It is very easy to just drain the blocks and fill them up with AF through the hoses on the t-stat housing. It probably takes less time too. The advantage is that you don't have to worry about whether or not the thermostat opened, and you are getting more pure AF in there. It gives you a good reason to inspect your hoses while you're at it.
Just use the muffs to flush with fresh water before you do it.
I would be afraid that the water coming out of the garden hose might be cold enough to keep the thermostat from opening this time of year in a motor with a properly functioning cooling system, that's one of the resaons I opted not to use the gravity bucket method.
Just use the muffs to flush with fresh water before you do it.
I would be afraid that the water coming out of the garden hose might be cold enough to keep the thermostat from opening this time of year in a motor with a properly functioning cooling system, that's one of the resaons I opted not to use the gravity bucket method.