Modification for the Reproduction In Dash Tach
by Robert Moses
This modification is required to allow the Tach to mount
flush with the back of the instrument cluster.
In the first picture you will notice that the reproduction Tach(left side
of picture), has a gap of almost a 1/4" between the lens and the instrument
Compare the gap to the speedometer and the gauges.
Use a razor blade or Exacto knife to trim the two plastic
layers between the lens and the housing at the mounting locations as shown
in the next picture.
Removing the two layers of plastic at the mounting locations
will allow the Tach to mount flush to the back of the dash cluster, just
like the original
This last picture shows the reproduction beside an original
so that you can observe them side to side.
The numbers of the reproduction are larger than the original and the small
screws on the front of the face are not the same, this was not an issue
Another modification that you may want to consider is to
disassemble the reproduction Tach and paint the inside of the housing. Because
of the way the reproduction Tach is designed there is a "halo"
of light around the face of the Tach when the dash lights are on. If you
disassemble the reproduction Tach and paint the inside of the housing this
halo is almost totally eliminated. I would recommend a gloss black paint
be used. On my project I used a semi-flat black paint and this caused the
reproduction Tach lights to be slightly dimmer compared to the speedometer
and the gauge lights.