The 75 and ZT Owners Club Forums - View Single Post

SD1too · 22nd August 2019, 08:51

Hi James,

I agree with my colleagues' advice. Here's your situation as I see it:

I doubt that you have head gasket failure (although you should not have allowed the temperature to reach 130 degrees).
130 degrees suggests to me that your thermostat may not be opening.
When the radiator was replaced the system probably wasn't bled properly which introduces air locks which causes coolant loss and overheating.
As said, check that your radiator fan is working by doing the 'demist test' (no tools required).
DO NOT let your garage add ANY sealing potions to your engine. They will only cause more problems from which it will be virtually impossible to recover.
DO NOT scrap the car. We can guide you through the necessary tests and recommend repairs.

Don't go quiet on us James will you. Keep posting and let us know what's happening.

Simon

22nd August 2019, 08:51	#4
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,382 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Hi James, I agree with my colleagues' advice. Here's your situation as I see it: I doubt that you have head gasket failure (although you should not have allowed the temperature to reach 130 degrees). 130 degrees suggests to me that your thermostat may not be opening. When the radiator was replaced the system probably wasn't bled properly which introduces air locks which causes coolant loss and overheating. As said, check that your radiator fan is working by doing the 'demist test' (no tools required). DO NOT let your garage add ANY sealing potions to your engine. They will only cause more problems from which it will be virtually impossible to recover. DO NOT scrap the car. We can guide you through the necessary tests and recommend repairs. Don't go quiet on us James will you. Keep posting and let us know what's happening. Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.