MG > 1973 > MGB > 1.8L L4 > Electrical-Switch & Relay > Fuel Pump Cutoff Switch. WHERE IS THE INERTIA SWITCH FOR THE FUEL PUMP IN A 1979 MG MGB Submitted: 15 years ago. I doubt that is the only reason though as that should mean things like fuel pump, overdrive and ignition would have been protected. Damage to the V8 rear harness inside the boot. You can take both the output wires into a new 4-way bullet connector and insert a fuse between the two 4-ways, but if one circuit blows the fuse it will stop the other working. £62.97 . Top Rated Seller Top Rated Seller. Notes: Use if earlier tank fitted (for use on 1977-80 rubber bumper cars fitted with an earlier type of fuel tank with a threaded fuel pick-up in the body of the tank not the fuel tank sender unit. Another battle with the Prince of Darkness, the fuse box and lights / horn switching is one of the common failure points on the MG electrical system. Click & Collect. how do I troubleshoot a fuel problem for a 79 mgb? MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from ⦠AZX1331 and AZX1332 pumps have their inlet/outlet connections at approximately 45 degrees to each other. However the fuel pump is still on the relay - not ideal if it sticks on! I seem to but be getting power to the pump but if I disconnect the line out of the pump no fuel comes out when I try to start. That is, both the wires coming off the back AND front of the block. Often, it's not the pump itself that fails to function, but the power that supplies it. Show More. Once that wire has been found cut that wire so that you now have half of that wiring running to the fuel pump, and the ⦠Ok....thanks to all of you. Electrical Repair Manual. Customs services and international tracking provided. Where the white wires connect to the A3 terminal of the original fuse box, you could disconnect the wires for the fuel pump and ignition coil and reconnect them to two more fuses in the new fuse block, then having used 5 or 6 fuses at that location. (Image by David Farrar on the MGOC Forum). or Best Offer . Damage runs all the way back through the rear harness and into the main harness, through that back to the ignition switch, and from there on the brown down to the solenoid. Probable cause is failure or poor contact of the âGreen/Whiteâ fuse. ), but again only the 'output' wire from the fuse is fused, the 'input' wire isn't. Price: Alternate: No parts for vehicles in selected markets. Fuel System Repair Manual. Free postage. Also it doesn't explain why North American spec cars only had one ignition relay wiring arrangement where the relay powered everything except the fuel pump, overdrive and ignition warning light. MGB FUEL PUMP BANJO HOSE AND BOLT PAIR INLET / OUTLET. The bullet connector near the RHD pedal cover where the two white wires from the main harness join the white wire to the rear harness and the pump. Fuel Pump Guide A rough guide to the types of pump fitted to the MGB. This pipe has a nut & olive at one end and is plain for a push on hose at the other). Rimmer Bros has a variety of Fuel Pump Relay products available. Have a specialty? Apply to be an Expert . £8.20 postage. Hammer Time, L1 Master ⦠This thread was discussed between 25/04/2009 and 27/04/2009. At the wiring you need to find the 12v supply wire from the ECU to the fuel pump. STANDARD MOTOR ⦠From United States +C $66.20 shipping. My fuel pump does not work on 1977 MGB. On your 04 TF the fuel pump relay is next to the starter relay, both are housed in the left hand side of the boot between the liner and n/s quarter panel, of the 2 relays the fuel pump relay is the one to the front of the car. Welcome to our resource for MG Car Information. 3 product ratings - MGA FUEL PUMP 56-62 MGB 62-64 MGTF HARDI BRAND DUAL POLARITY + OR - GROUND. FUEL PUMP ELECTRIC SUCTION HUCO 133010 ENGINE BAY FITMENT (Fits: MG MGB GT) 5 out of 5 stars (7) 7 product ratings - FUEL PUMP ELECTRIC SUCTION HUCO 133010 ENGINE BAY FITMENT. Ask Your Own Car Question. So, since the fuel pump is powered off the white circuit it is switched (by the ignition switch) but not fused. I had to put the V8 overdrive fuse in the engine compartment as that was the first place I could use existing connectors as it has the manual switch on the column stalk with a multi-way plug connecting to the main harness. On the roadster with the manual switch on the dash I have put the fuse on the back of the switch using spade connectors instead of bullets. Any way to test for this? I replaced the fuel pump but not getting fuel out of the tank to the carb-I have 4-5 gal of fuel in the tank 1 Answer. Auto Mechanic: Hammer Time, L1 Master Technician replied 15 years ago. or Best Offer. MGB Headlight relay kit 62-80 Item #: RELAY KIT1 Add a headlight relay to your MGB. Related Parts. The roadster is still using the original wire so presumably wasn't damaged too badly, the V8 has had a new wire run in (brown, the blue is a wire I added for the rear fog lights). North American spec cars are wired differently as they have an inertia switch in the pump circuit, and the OD wiring is different, see the main text. Thanks Bill Chandler W Chandler: Not fused from the factory, but adding one is a good idea. All Gauges, Indicators and Brake Lights fail. Quantity Quantity. It is also reversible - should anyone want to! Having a single fuse in the headlight supply *would* be a safety issue, which is why I recommend fitting individual filament fuses when installing headlight relays. Oct.77) Zenith ⦠MG MGB Technical MGB GT Fuel Pump not working BBS discussion at MG-Cars.net. The car runs nicely and there doesn't seem to be a problem with fuel delivery. The later AZX1318 and AZX1307 units have inlet/outlet connections that are side-by-side (parallel) with âBanjoâ style connections. I recommend replacing the fuse box outright if it looks old and corroded. Only 2 left. C $25.03. I finally found this little Mr. Gasket Micro Electric Fuel Pump and for $40 and figured if I killed it at least it didnât cost much, itâs also specifically labelled as negative ground only. The electrically operated gauges (fuel, rev counter, water temperature and on 1968 â 72 MGBs the oil pressure) have been known to fail on occasion. Hi im new to this site so hello everyone, iv got a strange problem with my ZR 1.8 120 at the moment, the fuel pump fuse keeps blowing when i accelerate hard from stationary. This MGB is also still positive ground! 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