Hey Scotty,
I recently bought a 1989 Rx7 Turbo. It hasn't been moved for some years but everything went well and I drove it for almost 2 months. I decided to flush the coolant and did it following your videos on it.
So I drained the radiator and flushed the system with water. I read that the engine takes 8.7 liters of coolant so I mixed exactly this amount. But after about 5-6 liters it was full. Even after starting the engine and letting it run for a few minutes the coolant moved around but the level didn't go down.
Is it possible that the pump isn't sucking strong enough or something like that? The tube that goes to the engine doesn't seem to be completly filled; should I just pour it in there, so that there is no air in the way? Or did I maybe missed something obvious?
My other suspect is the thermostat. It should open at a higher temperature. So is it possible, that the new coolant just didn't get into the engine itself since it takes longer for my engine to warm up?
Thanks for your help! If you know a bit about rotary engines and are fine with it I would also have some more rotary specific questions to ask 🙂
Thanks again
Musa
You probably haven't gotten the air out of the heater core. Raise the front end on ramps, a jack and jack stand, or a sloped driveway, if you have one, run the heat at max hot and max fan speed while the engine is running. Check for hot air. If no hot air, there's still air in the heater core.
Feel the upper radiator hose, or put your hand near it to confirm if the thermostat is indeed opening. It won't get hot until the thermostat opens. If the car starts getting hot and the hose doesn't feel hot, there's an issue with the thermostat. Check the heater core first.
