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Quote:
Originally Posted by Old Redneck
. . . I got a 170 thermostat to install. So far the heater blows cold air no heat? I an also installing a Radiator Overflow Tank because when I got home the Radiator was a little low. Thanks for the information and that a big help.
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The heater controls are usually vacuum operated with a valve on the side of the heater box above the left foot of the passenger. There may also be a vacuum operated water control valve on the front of the intake manifold just above the thermostat. The new/replacement valves are made 'off-shore', they are pricey and tend to leak or fail quickly.
If it isn't operating you'll get no hot water flow thru the heater core.
Fyi, if you're installing a 'large opening' thermostat the install instructions say to cut a portion of the lower tube off the valve, to clear the back of the thermostat.
Heated coolant expands a bit so it is normal for the coolant level in the radiator to be an inch or so below the neck of the upper tank when cold.
The "Knowledge Base" link on that page opens another document with water flow tests and graphs.
the T-Bird water pump spacer is still necessary, quoted from the High Output Water Pump page... (
bold added)
"
The pump only fits on Thunderbird engines. They can be identified by the 1" or so spacer that is situated between the water pump and the timing chain cover. It is the extra room created by the spacer that this pump exploits with extra fins on the back of the water pump impeller."
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