Hello again,
Thanks for your good replies & offers regarding a replacement tach for my
car, but I've got one more question...
Does anyone know how a factory Spridget tach is wired in? Specifically,
where is the "Loop" is wired to? I assume one side is grounded and the other
goes to the negative side of the coil.
As you can read below, my mechanical tach was poorly converted (when the
toyota engine was installed) to electric and was wired in the same way most
after-market tachs are, using four wires: grnd, +12(tach), +12(lights) and
the negative side of the coil.
So how would I wire in an original Spridget tach that has been converted to
negative ground?
Thanks,
-Drew
-----Original Message-----
From: Andrew Griffith
Sent: Wednesday, December 02, 1998 8:24 AM
To: spridgets@Autox.Team.Net
Subject: Tacometer Questions.
Morning fellow listers,
Well I finally got around to pulling the dead Tac out of the '62
Sprite that I bought this past summer. I was hopping that it was never
converted to negative ground, but most of my problems are never that easy.
Was surprised to find out from you guys that the original was mechanical.
To my surprise I found that one of the PO tried to put the guts of a
modern Tac inside this original Smiths case. Looking at the Tac you couldn't
tell that it had been worked on... but inside it was all kludged up. The
workings were never fastened down, styrofoam was cut to fit it in tight to
keep it from rattling around. No wonder it wasn't working. The funny thing
is about this tac, the guts were from a 250 -270 degree tac so the Smiths
numbers were all off. This guy had to apply some correction factor every
time he looked at it, good grief.
So now I'm shopping for a second hand Smiths tac for a Sprite, and I
need to find out...
1. Are all Spridget tacs the same?
2. What about size?
3. Was the tac model type changed much from year to year?
4. Do different model years have different red lines? My case has a 6
or 6.5K red line and I'd like to go higher.
5. Any suggestions?
6. Anyone have a positive or negative ground tac for a reasonable
price?
Cheers,
-Drew
'62 MKII Sprite w/ no name yet.
"It's not a car... it's a way of life"
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