Tim,
This is exactly what I have been thinking about...I designed a nice
mechanical unit that would be a direct replacement for the original,
fully machined, and would undoubtedly out-last the car. It would use the
factory cable for control.
Then I started thinking about a vacuum controlled unit as is used 99% of
the time.
I just haven't figured out how to keep the cost low...yet!
Jim Swarthout
-----Original Message-----
Subject: RE: Next Project
I always thought it would be neat to adapt a vacuum-operated heater
control valve for use on a TR. Presumably one could find a twist-style
control mechanism for inside the car, and attach the stock Triumph knob
to it. Instead of pulling the knob outwards to open the valve (as in
the stock configuration), you would just rotate it. Then mount a
vacuum-operated control valve in line with the feed hose to the heater.
Hook up the vacuum connections (I think these things require a vacuum
reservoir, which shouldn't be too hard to adapt from some other car -
the Stag has one), and you've got a smooth working heater control.
Tim Holbrook
1971 TR6
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