Mark,
I had a similar problem and just tore down the heater valve to identify/rectify
the leaking problem. The heater valve is very rebuildable except for the lack
of replacements parts. As the heater knob is moved from hot to cold the arm on
the bottom of the heater valve forces a rubber stopper up to shut off the flow
of water. The rubber is designed to be the gasket and fluid stopper all in one
and has a tendency to crack along a seam between the stopper portion and the
gasket portion. I cleaned everything up, applied blue silicone inside the crack
and on the bottom side where the water doesn't normally hit. So far the repair
has been successful. The other option would to be purchase a new one, spitbits
has them for $32. The new option would be the best choice while my fix is more
temporary.
Rob
-----Original Message-----
Thanks to all that replied.
Based on replies received to date, the concensus appears that it is fine as
far as performance of the cooling system is concerned. Several people
recommended either draining the heater core or filling up with anti-freeze
or rust inhibitor to prevent corrosion, which would otherwise occur
relatively rapidly.
Someone else suggested installing a shutoff valve in the line going to the
heater valve to prevent water making it there in the first place,
I think I'll just bypass the little critter since I already went to the
trouble of removing it.
Cheers
Mark
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