At 02:46 AM 12/20/2001 +0800, you wrote:
>
>Are you draining the system when the engine is at operating temperature?
If you are, your method will work well provided the thermostat is open, but
if not, consider this:
>
>How are you draining and flushing the coolant out of the hose that runs
between the thermostat housing and the radiator?

When I say jack up the rear, I mean it, like the pressure tank is eye level
for me, about 5 feet off the ground. Don't try this with a Chinese jack.
Way too dangerouse. The thermo and hose are above the drain holes in the
head and air does displace most of the coolant back there.

>Blowing air into the radiator bleeder can't push the water toward the
motor because the thermostat will have that end of that >hose closed.

Well, it sure does. You can tell by the extra gallon or more that drains
from the heads after applying the air a dozen or more times. This procedure
drains at least 3.5 gallons. The remaining fluid is diluted with the water
refill and then redrained. I suggest you have less than a pint of old fluid
remaining with this drain and dilute process.

T.P. Stephens
Doktor Tim's

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