ok i got oil in the radiator but ive got consistent compression across the board at 125 also a mechanic did a "head gasket test" and said that its not the head gasket. So what could it be. Is there any other way for oil to get in the coolant?

its a 92 loyale.

ok i got oil in the radiator but ive got consistent compression across the board at 125 also a mechanic did a "head gasket test" and said that its not the head gasket. So what could it be. Is there any other way for oil to get in the coolant?

its a 92 loyale.

 

It depends on where the gasket is leaking. If its between the cylinders or around the cylinders, you'll lose compression. Oil galley will leak oil. Water jacket will leak water. Either of them internally or externally. I would suspect a possible leak between the oil galley and water jacket not getting into the compression chamber therefore not effecting compression.....yet. That is what the head gasket does. It keeps compression, water and oil seperate. There may be other reasons on a pan motor that I'm not aware of so don't bet the farm on this info. This is just basic mecahnics speaking here.

 

Have you detected any water in the oil?

Any over heating as of yet?

 

FYI It seems most of the 1800 heads develop cracks but oddly enough this has no effect on the running of the engine. Nor the durability of the head gaskets. Beats all I've ever seen.

A buddy of mine had a similar problem with an EA81. When we got the engine torn down, we found a crack in the block between the cylinder sleeve and a water jacket. We also discovered that the sleeve had spun too.

no water in the oil but it is overheating. only going up hill though. I just got it back from the mechanic and he said there was no leak but as soon as i drove it, bam, it started getting really hot. he tested the compression and he put the leak tester in the radiotor and nothing. How likely is it that it blew between a oil and water jacket? and if so wouldnt there be water in the oil too? when its not running you would think the water would drip down in to the pan.

ok i got oil in the radiator but ive got consistent compression across the board at 125 also a mechanic did a "head gasket test" and said that its not the head gasket. So what could it be. Is there any other way for oil to get in the coolant?

its a 92 loyale.

 

If it is an automatic,a leaking transmission cooler will put oil in the rad without combustion gases.

no water in the oil but it is overheating. only going up hill though. I just got it back from the mechanic and he said there was no leak but as soon as i drove it, bam, it started getting really hot. he tested the compression and he put the leak tester in the radiotor and nothing. How likely is it that it blew between a oil and water jacket? and if so wouldnt there be water in the oil too? when its not running you would think the water would drip down in to the pan.

 

My daughter's blew a head gasket and it wouldn't show up on my compression testor even though it pumped out steam on occasion. It is very likely it could have blown between the oil and water ports. Though you'd think the two would mix I've seen many a time when they didn't. Its weired. probably got something to do with the difference in viscosity of the two liquids. I'd give a 95% chance the head gasket's blown in at least one place. You need to R&R both sides when you go into it. Check both heads and mating surfaces for flatness. At the least lap the valves. The cracks between the intake and exhaust valves???? Don't worry about them. You may be able to go back to one of my first posts and see a pic of the cracks if they hold the pics on this forum. There is also some good info on that thread about your problem. Hey! a blown HG is alot better than a cracked block.

 

Update: Yeah. The pics are still there as well as the blow in the HG into the compression chamber. Go to "Hayne" and then "All posts started by...." Its obvious where to go from there. Hope this helps.