How do you bleed a s52 engine with a e30 radiator?

[narodrift]

Can someone please tell me if this is even possible.

my s52 swapped e30 was running fine but the heater was not working.

I decided on changing the heater core but before I did, I decided to bypass the heater core to see if that was the issue.

Test drove the car and it was overheating and losing coolant thru the overflow on the reservoir.

Now i am thinking there is just air in the system.

There is no place on the engine to bleed the air and no place to bleed the cooling system on the radiator.

What do i do at this point?

[TH3 Shifty]

Lift the front of the car, start it and let it self bleed.

[narodrift]

I will try anything at this point. i assume with the reservoir cap off.

[Liquidity]

It’s not a reservoir. It’s an expansion tank. There’s a difference. You can’t open an expansion tank when the engine is warm or you’ll lose all your system pressure and coolant will go everywhere. Do what TH3 Shifty said.