stock sohc ka24

Ive replace the thermostat, radiator, rad. cap, fan clutch, and water pump.

Cant drive the car for more than 15-20 minutes before it pins out into the "H", and the resivior is bubbling over.

Everyone I know says its a blown head gasket, but the car starts up and runs fine, what gives?

 

Do a compression test? Bleed out all the bubbles? Check temp sensors? Milky oil or oily coolant?

 

I had a sohc ka24e that started up and drove fine but after 10 mins it would overheat and bubble out the resevoir...it was a blown headgasket.

 

The coolant is fine, its not milky or oily. I work for a fast lube, and I flushed the coolant myself, there are no air pockets.

Its doesnt blow any smoke out of the exhaust.

If the fan and thermostat are mechanical, the temp sensor has nothing to do but register how hot everything is.

 

anyone? I dont want to waste money replacing the head gasket if its somethng else

 

iron block .have you tried to flush it? might want to pressure test the coolant system. might have a pinhole some place?

 

i had the same issue on my sr turned out to be headgasket.. replace it before you ruin your block. felpro is good and inexpensive

 

if you replaced the rad,thermostat, and bleed out the system the best you could then its the head gasket. the gasket should only be around 40 bux, but it is gonna take some time to do it if its your first time

 

i know you said there are no air pockets but you bled it out of the screw behind the cts sensor? if so do as said above

 

compression and/or leak down test.

then, head gasket.