Fuel Sender

The fuel level 'sender' is the sensor in the tank. It does not incorporate a fuel line, although the coupe sensor has a fuel vent fitting. For the fuel outlet line, see Fuel tank.

Overview

To remove the sender, only a screwdriver and hammer is needed. Carefully drive the Lock Plate (retaining ring) anti-clockwise until loose.

Album 26610

All use same 2.5" O-ring and lock plate, including B10 and B120 through B310:

17342-18000 O-ring 17343-14800 Lock plate (also 17343-14801)

Album 24468 http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts/17342-18000_a.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts/17342-18000_b.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts/17342-18000_c.jpg

• Coupe has a vent fitting on it (non-EVAPO

• Coupe has no vent fitting (EVAPO models)

Album 19019

Part Numbers

B110 Sedan USA & JDM 25060-H1000 GAUGE-FUEL TANK 25060-H1900 1070-

B110 Coupe USA & JDM 25060-H1800

B110 Van JDM 25060-H1400

B120 JDM 25060-G1000 7510-8111 GAUGE-fuel tank [bullet connector] 20560-G1010 8112- [multi-connector]

B210 Sedan USA & JDM 25060-H5000

B210 Coupe USA & JDM 25060-H5500 25060-H7210 0974-

B210 Van JDM 25060-H6600

B310 USA Sedan, Coupe, Wagon USA, early JDM 25060-H8500 GAUGE ASSY-FUEL TANK

Sedan

25060-H1900 GAUGE (sender)

Post 488733

Album 13983 Album 24471 Album 24470

Truck

Album 19044 Album 24466 Album 24469 Post 492942 Post 492942 Post 492942 Post 486940

120Y Coupe

Album 24472

B310 Van

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/VB310_sender.jpg

Wiring

There is a single Yellow wire on the sender. It goes forward to the dash Fuel Gauge. This wire is grounded through the sender resistance.

See main article: Fuel Gauge Wiring

Sender Specifications

As measured by club members, by moving the float up and down from stop to stop:

• 10-12 ohms fully up

• 88-100 ohms fully down

• 35 ohms half full (per Nissan Factory Service Manual)

NOTE: This does not necessarily match "Full" and "Empty" marks of the fuel gauge, due to normal manufacturing tolerances. Typically a 1200 reads well 'E' before it runs out of fuel, this is normal.

Reference: Forum: Fuel sending unit specs

Fuel Gauge Specifications

From the 1973 Datsun 1200 Factory Service Manual Ohms Mark 35 Half

Stock Fuel level gauge, ss measured by club members: * Empty mark: 73-88 ohms input * Full mark: 12 ohms

ang94541 uses an aftermarket Autometer 3515, which seems to match the Nissan sender. It is designed for the 1965-1985 Ford senders. Also used by Chrysler and VW beetle (73-10 ohm gauge).

* 3515 Empty mark: 73 ohms * 3515 Full mark: 10 ohms Reference: Forum: Fuel sending unit specs 

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