Posted by wayneh [73.173.194.50] on Thursday, November 27, 2014 at 12:02:41 :
So the gasket that is part of my radiator cap fell apart and I need to replace the cap. The PIF files show NAPA 7031400 or Stant 10203 since my truck is a 56 C3. Is the correct cap for this truck supposed to seal the radiator down into the neck about 1 1/4" from the top of the neck, or is it supposed to seal it at the top of the neck which is also above the overflow vent? I believe since this is a non-pressurized system (true??) it would seal it at the top of the radiator neck and once the water warmed up and expanded it would just drip out the overflow.
Thanks and happy Thanksgiving.
Wayne
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