The early radiators are just designed for a lower operating pressure. The
wall thickness of the material is probably thinner, the top tank is
fairly large and will look like an inflated ballon if you run too much
pressure.
Ulix
On Mon, 10 May 1999, Gronberg, John wrote:
> Last week I asked a question about the various pressure (radiator caps) used
> on vertical and cross flow radiators. We all know the early vertical flow
> radiators used a 7 pound cap and the later vertical flow radiators used a
> higher capacity cap. Some respondents to my early question indicated the
> top and bottom tank can actually "bow" out from excess pressure. I don't
> understand why the vertical flow radiators are more susceptible to this
> pressure sensitivity? Aren't the horizontal flow radiators susceptible to
> the same thing? My vertical flow is a soldered unit, the one on my 89
> Mustang is a "glued" one. How is it that a soldered vertical flow radiator
> (1965) is more susceptible to pressure that a glued (1998) horizontal flow
> radiator?
>
>
Ulix __/__,__ ___/__|__
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'67 Sprite '74 X1/9
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