Putting the tachometer in the console isn't optimal. To see it you'd have to take your eyes off the road for longer than a dash-mounted tacho

The factory tachometer was not designed to bolt to the console. But it will fit if you make a simple bracket to hold it in place. Perhaps you could even use plumber's tape

spacer & home-made bracket



fitting

A match for the stock 8,000 rpm tachometer was sold by Nismo

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Be careful when buying a used tachometer. This 10k tacho has the main power wire missing. Wires cut. bottom tab cut. All minor, but the power stud is missing too. Maybe can't be fixed

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This 1000rpm tacho was for sale last month starting bid $1000 but i don't think it sold?
https://auctions.yahoo.co.jp/jp/auction/f1203024367

It has differences from all the others:

* No tell-tale pointer
* Does not say KANTOSEIKI TOKYO below x 1000rpm
* legend (x 1000rpm) is below the pointer instead of SE to the pointer

It also has tape where the dash bracket would normally be

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Datsun 1200 GX came with 6800 rpm redline. The other tacho has a redline that starts at 6400 rpm

the yellow line indicates you have revved beyond peak HP


The redline is higher than a non-GX engine as valve float doesn't occur until after 6800. This is because of the dual valve springs

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the 1972 JDM facelift brought a new font typeface to the meters, new taper-cone anti-glare gauge covers ...
...and new bold color bands for the yellow zone and red zone of the tachometer

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The factory Datsun 1200 tachometer has an adjustment screw. A simple turn of the screw will raise or lower the indicated RPM. At the factory this was adjusted for a correct reading at a certaom rpm. However, as components age (in particular the capacitors) the reading may need adjustment.

Take a reading using a dedicated (accurate) Dwell-Tachometer, and if your tachometer is off, adjust it to match.

TURN
* clockwise: to lower RPM
* anti-clockwise: raise RPM

Try turning the screw 1/8 turn, and see if the new reading is what you want. You can compare the reading by connecting a dwell/tach meter to the engine, then adjust the tachometer to read the same.

Yellow Arrow points to the adjustment screw on the back of the case

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The tachometer for the Datsun 620 truck looks identical to the 1972 B110 facelift tacho with these differences:

* 7000 rpm redline
* Shorter brace tab and no top tab
* 1-wire signal with mini-harness




Unlike the B110 unit, it connects to the coil negative terminal like aftermarket tachometers. So if installing in a 1200 a new wire needs to be run out from the dash to the engine compartment.

It will accept the flat 1200 cover



In my 1200 ute, i left the facelift cover on for the anti-glare properties. The red and yellow colors matched my Momo Commander steering wheel

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The Nismo 10000rpm tacho has a tab like the standard B110 tachometers:




Is the tab for earthing or for bracing?




This one has a straight tab which appears to be in the same place:

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