Some backstory - ever since I purchased my Jeep it's had a history of using or loosing coolant - somewhere. In the first month of ownership it got very close to overheating and I ended up replacing the radiator and I believe the water pump. Overheating issue solved, but still continued to use/loose coolant. Flash forward a few years and a few hundred miles - engine starts to run really, really rough. Notice significant smoke/vapor coming from valve cover when oil cap is removed. Checked oil - have the dreaded milkshake and abnormally high level. Knew for sure it must be a blown head gasket, cracked head or block or any combination of them. Jeep sat for about 3 months before I had a chance to start repairs.
Yesterday I drained the radiator and found a murky dark green substance that probably at one point was clean neon green coolant, and only about 1/2 a gallon was in the entire radiator, and none in the overflow. Went to drain the oil, knowing for sure I'd be greeted with my missing coolant first - but instead I got a chocolate syrup looking/consistency "oil" that smelled more like gas than the gas tank does. I've noticed in past oil changes the oil smelling like gas, but it's never been milky. If it was my missing coolant causing the contamination, or even water, it should have separated out by now right?
I plan on taking the engine out to replace the head gasket, piston rings (and possibly the pistons), assorted gaskets and bearings anyway - is there anything I need to be paying close attention to while I'm in there other than the obvious? It's a 2.5 with about 225k on the clock.
Yesterday I drained the radiator and found a murky dark green substance that probably at one point was clean neon green coolant, and only about 1/2 a gallon was in the entire radiator, and none in the overflow. Went to drain the oil, knowing for sure I'd be greeted with my missing coolant first - but instead I got a chocolate syrup looking/consistency "oil" that smelled more like gas than the gas tank does. I've noticed in past oil changes the oil smelling like gas, but it's never been milky. If it was my missing coolant causing the contamination, or even water, it should have separated out by now right?
I plan on taking the engine out to replace the head gasket, piston rings (and possibly the pistons), assorted gaskets and bearings anyway - is there anything I need to be paying close attention to while I'm in there other than the obvious? It's a 2.5 with about 225k on the clock.