At 04:35 PM 1/29/2002 EST, you wrote:
>anyone know of a working heater core ...I could buy?
>
>jeff
>
Jeff the same core is used in Alpines and MGB's.
They all fail by first swelling up the 4" square end caps
when used with more than about a 7 pound radiator cap.
There is a center brass strip inside the ridge of the
end cap that was orginally sweat soldered. Most radiator
repair guys, do not properly sweat solder the end caps on
after a leak repair. The cap quickly swells again ( when
using 13, 15 or 17 pound radiator caps. Consider that the
core was designed long before Tigers for MG's etc with a 7
pound cap. This would be 4X4X7=112 pounds total on an end cap.
With a 15 pound cap you are at 4X4X15=250 pounds, or over
twice what the core was designed for.
I measured an end cap as only 22/1000" thick and some
of that thickness might be lead. Try replacing the end caps
with thicker brass and that might help. All the leaks I have
seen were around the end cap joint.
James Barrett Tiger II 351C and others
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