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[Datsun 1200 encyclopedia]


From Datsun 1200 Club

Datsun 1200 encyclopedia | Recent changes | Edit this page | Page history | Switch to MediaWiki mode

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Categories: Body Electrical System | Options

Optional for the Datsun 1200 was an 8,000 RPM Kanto-Seiki tachometer. It was usually housed in the round-gauge instrument panel to the left of the speedometer. It may also be placed in the optional floor console.



1972 USA Owners manual

Page 08   Page 09
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The tachometer is electrically operated and indicates engine speed calibrated in hundreds of revolutions per minute (rpm). two color zones are on its face. For normal driving, your vehicle should be driven in the yellow or non-color sectors.

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Options - Tachometer was optional on DX or GL round dash models. Standard equipment on the GX.
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S1 | SSS
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Ute can be retro-fitted with a tacho. No factory tachometer is listed for Sunny Truck, but only a Clock. Even so it is common to see tachometers installed in 1200 Trucks, as they fit the same.
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Bottom stay is the ground/earth point
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The factory Parts Catalog shows GL came with a clock in the dash, while the GX came with an 8,000 RPM tachometer in the dash and the clock was moved to the floor console.


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Dash Fitting

Mounting tabs (red arrows). The plastic lens is attached with three smaller screws (yellow arrows).
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Remove the facia with attached gauges from the dashboard
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Unscrew the blanking plate
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Finally, use the three screws to attach the tachometer
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Tacho in dash, blank plate in Console

factory GL configuration

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Tacho in dash, Clock in Console

factory GX configuration

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Tacho in Console

Specials Datsun 1200 SSS and Datsun 1200 S1 placed the tachometer in the floor console. It is preferable to have the Tachometer at eye-level, however these models came with square-gauge dashes so the large round tachometer was placed in the console.

SSS | S1
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The factory tachometer was not designed to bolt to the console. But is will fit if you make a simple bracket to hold it in place.



Part Numbers

#H18 24855-H1800 1200 TACHOMETER 8000 RPM [6400 redline]
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#H23 24855-H2300 1200 TACHOMETER 8000 RPM GX
#24855-H1075 1200 FACTORY RACE TACHOMETER Calibrated to 10,000 RPM with adjustable redline needle
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#H31 24855-H3100 1972 B110 8000 RPM [Facelift] (Except GX)
#H34 24855-H3400 1972 B110 GX 8000 RPM [Facelift 6800 redline]
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364/384 facelift tachometer plastic on old-style tachometer
364tacho.jpg 364tacho_.jpg

26061-B140 Allied Engineering for B140
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H18 is the Coupe Applied Model Code. This same tachometer was optional on Sedan.

24855-H1800 1200 TACHOMETER 8000 RPM [6400 redline]

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24855-H1800.jpg 24855-H1800_.jpg 24855-H1800-.jpg


The 1972 minor facelift made several changes to the tachometer.

H31: DX, GL option (6400 RPM redline)
#H34: GX with 6800 RPM redline

New anti-glare cover (cone shaped)
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New Font, new colors
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Now includes long stay to reach hooded facia
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Gauges have long-reach brackets, but old tacho will bolt up
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Old tachometer installed using flat-plastic cover

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1972 minor facelift tachometer came with new plastic anti-glare cover (cone shaped).
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New Font, new colors
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#H34 - includes long top stay to reach hooded facia (GX: 6800 RPM redline)
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H34 with original wiring (current loop)
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620 Tachometer

The Datsun 620 truck tachometers fits Datsun 1200 and looks very similar. But 620 models with L20B engine have 7000 rpm red line (1200 tach has 6400 or 6800 rpm redline).

1976-1979 USA 620 Tachometer [7000 redline]
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620 in Japan did not have a factory tachometer option.

1972-1975 early 620 USA
* 24840-B6400 KIT-TACHOMETER OP -0775
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1976-1979 late 620 USA
* 24855-B8000 ASSY-TACHOMETER OP 0875-
* tachometer wiring is built into every 1976-1979 620

The later Tachometer Wiring is different. It is a typical tap connection, instead of the Datsun 1200 'passthru' induction wiring.


1200 and 620 tachs are wired completely different. See Tachometer Wiring.

620 Tachometer has no wiring loop:

Early 1200 Tachometer has wiring loop:
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Bprojects Sunny Truck tachometer, looks like genuine dash tachometer, but has different redline. It mounts in the dash, and is lacking console mounting brackets.

6500 RPM redline
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Green to Illumination
Black to Earth
Red to I/G 12V
Yellow/red to ignition coil - (minus)

b110-tacho-007.jpg b110-tacho-008.jpg b110-tacho-005.jpg b110-tacho-006.jpg b110-tacho-004.jpg

Nissan Competition

1984 Nissan Competition Catalog


#H18 24855-H1800 is the stock factory OPTION tachometer

#24855-H1075 is the 10,000 RPM tachometer

10,000 RPM Tachometer

Sunny Sport option
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As you can see, the 10k tachometer has the same case, same font, same wiring. Only the faceplate is different and a moveable tell-tale pointer has been added.
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This one appears to be using the standard lens, with the tell-tale knob having been removed, wires cut, power post missing, and lower mounting bracket hacksawed off
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12,000 RPM Tachometer

Kanto Seiki 12,000 RPM tacho.
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Mechanical Drive

Datsun Competition offered a mechanical tachometer.


Aftermarket Tachometers

Photo Index

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rev counter tacho tach rpm gauge タコメータ 

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This page has been accessed 46,869 times. This page was last modified 22:30, 7 September 2019. Content is available under Datsun 1200 Club.