Oil in my radiator???.... R33 GTR

[tom9999]

Hey guys,

I have oil in my radiator, ive done a flush, and its still there. Also the coolant is boiling but my temp gauge is not showning its overheating.

Had a full rebuild about 8 months ago. HKS 2530 turbos {23psi} MLS 5 layer head gasket the car was pinging up high then i stop driving hard (to get it fixed). then a few weeks later found oil in my radiator

Head gasket or block???

[jaycabs]

i had this a while back and it turned out to be a crack in the head.
so was a new head that i had to get.

[tom9999]

yeah i hoping its not the block. its being overheating a bit so warped head or cracked.. Can you pressure test the cooling system to see if it leaks to confirm its a head gasket????

[jaycabs]

if you pressure test the coolant then unless it leaks externaly then you wont know if its the head gasket or cracked head.

is your coolant in your radiator gone like a milk shake sludge ? and it comes back straight away after flushing the coolant and your oil levels go down quickly after a short drive ?

[tom9999]

is your coolant in your radiator gone like a milk shake sludge ? and it comes back straight away after flushing the coolant and your oil levels go down quickly after a short drive ?[/QUOTE]

yeah thats pretty much it and a overheating problem???

[jaycabs]

its rare for the head gasket to go on GTR's

[tom9999]

yeah very true. just hoping its not the block,, has ive just spent heaps on a big end bearing. anyway to tell its a cracked or warped head??

[jaycabs]

you need to get it taken in to tuner ( a good one ) on a flat bed trailer .

unless your a competent mechanic and can take the head of your self and strip it down and get a replacement head ?

[jaycabs]

Originally Posted by tom9999

yeah very true. just hoping its not the block,, has ive just spent heaps on a big end bearing. anyway to tell its a cracked or warped head??

theres no proper way besides taken the head off but you have the tell tale signs of a cracked head but you realy need to get a good tuner to inspect it even though its not cheap

[TEN57]

I have just fixed the same problem (oil in the coolant) in my R32 GTR. What was happening with mine was carrosion had caused a small hole in the ballance chamber at the end where coolant air bleed screw is. Under boost it would drive oily air into the coolant.

What also happens is was also dropping small amounts of coolant into No1 cylinder. The easy way to test if this is your problem is to remove all your spark plugs and pressurise your radiator over night. Next morning wind over the engine and see if water vapour comes out of no 1 cylinder. If it does you might have the same issue as I did.

[jasaircraft]

Originally Posted by TEN57

I have just fixed the same problem (oil in the coolant) in my R32 GTR. What was happening with mine was carrosion had caused a small hole in the ballance chamber at the end where coolant air bleed screw is. Under boost it would drive oily air into the coolant.

What also happens is was also dropping small amounts of coolant into No1 cylinder. The easy way to test if this is your problem is to remove all your spark plugs and pressurise your radiator over night. Next morning wind over the engine and see if water vapour comes out of no 1 cylinder. If it does you might have the same issue as I did.

Hi could you please tell us more clearly where the bleeder screw is?

[markpriorgts-t]

[jasaircraft]

very graphic...heheh thanks

[TEN57]

Yep, that's the one

[godzirra]

Originally Posted by markpriorgts-t

What does it mean if when I take this screw off nothing comes out??

Already filled the rad up and heated up the engine but when I took off this screw it was dry as a desert??