Radiator Cap Rating ???

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Radiator Cap Rating ???

Postby Dennis H. » Sun May 16, 2004 10:01 pm

In replacing my radiator cap, the old one was rated at 7 lbs. The auto parts store only had a replacement rated at 13 lbs. Am I asking for trouble using the new one? Can't find anything in the manual that addresses this.

Thanks.
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Postby OregonCub » Sun May 16, 2004 11:48 pm

Dennis
You should be safe with a 4psi cap from NAPA [No. 703-1412]
I installed one on my '52 Cub and it tested at 4psi on the radiator using air pressure[reduced] applied at the radiator drain.
Bob
Have 52 Cub. It, like me, has non- OEM parts!
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Postby John *.?-!.* cub owner » Mon May 17, 2004 8:16 am

Dennis H, Remember, these radiators are old (unless you compare them to me) and weren't designed for much pressure, so I wouldn't use the 13 pound cap. get the 4 pound one, or a non pressureized one.
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