New cylinder heads, but still mixing coolant with oil.

[ecolon001]

I have a 1996 Ranger 3.0, I replace both heads with new ones because it was mixing the antifreeze with the oil, after the job was done I started the truck, the engine doesn't miss but I notice that the oil was mixed again with the cooland, any ideas as to what is going on?

 

[JDraper]

Did you check your compression to make sure that you have the head gaskets in properly and did you have the block checked to make sure it wasn't cracked?

 

[ecolon001]

No I didn't check the compression and the head gasket were in the correct please when installed,they didn't move. How do I check for a crack block?

 

[BrooklynBay]

Welcome to this forum! I've moved your thread into the Ranger section.

 

[JDraper]

That needs to be done with the heads off. Magnaflux or dye penetrant is the usual way.

Did you torque the the heads properly (correct order and to spec)? A leaky intake manifold gasket could also cause the problem.

I'd do a compression check on the motor first to see if you can isolate which cylinder(s) is causing the problem and go from there.

 

[ecolon001]

Yes the were torque in order and to 73 ft-pd on the last torque. I will do a compresion test and did I mention that the any of the cylinder were missing after the engine was on after the repair!

 

[ecolon001]

Im soory I misspell, none of the cylinder were missing after the engine was on after the repair! It was running fine, just mixed the oil

 

[ecolon001]

One more question

I change the oil again and ran the truck, no mix of oil and antifreeze, now I have one last question. When I first but while i was driving and I heard the engine making a little bit of noice then turn the engine off,I crank the engine again and the pressure was back to normal, about 6 month after it did it again, same thing, any ideas what going on? may be the canshaft sinchronizer ? you know that little gear is made out of nylon maybe wearing off.
well any help will be greatly appreciate!!

Thank

Ed