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Old 03-15-2010, 05:54 PM   #4
DOCTORBILL
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Join Date: May 2005
Location: Eastern Washington State, Washington
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Talking Re: THE PHOENIX Lives AGAIN ! - It's Alive, It's Alive !

Rooy - Why not ? Because the metal expands and everything tightens up when she's hot ?

I guess, if that is true, that it is not good to drive with a cold engine.

Maybe that is why I blew the head gasket at 30,000 miles on the Head Job...

Maybe the metal hadn't warmed enough and the Head Gasket was too loose for the pressures of driving...(?)

In any case - The Phoenix ran like a top to work today - 70 miles round trip.

NOTED - the Temp Gauge fluctuated a lot from somewhat hot back down to midway.

After I got out of Classes (5 hours), I checked the Coolant - had to add about a cupful.

Then it ran steady as a rock at about 1/3 up from cold (180° New Thermostat) all the way home.

BUBBLE in the system - I am sure.

It takes a long time for these Metros to get all the air out after one drains the Radiator...

It needs an Air Bleed - like my Nissan Pathfinder has up high on the engine block !
The bubble appears to reside in the Water Pump - Thermostat region.

General Thought -

If one could pull a vacuum on the Radiator Filling Cap, one could suck the air out of
the line and have it come to the top of the radiator.

Alternate suction and release (no wiseass comments, please ) would "pull" the
air out from deep inside allowing coolant to get in there.
The bubble would expand - rise to the top - then contract, pulling Coolant back where the
bubble had been. Repeated Vacuum and release would work it out...

Is there a port somewhere high up in the Throttle Body where one could put a vacuum
hose and suck the air bubble(s) out - then cap it off when Coolant comes out the hose ?
All the while adding coolant in the radiator....

DoctorBill
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