Re: Motor getting Hot
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Webmaster
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Most of the unpressurised radiators have the overflow tube below the level of the cap seal seat. So chainging the radiator cap won't many any difference, unless you sealed off the overflow tube.
Posted on: Yesterday 18:19
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-BigKev
1954 Packard Clipper Deluxe Touring Sedan -> Registry | Project Blog 1937 Packard 115-C Convertible Coupe -> Registry | Project Blog |
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Re: Motor getting Hot
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Home away from home
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Don't seal off the overflow tube!
The cap should have a gasket to prevent water loss at that point. The overflow tube inlet is located near the top of the tank to maintain water level. With the car sitting level and the engine off and cool, it should be possible to fill the radiator completely full to the level of the cap. At that point some water should run out the overflow tube until the water level is about 1/2 to 3/4 inch below the filler neck.
Posted on: Today 7:49
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Re: Motor getting Hot
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Home away from home
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Refer to the Literature archive 1939-'39 shop manual for cooling system info.
Posted on: Today 11:24
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Re: Motor getting Hot
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Just can't stay away
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After some discussion with my friend Terry Weiss, a long time Packard mechanic that lives near me, I recalled that I had removed my engine thermostat last year for some reason. We believe that the motor needs that thermostat to help slow down the water flow going up to the radiator. I can't find it so I ordered all new pieces from Maxx Merritt and will install them and find out, fingers crossed.
Posted on: Today 21:40
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