| gmharlow | -- 07-05-2016 @ 3:00 PM |
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What is the correct pressure for the radiator cap on a 1936 Ford passenger car? I find them available in 4-pound and 7-pound varieties.
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| MG | -- 07-05-2016 @ 3:07 PM |
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1936 Ford's did not have pressurized cooling systems from the factory....
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| gmharlow | -- 07-05-2016 @ 3:18 PM |
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So I guess either cap would work? I find them for sale in the 4- or 7-pound versions.
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| MG | -- 07-05-2016 @ 3:25 PM |
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Again, the stock radiator was not manufactured to be pressurized - they tend to become 'bulbous' and burst on pressures over 3 pounds. Skip Haney sells a 3 pound device (pressure relief valve) that attaches to the overflow tube and it requires a cap that seals. In most cases though, a 4 pound cap will work OK.... This message was edited by MG on 7-5-16 @ 3:52 PM
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| pauls39coupe | -- 07-05-2016 @ 5:34 PM |
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Your stock 36 had an overflow tube which allows excess pressure to escape. The stock cap was not pressurized, it just acted as a seal. Adding a pressure cap alone will do nothing because the pressure will just escape from the overflow. Skip's valve seals the overflow tube to 4 psi, then your 4psi cap will do its job.
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| gmharlow | -- 07-06-2016 @ 6:31 AM |
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Thanks to all. That solves my problem.
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