| autoluke | -- 10-16-2017 @ 4:16 AM |
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Installed a new Champion radiator on my '41, and the operating temperature has dropped 20 degrees. First trip on the highway resulted in a blown radiator hose, leading me to believe that the .9 cap ( 13psi ) might be overkill for this system. Suggestions for a lower pressure cap ?
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| 40 Coupe | -- 10-16-2017 @ 5:23 AM |
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The original system is not sealed. There is a overflow tube open to atmosphere and it did not use a pressure cap. 13PSI is too much pressure for an original style radiator and will bulge the top tank. You may want to reduce the cap pressure to 3.# or less!
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| TomO | -- 10-16-2017 @ 7:25 AM |
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You can purchase a 4# cap from most vendors and that is what I use. Tom
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| 42merc | -- 10-16-2017 @ 10:27 AM |
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The Champion radiator will tolerate 16lbs. Your hoses in good condition will handle 16lbs when used with the later style hose clamps. If you have a hot water heater, then use no more than a 7lb cap, that's what I run. This message was edited by 42merc on 10-16-17 @ 10:29 AM
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| autoluke | -- 10-16-2017 @ 11:58 AM |
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My main concern is that 13 lbs might be too high for the old engine, leading to gasket failure. Now on the hunt for a 4 to 8 lb cap that will fit the neck.
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| autoluke | -- 10-18-2017 @ 11:50 AM |
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Glad to report that a Stant #10228 fits perfectly on the Champion, with pressure of 7lb.
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