Woznaldo
23-11-2008, 03:07
Before the flush my temp gauge was sitting at the top of the middle third and I wanted it to sit in the centre of the middle third. The radiator is a new std Renault Valeo unit.
Head gasket is newish and the coolant level hasn't moved since the gasket change so, no leaks.
After reading countless threads about flushing the coolant out, I thought i'd give it go to see if things improve.
I disconnected one hose from the header tank and let it drain, I then stuck a garden hose in the end of the disconnected hose and ran cold water through the system for 10 mins, by which time it was running clear. I then disconnected the other header tank hose and repeated the flush back the other way until the coolant was running clear.
Next I hooked up all the hoses back to the header tank and filled and bled the system with water only. I fired up the motor and let it get up to centre of the middle third on the gauge. I also noticed that at this point that the rad top hose and rad were cold. The thermostat didn't open until 4/5 up the middle third of the gauge?
Also noted that the rad fan doesn't kick in until top of middle third on the gauge?:(
Is the above normal for the rad fan and thermostat?
The engine has been drained again and is being given a couple of hours to cool before flushing with cold again.:coffee:
Head gasket is newish and the coolant level hasn't moved since the gasket change so, no leaks.
After reading countless threads about flushing the coolant out, I thought i'd give it go to see if things improve.
I disconnected one hose from the header tank and let it drain, I then stuck a garden hose in the end of the disconnected hose and ran cold water through the system for 10 mins, by which time it was running clear. I then disconnected the other header tank hose and repeated the flush back the other way until the coolant was running clear.
Next I hooked up all the hoses back to the header tank and filled and bled the system with water only. I fired up the motor and let it get up to centre of the middle third on the gauge. I also noticed that at this point that the rad top hose and rad were cold. The thermostat didn't open until 4/5 up the middle third of the gauge?
Also noted that the rad fan doesn't kick in until top of middle third on the gauge?:(
Is the above normal for the rad fan and thermostat?
The engine has been drained again and is being given a couple of hours to cool before flushing with cold again.:coffee: