I for one would be looking at the simpler O rings on the oil cooler. Pulling that cooler is nothing compared to doing a head gasket. Check that the coolant lines can hold pressure and vacuum. With it, off the car, I am sure you can come up with something to do that easily.
So it is heater core time? I just put a new one in my Caddy and I did it without pulling much of it out of the car. I loosened up the motor and was able to remove that plastic cover on the side. Then I wiggled the whole thing down to where I could get at the hoses and wiring. The ground is up there and I did have a sore neck the next day but I got it swapped over without much of a mess to the carpet.I pulled the thermostat and drained the system down a bit. You will be doing that to change the water for antifreeze. Nothing wrong with putting water in there and running it a bit around town to circulate the coolant. Just didn't think leaving it to freeze up overnight would be a good idea.I think I got my heater core from RockAuto. Still have the old one. My problem was not the core but the hoses that were attached to it. Maybe I can use it as a mini radiator or intercooler.
Is that an AC car or not?Probably non-AC right? That should be easy,.. standing on your head under the dash but other than that.
Quote from: intramural on February 15, 2021, 08:05:49 pmQuote from: ORCoaster on February 15, 2021, 07:30:13 pmI for one would be looking at the simpler O rings on the oil cooler. Pulling that cooler is nothing compared to doing a head gasket. Check that the coolant lines can hold pressure and vacuum. With it, off the car, I am sure you can come up with something to do that easily.Yep. Phew! Turns out it was just the nut holding the cooler onto the flange... I think. The whole cooler was pretty dang loose when I got the hoses off, I could just spin it left and right. The nut itself was not even hand tight. The filter being threaded on was probably the only thing keeping the cooler from gushing oil. I'll probably have a radiator shop pressure test the cooler anyway as long as I have it off. The o-rings look fine to me. A thing that might get abused, is the torque of the oil cooler oring nut, its a very loose fit...If you overtighten it it will shorten the orings lifespan and could blow without warning.The torque spec is 18 ft/lbs or 25Nm just in case your not aware...
Quote from: ORCoaster on February 15, 2021, 07:30:13 pmI for one would be looking at the simpler O rings on the oil cooler. Pulling that cooler is nothing compared to doing a head gasket. Check that the coolant lines can hold pressure and vacuum. With it, off the car, I am sure you can come up with something to do that easily.Yep. Phew! Turns out it was just the nut holding the cooler onto the flange... I think. The whole cooler was pretty dang loose when I got the hoses off, I could just spin it left and right. The nut itself was not even hand tight. The filter being threaded on was probably the only thing keeping the cooler from gushing oil. I'll probably have a radiator shop pressure test the cooler anyway as long as I have it off. The o-rings look fine to me.