Jump to content
SAU Community

Recommended Posts

hey, i just found out quite alot of oil is leaking into my coolant and i was wondering if you guys could help me out by telling me what you guys think. Ive taken the car to a mechanic and they reckon it could be either a cracked head or a crack in the block, both these are an expensive option to repair. Would it also be possible that the head gasket may have something to do with the problem? eg over tightning etc..

Link to comment
https://www.sau.com.au/forums/topic/139533-oil-in-coolant/
Share on other sites

Not common to crack the DOHC heads.

Most likely a headgasket.

Are you sure its oil and not just sludge build up from the lack of coolant changes. When I first bought mine close to 5yrs ago, cleaned radiator, a block and heater core flush by myself with good new coolant never got rid of it.

Dropped a new motor in it and the sludge crap was still there. Gave it a power flush and it came good.

There must of been a heap of sludge in the heater core that my garden hose couldn't get out. :laugh:

Link to comment
https://www.sau.com.au/forums/topic/139533-oil-in-coolant/#findComment-2600898
Share on other sites

Not common to crack the DOHC heads.

Most likely a headgasket.

Are you sure its oil and not just sludge build up from the lack of coolant changes. When I first bought mine close to 5yrs ago, cleaned radiator, a block and heater core flush by myself with good new coolant never got rid of it.

Dropped a new motor in it and the sludge crap was still there. Gave it a power flush and it came good.

There must of been a heap of sludge in the heater core that my garden hose couldn't get out. :laugh:

when i took it to my mechanic, he said he flushed it a few times and was still able to watch the oil flow through the coolant in the radiator

Link to comment
https://www.sau.com.au/forums/topic/139533-oil-in-coolant/#findComment-2601091
Share on other sites

when i took it to my mechanic, he said he flushed it a few times and was still able to watch the oil flow through the coolant in the radiator

if the car is an auto...the radiator might be stuffd inside letting the auto fluid mix in with the coolant

Link to comment
https://www.sau.com.au/forums/topic/139533-oil-in-coolant/#findComment-2601098
Share on other sites

when i took it to my mechanic, he said he flushed it a few times and was still able to watch the oil flow through the coolant in the radiator

How trust worthy is this mechanic?

Is he a well known performance shop?

Grab a second opinion.. It could save you quite a bit of money.

Chances are if you are getting oil in the water then you will also get water in the oil as when you shut the car down the cooling system pressurises while the oil is un-pressurised

In the past with cracked heads on VL's I usually see water in the oil up in the pvc valve before I see water in the oil, when left long enough you then see the white crap (water) under the oil filler cap.

Link to comment
https://www.sau.com.au/forums/topic/139533-oil-in-coolant/#findComment-2601293
Share on other sites

is there water in the oil or just oil in the water? i have had oil in my coolant only prob before. have u got a workshop manual for the car? look up the pics of the oil setup between the oil filter and the block. there is a sandwich plate round factory oil cooler/transfer unit. theres a coil running through it that passes the oil from the block to the filter. coolant runs around the coil. the coil in mine had corroded though. cos there was more pressure in the oil then coolant, i only had oil pushing into the coolant... its a bitch to get to but its possible to change without takin off the plenium. a lot cheaper then lookin at head gaskets.

Link to comment
https://www.sau.com.au/forums/topic/139533-oil-in-coolant/#findComment-2602678
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Hello!  i just finished manual swaping my r34 skyline with a r33 rb20de box(RB71C)box  When the car is running it squeaks crazy loud and it was smoking from the gearbox area. The gearbox is fine it was tested. The clutch slave cylinder seems like it doesn't fully releases the clutch. I want to ask if this noise is from the throw out bearing or could it be the clutch assembly or disk att.xFliq87Gzw6kImKBVqDebXkj0fBqymk0JaYeP3_3SlM.mp4
    • A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
    • Yeah mate, never miss it.
    • Any going to watch World Time Attack at SMSP this year?
    • Appreciate the correction on the "ground", that will make a huge difference to looking at this. That makes complete sense about AF70/AF71 which is what I had come down to being the issue, one of these. I'll have another look in the ignition wiring when I get a chance next week. I'll also make up a jumper wire for running that AF73 test.  ECU is fine, relay itself is fine, pump harness is fine and the pump itself is fine. I am going to upgrade the Walbro 255 anyway with a DW300 I have since I need to replace the fuel sender and I'm going to upgrade the FPR with my chasebays kit ready for new plenum/injectors/dbw, but I'll get this working first. That's why this is so frustrating. 
×
×
  • Create New...