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Revision as of 10:38, 19 August 2016

An electric fuel pump can be fitted if the stock mechanical Fuel Pump goes bad. Carburetor applications call for 4 psi max, so using a low-pressure pump is recommended.

1 Overview
2 Nissan
- 2.1 Nismo
3 Aftermarket
- 3.1 Mitsuba
4 Regulator
5 EFI Fuel Pump
6 Wiring
- 6.1 DIY
  - 6.1.1 Improved Pump Relay Circuit
  - 6.1.2 Inertia Safety Switch

Overview

Also see Fuel Pump Blank

Advantage:

Easy to troubleshoot
Primes the carb fuel bowl

Disadvantage

Extra wiring needed
Noisy
Danger of fire in a crash if pump keeps pumping fuel. For safety fit a crash relay.

Nissan

Stock on newer Nissan Patrol and Datsun 720 pickups:

W0133-1601714 Nissan 720 OE Service Fuel Pump
16404-28500 filter
Beck/Arnley 1520741 (Rockauto.com)

16420-E0100 BLANKING PLATE A-series, E-series, Z-series

Nismo

CAUTION: Since these draw a high current, wire with a dedicated 10A fuse circuit

2011 Catalog

17010-A7600 High-Flow Volume Fuel Pump (General-Purpose)
- Price: 11,500 Yen
- Output Volume: 1.3L/min (at P=29kPa, 0.3kg/cm2)
- Outside Diameter: 60 mm
- Length: 140 mm
- Intake: 8 mm (~1/4 inch)
- Outlet: 8 mm (~1/4 inch)
- Current: 7.0 amp
- Carburetor-use, electromagnetic piston type, with insulator

17010-RR710 High-Flow Volume Fuel Pump (General-Purpose)
- Price: 40,000 Yen
- Output Volume: 3.6L/min (at P=29kPa, 0.3kg/cm2)
- Outside Diameter: 60 mm
- Length: 160 mm
- Intake: 12.2 mm (slightly under 1/2 inch)
- Outlet: threaded M12 x 1.5
- Current: 7.2 amp
- Roller Vane type

1984 Nissan Competition catalog

FUEL PUMP & COMPONENTS
17010-A7600 ELECTRIC FUEL PUMP
 Due to 7 PSI, a regulator is required
16404-29900 REPLACEMENT FILTER
 For use in 17010-A7600 
16420-E0100 BLANKING PLATE 
 Required when removing stock fuel pump

17010-A7600 NISMO High Volume Nissan type "Transistor"
- 16404-29900 Replacement Filter
- 16420-E0100 Blanking plate (for A-series engine fuel pump) $12.08 USD

Aftermarket

Universal, about $40

Rockauto - Airtex universal kit

Mitsuba

Mitsuba Part Number FP-3

Regulator

Because most electric fuel pump output more than the Weber recommendation of 3.5 psi, a regulator may need to be used.

Album 564

EFI Fuel Pump

Electronic Fuel Injection generally requires a medium to high-pressure pump.

See main article: EFI for A-series engine

See Fuel System

Wiring

The fuel pump is best wired up with a relay.

Holley universal Fuel Pump Relay kit $107

An oil pressure safety switch can also be fitted to cut power to the fuel pump if the engine stops.
Holley Safety Switch $29
Mr. Gasket 7872 $16
The switch is installed where the normal oil pressure switch goes by installing a T-connector.

There are also more sophisticated relays that take a TACH signal and crash sensor to detemine when to cut off the power.

DIY

16-gauge wire for the HOT side (RED or whatever color you want)
16-gauge wire BLACK for the earth/ground side
10A Fuse (or circuit breaker?)
Relay of minimum 10A rating, get a reliable OEM unit like this common Nissan part:

Connect short length of HOT wire to the BAT + or ALT + (your choice)
Fix fuse to this short HOT wire, to protect the rest of the new wiring
Then more HOT to the Relay (D). Keep the wire as short as is feasible
more HOT wire from relay to the fuel pump connector
Fix BLACK from new pump connector to a body ground or engine block
connect small wire (20 gauge is fine) from IGN circuit of the original wiring hanress to relay. Connect it to one of these:
- points ignition: 12V side of the coil resistor
- electronic ign: + side of the coil
- anti-diesel valve on the carburetor
Connect small black wire to ground relay switch (E). Can ground it to:
- body, or
- engine block
To prevent corrosion, seal all the wire connection ends with a sealer

Improved Pump Relay Circuit

Factory Nissan circuit sees 3 relays. Allows pump to run when starting, and automatically cuts off if oil pressure fails.

RELAY-1: pump power relay
RELAY-2: normally closed IGN to Power relay switch
RELAY-3: sensing relay. Oil pressure falls, grounds Relay-2

Because ACC is OFF when key=START, fuel pump is powered during START.

Uses two diodes. The dual-purpose oil pressure switch is for the S110 with Oil Pressure Gauge instead of oil lamp. Datsun 1200 does not need this switch.