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Tachometer 4K Conversion

1972-34ton
October 27, 2015
 8
 0
Tachometer 4K conversion: I took a Summit Mini-tachometer, and changed the face to read only to 4,000. This is for work trucks and automatics. Challenges were finding good numbers and blacking out the junk on the face. A Montana marker may work best. It has UV-resistant dye, and matched the flat-black of this instrument better. Read more ยป
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Here is the original face, unaltered.  Problem is, my old automatic is never going to go over 4K.  So I set it on 4-cylinders, and changed the numbers.  Double the spark count.
Here is the original face, unaltered. Problem is, my old automatic is never going to go over 4K. So I set it on 4-cylinders, and changed the numbers. Double the spark count.
0 2017/01/23 20:29:36 1972-34ton
Tachometer with 8K face modified with new numbers and blacked-out 'junk'.  I like the cleaner look, and more realistic values of engine RPM shown.
Tachometer with 8K face modified with new numbers and blacked-out 'junk'. I like the cleaner look, and more realistic values of engine RPM shown.
0 2015/10/27 06:01:55 1972-34ton
The black-out ink used here is OK, but there are better alternatives.  Your light angle and source may make a difference.  This is just a work truck, so I didn't worry too much.
The black-out ink used here is OK, but there are better alternatives. Your light angle and source may make a difference. This is just a work truck, so I didn't worry too much.
0 2015/10/27 06:03:06 1972-34ton
On the other hand, I did not get the background blackout just right.  My first try with a normal fine Sharpie was a little on the shiny side.   Coverage was adequate, but not ideal.  My S.O. was great and suggested this marker, but we thought in some light it looked rough.
On the other hand, I did not get the background blackout just right. My first try with a normal fine Sharpie was a little on the shiny side. Coverage was adequate, but not ideal. My S.O. was great and suggested this marker, but we thought in some light it looked rough.
0 2015/10/27 06:02:35 1972-34ton
Our local art store was very handy with markers, and suggested some better alternatives to the shiny purplish ordinary Sharpie pen.
Our local art store was very handy with markers, and suggested some better alternatives to the shiny purplish ordinary Sharpie pen.
0 2015/10/27 06:03:38 1972-34ton
The Montana marker was the best match, as it had some sheen to it.  A flatter and denser mark was made by the Sharpie Poster Paint.
The Montana marker was the best match, as it had some sheen to it. A flatter and denser mark was made by the Sharpie Poster Paint.
0 2015/10/27 06:04:05 1972-34ton
By all accounts, these stick-on letters are the easiest way to get good numbers on the face.  The adhesive is aggressive, and it is a one-shot deal to align the letters.
By all accounts, these stick-on letters are the easiest way to get good numbers on the face. The adhesive is aggressive, and it is a one-shot deal to align the letters.
0 2015/10/27 06:04:56 1972-34ton
I like the Gothic numbers.  They come in other sizes and colors.  The cost was under four bucks, and you get a large number of individual letters and numbers.  I intend to use a flat, clear coating over the vinyl, but have not settled on a brand yet.  The artsy folks say no clear coat is needed to seal them.
I like the Gothic numbers. They come in other sizes and colors. The cost was under four bucks, and you get a large number of individual letters and numbers. I intend to use a flat, clear coating over the vinyl, but have not settled on a brand yet. The artsy folks say no clear coat is needed to seal them.
0 2015/10/27 06:05:20 1972-34ton

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