they ran it in with mobil 1 full synthetic so the rings never bedded in properly.

in my current r33, there is next to zero oil in the intake even after very hard use

[Ruffels]

i wiped it all nice and clean about 2 weeks ago... and i checked again today and its still clean.. so it must be a very small gradual build up

so there isnt ALOT of oil coming out only a very small amount that seeps out every once in a while and puts a small film of oil in spots around the bleeder......

im gonna take of the intake piping this week and have a god look at the amount of oil in the pipes.... im hoping its just the seal on the turbo and nothing more major

-Ruffels

[Cubes]

As said above.

What oil are you running? Slap some thicker Castrol 10w60 in the sucker.

[siksII]

i wiped it all nice and clean about 2 weeks ago... and i checked again today and its still clean.. so it must be a very small gradual build up

so there isnt ALOT of oil coming out only a very small amount that seeps out every once in a while and puts a small film of oil in spots around the bleeder......

im gonna take of the intake piping this week and have a god look at the amount of oil in the pipes.... im hoping its just the seal on the turbo and nothing more major

-Ruffels

<{POST_SNAPBACK}>

yeah as cubes said what oil are u using? and cubes, i put some 10w60 castrol (bloody expensive though!) in my old car it certainly used less then when running 5w40

i bet u if u take your cooler off there will be lots in there, there usually is if it has never been flushed

i doubt it is a turbo seal, and if it is blowby, which i think it is, i dont think its something to worry about since ur saying its only a very small amount. i would be more worried if it was a turbo seal, that means u need a new one, if its some blow by it means get a catch can and live with it, its not the end of the world!

[Cubes]

You haven't told us a list of mods...

PFC?? Higher boost etc??

[Ruffels]

oh sorry mate

the cars pretty stock standard...

just k&n pod and bleeder running 10psi.. other then that... its stockasarock mechanically

and i dont think its ever been modded in the past.. there are no signs of a front mount, or anything else like that

i ran it on the dyno not to long ago and got 151.3kw@wheels which wasnt to bad.... so its not like is running underpowered etc... not that that is relavent... lol

so yeah... catchcan and a bloody good clean out of the pipes it is...i dont know what oil i have in there as the previous owner put new stuff in there when i bought the car... ive done about 4500km's since i bought the car so i think its time for some new oil.... so i shall use that oil you recommended

*sorry bout any lack of info that i have provided lol, still new to the skyline game.. its my first car and im just getting my head around it*

-Ruffels

[paulr33]

try turning boost down and see if the problem still occurs? could be turbo seals