heating problem have changed every thing possible

 

more details on what you already changed, maybe air bubble in the the system let it run with the cap off til it reaches operating temp adding more coolant if the level goes down

 

its a renix motor it has no cap on the radiator. check your overflow bottle/ whatever it is lol near the passanger firewall, to make sure everything still hooked in tightly and add fluids. mine got hot a cracked so now i have one from a vw GTI lol

 

when I had my closed loop setup, I waited till it started running hot then wedged a screwdriver in the thermostat housing hose lifted up and it vented all air. took a total of 5 minutes to do.

 

easy to just fill ip the pipe that comesaout of the water pump the one that has the heater hose. Primed mine right up

 

That worked for me one time when I was doing cooling system work.

 

Make sure that your fan is running. I wired my electric fan up to a toggle switch so i can turn it off and on in case in forging a river or something

It will overheat pretty quick without the electric fan running.

 

another purge air method:

1 wait to the motor gets cool
2 lift the rear diferential about 3 inches with a jack
3 unscrew the temp sensor. is located on the head close to the firewall, pilot side
4 let the air out
5 screw with some teflon tape