Hi - I just put a new rad in my 2wd sapphire. Refilled and had it running again - but I notice a lot of air bubbles coming back into the header tank from the small return line from the turbo. Do I need to bleed system somewhere, and is there a recommended method or place to do this. Thanks.

 

Just did mine,all i did was leave header tank cap off while engine ran up to point of fans coming on,all air bubbles came out while i was squeezing the water pipes.When engine was cold i topped it up to max level on tank.

 

Put your heater on an make sure your getting hot air coming through too.