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Regarding a May ' 68 build date on a L71 motor ( without expansion tank ) I read in the VetteVues Fact book that M.F. Dobbins states this motor requires a RC 15 radiator cap. However, I have been advised otherwise that RC 26 is correct..?? Can anyone comment..?? Thank you, Jeff Burkey
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Re: RC 15 or RC 26...???
Jeff-----
The RC-15 is the correct radiator cap for your application. The RC-26 is a special radiator cap for use on aluminum radiators or aluminum supply tanks. It is designed to insulate the steel/stainless steel of the outer cap material from the aluminum tank. Doing so prevents galvanic corrosion. The insulator is not necessary on brass radiators since the electro-negativity difference between brass and the outer steel cap does not create much galvanic corrosion potential.In Appreciation of John Hinckley -
Re: RC 15 or RC 26...???
Jeff-----
The RC-15 is the correct radiator cap for your application. The RC-26 is a special radiator cap for use on aluminum radiators or aluminum supply tanks. It is designed to insulate the steel/stainless steel of the outer cap material from the aluminum tank. Doing so prevents galvanic corrosion. The insulator is not necessary on brass radiators since the electro-negativity difference between brass and the outer steel cap does not create much galvanic corrosion potential.In Appreciation of John HinckleyComment
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Thank you, Joe NM *NM*
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Thank you, Joe NM *NM*
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