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SD1too · 4th April 2022, 09:05

It was a pleasure to meet Lida yesterday. We collected a wealth of evidence suggesting that the ex-MG Rover main dealer had simply filled the cooling system without following any of the official bleeding procedure thereby creating an airlock. The plan is that I will rectify that tomorrow.

In replacing the thermostat and plastic coolant pipes the dealer also failed to set the serrated clips correctly thereby setting the stage for a further coolant leak in future. I managed a partial improvement within the restricted access.

The new sound which Lida reported is a rattling power valve linkage in the manifold chamber. We are in the process of seeking a replacement.

Questions raised in previous posts

Suzublu; the fan is a 3 speeder and low speed is working correctly. I tested the VIS power valves actuator and it's also working.

Trikey; the fan didn't progress beyond low speed but it was running far more frequently than normal for an ambient temperature below 10˚C.
The tappets were not noisy.

T-Cut; the owner prefers to have the heating, ventilation and AC system turned off completely so fan operation was restricted to coolant temperature.

Simon

4th April 2022, 09:05	#12
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	Yesterday's assessment in detail It was a pleasure to meet Lida yesterday. We collected a wealth of evidence suggesting that the ex-MG Rover main dealer had simply filled the cooling system without following any of the official bleeding procedure thereby creating an airlock. The plan is that I will rectify that tomorrow. In replacing the thermostat and plastic coolant pipes the dealer also failed to set the serrated clips correctly thereby setting the stage for a further coolant leak in future. I managed a partial improvement within the restricted access. The new sound which Lida reported is a rattling power valve linkage in the manifold chamber. We are in the process of seeking a replacement. Questions raised in previous posts Suzublu; the fan is a 3 speeder and low speed is working correctly. I tested the VIS power valves actuator and it's also working. Trikey; the fan didn't progress beyond low speed but it was running far more frequently than normal for an ambient temperature below 10˚C. The tappets were not noisy. T-Cut; the owner prefers to have the heating, ventilation and AC system turned off completely so fan operation was restricted to coolant temperature. Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.