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The fuel pump is best wired up with a relay -- you don't want the high current to go through your ignition switch. | The fuel pump is best wired up with a relay -- you don't want the high current to go through your ignition switch. | ||
- | [http://www.oreillyauto.com/site/c/detail/HOL0/12753.oap?keyword=fuel+pump&pt=N0515&ppt=C0128 Holley universal Fuel Pump Relay kit $107] | + | [http://www.oreillyauto.com/site/c/detail/HOL0/12753.oap?keyword=fuel+pump&pt=N0515&ppt=C0128 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. | An oil pressure safety switch can also be fitted to cut power to the fuel pump if the engine stops. | ||
- | <br>*[http://www.oreillyauto.com/site/c/detail/HOL0/12810.oap?keyword=fuel+pump&pt=N0515&ppt=C0128 Holley Safety Switch $29] | + | * [http://www.oreillyauto.com/site/c/detail/HOL0/12810.oap?keyword=fuel+pump&pt=N0515&ppt=C0128 Holley Safety Switch $29] |
- | <br>* [http://www.amazon.com/Mr-Gasket-7872-Safety-Switch/dp/B00068OQ3S Mr. Gasket 7872 $16] | + | * [http://www.amazon.com/Mr-Gasket-7872-Safety-Switch/dp/B00068OQ3S Mr. Gasket 7872 $16] |
- | <br>* male 1/8 BSPT to female 1/8 NPT adapter | + | * male 1/8 BSPT to female 1/8 NPT adapter [http://google.com/search?q=male+1%2F8+BSPT+to+female+1%2F8+NPT+adapter $6 eBay] |
- | <br>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. | There are also more sophisticated relays that take a TACH signal and crash sensor to detemine when to cut off the power. | ||
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{{Album|22115}} | {{Album|22115}} | ||
- | * 16-gauge wire for the HOT side (RED or whatever color you want) | + | * 16-gauge wire for the HOT side (RED or whatever color you want) [http://google.com/search?q=16-gauge+automotive+wire $5 lowes.com] |
- | * 16-gauge wire BLACK for the earth/ground side | + | * 16-gauge wire BLACK for the earth/ground side [http://google.com/search?q=16-gauge+automotive+wire $5 lowes.com] |
- | * 10A Fuse (or circuit breaker?) | + | * 10A Fuse/30A for EFI [http://google.com/search?q=30a+atc+fuse+holder $3 lowes.com] |
*: {{PhotoTh|LPX-04B-I.jpg|wiki}} | *: {{PhotoTh|LPX-04B-I.jpg|wiki}} | ||
* Relay of minimum 10A rating, get a reliable OEM unit like this common Nissan part: | * Relay of minimum 10A rating, get a reliable OEM unit like this common Nissan part: | ||
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an94541's safety wiring (doesn't include a priming circuit) | an94541's safety wiring (doesn't include a priming circuit) | ||
- | <br>{{AlbumPost|395594|3755}} | + | <br>[http://datsun1200.com/modules/newbb/viewtopic.php?post_id=395594#forumpost395594 http://datsun1200.com/uploads/photos/3755.jpg] |
=== Inertia Safety Switch === | === Inertia Safety Switch === |
Revision as of 07:55, 27 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.
Contents |
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
- 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
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.
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 -- you don't want the high current to go through your ignition switch.
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 * male 1/8 BSPT to female 1/8 NPT adapter $6 eBay
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) $5 lowes.com
- 16-gauge wire BLACK for the earth/ground side $5 lowes.com
- 10A Fuse/30A for EFI $3 lowes.com
- 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.
25070-P8000 SWITCH ASSY-OIL PRESSURE
Evilsim's fuel pump safety switch:
an94541's safety wiring (doesn't include a priming circuit)
Inertia Safety Switch
An inertia switch can also be fitted to cut power in a crash.
STANDARD MOTOR PRODUCTS/Intermotor FV7 Universal $70
Junk yard can net one cheap:
1990 circa Ford ($50.87 New). Mount with button up.
Mount on a steel panel, like the kick panel or firewall. After a bump, pushing on the reset button causes the linkage to reset itself.