---- William Brewer <wsb1960tr3a@att.net> wrote:
> Is there a better gauge out there
> to install in a TR3A? I was thinking that maybe there is a gauge with an
> electric sending unit that still looks like the TR3 gauge or something.
The early (to CT11307, mid-1962) TR4 gauge is electric, but otherwise looks
very nearly identical to the TR3 gauge. The style, needle, pivot, glass and
bezel are all identical, the only visual difference is that one of the numbers
on the face is different. I'd have to go look, but ISTR the TR4 gauge reads to
250F while the TR3 gauge ends at 230F, or something like that. The sender fits
the same hole.
The downsides are that you'll need to add a voltage stabilizer and a wire to
the sender. The gauge doesn't work with the ignition off (obviously) and is
kind of slow to respond to changes. I do kind of miss being able to look at
the gauge to judge how warm the engine is after stopping somewhere.
But the big upside is that the gauge can no longer be damaged by overheating,
and should last forever without having to be periodically rebuilt. Overall,
I'm quite happy with mine. It also appears to be very accurate; and can be
calibrated if necessary without having to disassemble the gauge. (Although
adjusting the calibration is a lot easier if you make the little tool for the
job.)
Randall
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