You can maintain the look of your original tach by buying one of the small
(2") aftermarket tachs, and installing its guts using the shell, faceplate
and needle from your original tach. So long as its faceplate had the same
"sweep" (270 degrees is typical) it will read correctly. This replacement
tach had the "4-6-8" switch, as I'm sure they all do.
I have been running this setup for over ten years, after my original tach
failed to survive the negative ground conversion.
on 3/20/04 12:05 PM, Barrie Robinson at firstname.lastname@example.org wrote:
> I presume all of the people who dropped a V8 into their MGB had the tach
> problem. I already have the description on how to change the original 4
> cylinder tach to 8 cylinder but I would appreciate words on any other
> solution. If you have done a conversion/replacement I would love to hear
> about it. It could be a subject to be covered in the British V8 Newsletter !!
> I am currently trying an SD1 tach implant under the guidance of Martyn Harvey
> Barrie Robinson
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the primer red one with chrome wires