dirty coolant..

[olly]

My mate and I were servicing his car today and we noticed his coolant was oily and a brown dirty colour. We flushed it out two times, topped it up, took it for a spin came back and it got all dirty again. I know we didn't get it all out after the flushes, but it came back the exact came colour as if something kept contaminating it.

I remembered when I blew my headgasket it turned that brown colour so we checked the dipstick but there was no milky residue. Car runs fine, idles fine, does not sound strange but his coolant is always dirty.

Is oil leaking into it? Could the headgasket still be blown? Or maybe the turbo? It's an s15 by the way.

 

[bazeng]

could be corrosion...

what are you using to flush it?

are you completly removing the radiator and back flushing it also?

u can get it cleaned professionally at a radiator place..
otherwise, keep flushing..

make sure to use coolant when done!

 

[DOUGMO]

ALSO MAKE SURE YOU HAVE THE HEATER ON,

ITS ALSO A GOOD IDEA TO TAKE A HEATER HOSE AND BACK FLUSH THE CORE AND MOTOR,

USUALLY TAKES A FEW TIMES.

 

[Jonson]

If the headgasket is blown you will notice it.

But yeah, what they ^^ said.

 

[jase]

yep what everyone said

just keep flushing

i remember my first datsun...put half the murray darling through that thing :lol:

 

[olly]

no wonder we got water restrictions now

thank's guys. my mate took it to some radiator place to get it professionally flushed out.

 

[Richard]

To have that browncrap in your radiator in the first place would suggest that you have a blown headgasket, you may not find the coolant in the oil. Has the car been getting hot? the headgasket will be blown between the oil and coolant gallerys. Kia carnival is a classic for doing this, you've no idea how many come in for a service only to find they need a major warranty repair. So just flushing the radiator will never fix it. When the headgasket is fixed you will need to get a special radiator flush that breaks down the oil, usually you will have to leave it in for 24 hours then flush, but what the other guys said about the heater tap needing to be on is necisary also.

 

[GVR40]

head gasket isn't that big of a job, specially if you know what u need to unbolt or not to, on a 4g63 it should only take a couple of hours, to disasemble and reasemble (once the timing belt is off) u don't need to pull the manifolds off