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Old 06-21-2015, 09:16 AM   #1
OLD 9
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70s Auto Meter Tach

Found this at a little Mom & Pop junk yard. I think its from the 70s. It has a real nice chrome case but I can't figure out how to get it apart so I can lengthen the wires. It seams to be pressed together. Any ideas? Figured it would look good on the dash of the 72.
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Old 06-21-2015, 09:54 AM   #2
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Re: 70s Auto Meter Tach

Why not add on to the wires outside of the case?
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Old 06-21-2015, 11:00 AM   #3
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Re: 70s Auto Meter Tach

Yeah, loosen the clamp that mounts to the steering column and the band that wraps around the cup to slide it off, that should help (the band and the cup may have crimped down on the meter some) with getting the cup off. Depending on the cup you may need to push wires thru at the same time as pulling the meter out. The face plate is very legible that should clean up really nice. Good find!

Alex
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Old 06-21-2015, 11:34 AM   #4
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Re: 70s Auto Meter Tach

Quote:
Originally Posted by pxwolvie View Post
Yeah, loosen the clamp that mounts to the steering column and the band that wraps around the cup to slide it off, that should help (the band and the cup may have crimped down on the meter some) with getting the cup off. Depending on the cup you may need to push wires thru at the same time as pulling the meter out. The face plate is very legible that should clean up really nice. Good find!

Alex
You wer right. Alex. Took off the clamp and things got real obvious. Now to figure out the wiring. Red is obviously lighting. The two yellows taped to a blue? Green and black? I need to do some research unless someone knows.
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Old 06-21-2015, 02:02 PM   #5
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Re: 70s Auto Meter Tach

http://www.autometer.com/resources/index/instructional
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Old 06-21-2015, 02:23 PM   #6
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Re: 70s Auto Meter Tach

I think I have it figured out. Black= ground Red= power and Green is coil or in my case Tach on the HEI. Right?
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Old 06-21-2015, 04:13 PM   #7
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Re: 70s Auto Meter Tach

Pretty cool find.

I also have one from that era. Thought about mounting it under the hood. When I did this as a younger guy it was very convenient.
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Old 06-22-2015, 06:59 PM   #8
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Re: 70s Auto Meter Tach

Quote:
Originally Posted by OLD 9 View Post
I think I have it figured out. Black= ground Red= power and Green is coil or in my case Tach on the HEI. Right?
Sounds right to me Mark... here's a diagram from a newer tach...
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Old 02-21-2016, 11:36 AM   #9
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Re: 70s Auto Meter Tach

Sent off to Auto Meter with this question. Got this back
Hi Mark,

The tach you’ve acquired is designed for Magneto styled ignition systems:
If you have this type of ignition system, then follow the wiring instructions above!
If you do not, the tach is not going to be of much use to you.


Thank you,
Tim

Anybody need a mag. tach?
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Old 02-22-2016, 09:35 PM   #10
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Re: 70s Auto Meter Tach

There's a pretty large trend nowadays of vintage race cars, and people rebuilding and restoring them may be all over that tach. Drag racing of course but the old Vertex mag was immensely popular in sprint cars, supermodifieds and ever stock cars at one time. All of them have nostalgia drags and circle track races.

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