you can always use a 7# cap and close the system. as many of us do.
jerry wall
Doug Newton wrote:
>
> Hello again everyone- I replaced my original radiator core in my '65 BJ8
> with a new style core with more cooling tubes inside, using the stock top
> and bottom of the original radiator. I did all this because the newer cores
> are designed to handle higher pressures, which allows the boiling point
> inside to increase as in conventional cars and the cap will "puke" out the
> coolant at higher temperatures.
>
>
>
> Anyway, since the stock Healey radiator cap only handles 7# of pressure,
> unless I get a cap that can handle 10 lbs. of pressure, then I have lost the
> benefits that the new style core allows. Healey radiators have a 1" deep
> fill neck and most new style radiators have a shorter one; in other words, I
> need to come up with a radiator cap that is designed to fit a stock Healey
> Neck (1" deep), but has 10# rating.
>
>
>
> I should note that I have been advised that using a radiator cap with more
> than a 10-12# rating could cause the top or bottom of the original radiator
> to rupture.
>
>
>
> I guess I could have the original neck replaced to a shorter version, but
> that would be my last resort.
>
>
>
> Has anyone other than myself run into this problem and would you mind
> sharing the brand and part number of a radiator cap that would work for my
> application?
>
>
>
> Please advise & thanks- Doug
>
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