1984 Nissan Z24, not the (i) model, its like the first year of a throttle body, I cut all that out and put on a weber 32/36 carb
I had to replace the last engine for my own reasons, and so I have to trust the used engine seller who said it was tested.
I finally installed the engine and the carb and I am getting coolant in the rear cylinder (#4 on a straight 4)
I want to rule out a head gasket since I have to trust the sellers, and I tested the scrap engine on the ground to see how easy it would be to pull the head and reinstall it and I had a very hard time getting the timing chain sprocket installed. Besides the other problems i would face such as needing new egr piping, since the old ones aren't gonna come off easy, and gaskets, i would really like to rule out every possible issue before i pull the head.
I am not experienced. so I can't say I hooked up the carb correctly. there are only a few coolant hoses that run to the motor, one of which comes in directly under the carburator.
I don't think thats the issue though, i was careful to hook things up. I am asking: do you think a bad valve such as a pcv or egr, or thermostat, hooked up incorrectly or malfunctioning would send a lot of coolant into the cylinder. its not vapor... its droplets on both #4 plugs. (it has intake and exhaust plugs for emmissions)
I believe i am also getting coolant in the oil. Are you going to say head gasket without a doubt?
You said you have to trust the seller. Are you nuts?
head gasket.
I don't see how else it can get it. Especially if it's in the oil too.
Either a head gasket or cracked cylinder head are most likely. Another possibility if coolant flows through the intake manifold would be for a defect letting coolant in through the intake valve. It's hard to see any other path for coolant to get into the cylinder. As with buying a used car you can't trust what a seller tells you about a used engine.
