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[Datsun 1200 encyclopedia]

Fuel tank

Revision as of 23:22, 19 December 2014; view current revision
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Category: Fuel System

Datsun 1200 uses a 38 or 40 liter petrol tank.

Contents

Capacity

  • Sedan: (40 liter, 10.5 US gal)
  • Coupe: (38 liter, 10 US gal)
  • Wagon: (38 liter, 10 US gal)

Mounting

Sedan tank is inside boot, just behind rear seat:
3527.jpg 13984.jpg

Coupe tank is undernearth car, under the boot area:
3528.jpg 2134.jpg

VB110 wagon tank
3529.jpg

Truck tank
19621.jpg

Gas Cap

See main article: Fuel Cap

Fuel Sender

The fuel level 'sender' is the sensor in the tank.

See main article: Fuel Sender

Return Line

Starting in 1975, North American B210s were fitted with a fuel return line. Here's what the Nissan publication "Introduction of Datsun B210 (1975 model)" says:


Fuel return system

For preventing abnormal fuel temperature rise, the fuel return system has been installed. In this system, fuel from the fuel tank is delivered to both the carburetor and fuel tank.

The fuel return line services to return a part of the fuel to the fuel tank to suit different engine operating requirements, preventing the possibility of fuel heated flowing through the fuel line inside the engine compartment, and elminating "percolation" inside the carburetor.

Venting

Datsun 1200 in most parts of the world vents the fuel tank to the atmosphere. A simple hose loop goes from the filler tube up above the tank and back down towards the ground. The loop is to prevent a siphoning effect.

  • 3527.jpg 3528.jpg 3529.jpg th_Fuel_tank_vent.jpg

EVAPO

In Australia after 1978, and Japan after 1974, and all years in North America 1200s used the Evaporative emissions control system.

With EVAPO, the tank is not vented directly to the air. Instead, fumes are captured by the Evaporate Emission control (EVAPO) system. For details, see Fume Control.

7798.jpg 19621.jpg 20531.jpg

Filler Hose

Coupe

USA B110 coupe tank

18602.jpg 18603.jpg 18604.jpg 18605.jpg

Sedan

Note that the USA B110 sedan tank uses a 2-piece filler hose (there's a small hose inside the bigger one). This is for the EVAPO (emissions market) vehicles:

9715.jpg
Two-piece curved filler hose for EVAPO system

This hose is NLA (No Longer Available) in US, Canada or Japan. However, the regular single hose can be fitted as follows:

9716.jpg
Straight one-piece filler hose for non-EVAPO system

The hose looks like this:
9717.jpg
Filler Hose Comparo

9718.jpg9719.jpg9720.jpg
Filler Modifications

Discussion: Need Fuel Tank!!

Coupe Tank

25547.jpg

Vent hose loop
22648.jpg

Vent hose loop (end hangs free, vents to atmosphere)
th_100_5187.jpg
Fuel sender vents to filler hose

Fuel Outlet is on bottom half of tank
th_100_5235.jpg

Fuel Outlet goes back
th_100_5240.jpg

US EVAPO

Expansion Tank is a liquid/vapor separator. This was replaced by a check valve in the B210 sedan, while B210 coupe continued to use the separator tank. In the B310 this tank was removed and all models used the check valve.
th_PICT0217.jpg

17350-H1801 ASSY-TANK RESERVOIR
17350-H1802 ASSY-TANK RESERVOIR

20427.jpg

22647.jpg

Diagram
20428.jpg
See Coupe Fuel Tank Part Numbers

Truck Tank

17251-G1001 CAP ASS'Y-filler
17251-H1901 CAP ASS'Y-filler EVAPO 1973

Early plain tank
th_052-01a.jpg

Late tank, 1989 October - 1994
25589.jpg

EVAPO

Reservoir tanklet was added March 1973 in Japan

1978 in Australia.
th_Ute_fuel_tank-reservoir-type.jpg 24465.jpg th_053-01a.jpg

Return line was added October 1989.
th_C17-01.jpg

B210

B210 Sedan Tank is similar to B110 Sedan tank

photo

Compare to B110 SEDAN tank
3527.jpg

Parts Sources

  • Nissan. In North America, call Ericksen Nissan's toll-free number. If Ericksen says they can't get a part let us know (click "Edit" and add it to this article). Also, if they do get the part for you, let us know that too!
    • NOTE: Nissan USA is out of stock forever of the Sedan hose. But perhaps they can get the Coupe hose.
  • Wreckers, if you can find a 1200 in a wrecking yard
  • Friends with parts cars
  • Marine supply stores, for general fuel hose and filler hose. NAPA and other old-line auto parts store carry this generic fuel-rated hose also. Trimmed to length using the old filler hose as a guide. It is tough getting it to flex into shape, but can be done.

Photo Index

Sedan Tank factory Baffling:
12328.jpg

Coupe

th_100_5192.jpg th_100_5235.jpg

22649.jpg