So I was doing my bi weekly check up on my 93 with 236 k on it and I checked the oil and what do you know it's turning into chocolate milk. It wasn't completely milky you could still tell it was oil but it it was starting to change. So I'm going to do a head gasket change along with the usual valve stem seals and the rms.

So my question is... Should I go ahead and drop the crank and do pistons and main bearings? Or do you think I will be fine doing the head? I really dont have the time or money to do a complete rebuild but if I have to then I will.

How often do you get it to normal temp (195-210)?

Everyday. I drive 2 miles to work and it doesn't get there in that drive but when I go to lunch it's about 4 miles and it's right at normal operating temps. That's the least I drive. The most I drive is like 20 miles to the family farm to go hunting or work on the jeep or whatever has to be done and that's only a couple times a week.

if its not burning a ton of oil, then i would just do the head and call it good.

It uses lil oil it leaks a lil oil and my air filter gets oil on it

Then there goes my theory. I was gonna say if it wasn't getting hot enough it wasn't venting the water from the oil.

Two miles to work and then four miles to lunch is still not enough for the engine to reach full operating temp and "burn" the water vapor out of the crankcase.

Wait, are you saying i gave good advice? What is this sourcery?! lol.

I heard about this on car talk, they said to just change the oil more often.

So it could be water vapor in the crankcase? Should I change the oil and run around for an hour and check it again to see if it has a lil bit of water in it?

I think it'll take a hell lot longer than an hour to build up water. But yes change the oil and check it in a few weeks.

I figured an hour was too short. Thanks man I'll do that.

Do you guys think I should go ahead and get the head work done?

Wouldn't hurt

are you ganna do the head job yourself. As far as pulling it off? Make sure to change to a brass freeze plug in the back out it while its off if you have the 4.0. Not sure what motor you have but I rebiult my 4.0 in my old XJ in about a week with pulling it rebuild and putting it back in and going to work. If you have time and the budget do it why wait. JMO

At 236K on the odometer, I would not do only the head. if this were my rig, I would change the oil and drive it longer every day and see if there is still an issue. if there is no longer a problem I would maybe change the oil more offten and driver longer routes. If you're still having a water in the oil problem, then I would either look for a used engine with less mileage and swap it in, rebuild the whole engine that is in the Jeep, or rebuild a used engine and keep driving with the "problem" engine until you're ready to swap in the newly rebuilt engine. So many choices.

I was thinking about while the head was off honing the cylinders if they weren't that bad and putting new rings on. Would that work or would you do the while rebuild?