Re: Radiator Cap
Like was posted earlier if you have a stock 39 radiator it wont build pressure. If it has the overflow tube coming straight out of the center of the top tank then you know it wont build pressure because its just open to the atmosphere ,so it wont matter if you have a pressure cap or not. I took my radiator to the shop and had them plug the overflow pipe with solder where it comes out of the top tank and then had them solder in a tee where the overflow pipe runs beside the radiator neck and drill a hole in the radiator neck and soldered the tee there. It still looks stock other than than that small tee at the neck plus I can now run a 7# pressure cap . Ive been in some really hot weather stuck in traffic and it didnt loose any water.
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