Got the "new" engine in the Grand Maruis. It ran terrible! Turns out 20 year old intake manifold gaskets are not reusable despite what yahoos on the Internet say.
Put new I/M gaskets in and fired it up. Full of coolant , belt, etc. It ran for 15 or so minutes and got up to 225 before I killed it. I felt the thermostat not opening. Pulled off the hose and found ...
Well that's not ideal. That's oil. It plugged the passages to the temp sensor for the gauge cluster so that wasn't working but I had an OBDII scanner hooked up and was able to read the cylinder head temp that way.
I think I've ruled out a bad head gasket - no coolant in oil. I vaccumed out the paste, flushed everything and refilled again. Ran it for a while and the thermostat did open, gauge worked and with the AC running on a 95 degree day it never got about 197 - which is exactly where a 195 degree thermostat should run. It didn't over heat or start pushing a weird frothy mixture out of the radiator cap like my 5.4 did.
When I got this engine there was some residual oil in the coolant passages. I replaced the oil filter housing gasket and tried to clean it out but may have been bad.
Unfortunately I had the heater core hooked up for that first run. So now I need to try to clean that up so it doesn't plug. And flush out the rest of the system to get the oil out.
Anyone have any suggestions? Dish powder? What should I use?
Put new I/M gaskets in and fired it up. Full of coolant , belt, etc. It ran for 15 or so minutes and got up to 225 before I killed it. I felt the thermostat not opening. Pulled off the hose and found ...
Well that's not ideal. That's oil. It plugged the passages to the temp sensor for the gauge cluster so that wasn't working but I had an OBDII scanner hooked up and was able to read the cylinder head temp that way.
I think I've ruled out a bad head gasket - no coolant in oil. I vaccumed out the paste, flushed everything and refilled again. Ran it for a while and the thermostat did open, gauge worked and with the AC running on a 95 degree day it never got about 197 - which is exactly where a 195 degree thermostat should run. It didn't over heat or start pushing a weird frothy mixture out of the radiator cap like my 5.4 did.
When I got this engine there was some residual oil in the coolant passages. I replaced the oil filter housing gasket and tried to clean it out but may have been bad.
Unfortunately I had the heater core hooked up for that first run. So now I need to try to clean that up so it doesn't plug. And flush out the rest of the system to get the oil out.
Anyone have any suggestions? Dish powder? What should I use?