Coolant Flushing

[306Puggy]

As it happens I decided to flush it through using the running engine method instead of dropping the old stuff and refilling it. But instead of removing the thermostat I just ran the lump upto temperature because I didn't have a replacement gasket for the thermostat housing, which last time I had to do up using instant gasket. It worked quite well, although not as well as taking the thermostat out obviously as it restricted the flow, but after a couple of bucket fulls it was running fairly clear. The only thing I am not sure about this method is that the water from the hosepipe is cold and the engine will be hot after a few minutes running which some people might say would do the headgasket in.