The 75 and ZT Owners Club Forums - View Single Post - Coolant leak and slow speed fan not working

Mr Toad · 15th August 2019, 20:56

Thanks Simon. The evidence may be the mayo in the cap although this may be due to the fact that the car is not being used much. The thermostat was very carefully replaced and yes the two clips on the straight pipe were pushed right up either end.

I left the cover off for a couple of weeks to inspect the v periodically and there has been absolutely no leak.

I thought that the expansion tank cap has three seals. Is it sufficient just to change 2?

As a last ditch attempt to avoid having to lift the heads I am going to drain the coolant, reconnect the oil cooler, sort out the expansion tank cap and then carefully refill the system as recommended by MGR. If it then continues to leak the heads are going to be removed as I can't put up with a car that leaks coolant.

I will keep you posted!!!

Martin

15th August 2019, 20:56	#12
Mr Toad Avid contributor Rover 75 V8 tourer & MG ZTT & MG RV8 Join Date: Apr 2007 Location: London Posts: 138 Thanks: 41 Thanked 24 Times in 14 Posts	Thanks Simon. The evidence may be the mayo in the cap although this may be due to the fact that the car is not being used much. The thermostat was very carefully replaced and yes the two clips on the straight pipe were pushed right up either end. I left the cover off for a couple of weeks to inspect the v periodically and there has been absolutely no leak. I thought that the expansion tank cap has three seals. Is it sufficient just to change 2? As a last ditch attempt to avoid having to lift the heads I am going to drain the coolant, reconnect the oil cooler, sort out the expansion tank cap and then carefully refill the system as recommended by MGR. If it then continues to leak the heads are going to be removed as I can't put up with a car that leaks coolant. I will keep you posted!!! Martin