Good that the heater is working and that the lower hose is now hot - sure as Simon points out leaks prevent pressurisation but I wouldn’t be surprised if there were still a few air bubbles hiding: we’ve got four 75s at home, two have been absolutely no problem to bleed, one took several test drives to fully bleed as we kept finding air coming out of the bleed screw, and the fourth was just about impossible, totally defeated the ex-Rover dealer garage despite months of effort, and allowed me to buy the car as “spares”. It sounds like you’ve almost cracked it but if you dare touch it, loosen the bleed screw while the engine is running - air or coolant ?
Regards
|