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My 1990 mitusbshi montero is only used to plow my driveway. The gas tank and gas lines rusted out. I want to run an external fuel pump to a gas can, what would u reccomend."
Anything to make it work ,say the original pump with a fexable pipe with the pump stuck on the end or better still a inline pump mounted under the bonnet and can off fuel in the back
There are a couple things here. In the first place if you can pump fuel with the pump off the engine and pumped by hand doesn't mean that it will pump on the engine. See the stroke on the engine is very short, it only moves like 1/4 inch. So you could have a bad pump even though you are pumping by hand. The gas cap, will have no effect on this model. Yes the pick-up tube has a filter on the bottom of it, and it could be stopped up. You can remove this unit up through the top of the tank, got to wiggle it and turn it sideways, and if you can find a used one( New ones scarce and expensive) by going to used parts place, and look for 1967 - 1972, they are all alike. Lots a luck in fixing this great ole truck.
Yes!! lots of patience, lines are not that easy especially routing them, check the sending unit for rusty lines and the tank also, nothing worse than reinstalling everything back only to find you have another leak
Electric Fuel Pump REMOVAL & INSTALLATION
The electric fuel pump used on fuel injected Nova and Prizm cars is contained within the fuel tank. On 1988–92 models it cannot be removed without removing the tank from the car.
NOTE: Before removing fuel system parts, clean them with a spray-type engine cleaner. Follow the instructions on the cleaner. Do not soak fuel system parts in liquid cleaning solvent. CAUTION The fuel injection system is under pressure. Refer to the procedure above and release pressure slowly and contain spillage. Observe no smoking/no open flame precautions. Have a Class B-C (dry powder) fire extinguisher within arm's reach at all times.
1988–92
Release the fuel system pressure as outlined earlier.
Using a siphon or pump, drain the fuel from the tank and store it in a proper metal container with a tight cap.
Remove the rear seat cushion to gain access to the electrical wiring.
Disconnect the fuel pump and sending unit wiring at the connector.
Raise the vehicle and safely support it on jackstands.
Loosen the clamp and remove the filler neck and overflow pipe from the tank.
Remove the supply hose from the tank. Wrap a rag around the fitting to collect escaping fuel. Disconnect the breather hose from the tank, again using a rag to control spillage.
Cover or plug the end of each disconnected line to keep dirt out and fuel in.
Support the fuel tank with a floor jack or transmission jack. Use a broad piece of wood to distribute the load. Be careful not to deform the bottom of the tank.
Remove the fuel tank support strap bolts.
Swing the straps away from the tank and lower the jack. Balance the tank with your other hand or have a helper assist you. The tank is bulky and may have some fuel left in it. If its balance changes suddenly, the tank may fall.
Remove the fuel filler pipe extension, the breather pipe assembly and the sending unit assembly. Keep these items in a clean, protected area away from the car.
To remove the electric fuel pump:
Disconnect the 2 pump-to-harness wires.
Loosen the pump outlet hose clamp at the bracket pipe.
Remove the pump from the bracket and the outlet hose from the bracket pipe.
Separate the outlet hose and the filter from the pump.
While the tank is out and disassembled, inspect it for any signs of rust, leakage or metal damage. If any problem is found, replace the tank. Clean the inside of the tank with water and a light detergent and rinse the tank thoroughly several times.
Inspect all of the lines, hoses and fittings for any sign of corrosion, wear or damage to the surfaces. Check the pump outlet hose and the filter for restrictions.
To install:
When reassembling, ALWAYS replace the sealing gaskets with new ones. Also replace any rubber parts showing any sign of deterioration.
Assemble the outlet hose and filter onto the pump; then attach the pump to the bracket.
Connect the outlet hose clamp to the bracket pipe and connect the pump wiring to the harness wire.
Install the fuel pump and bracket assembly onto the tank.
Install the sending unit assembly.
Connect the breather pipe assembly and the filler pipe extension.
NOTE: Tighten the breather pipe screw to 17 inch lbs. and all other attaching screws to 30 inch lbs.
Place the fuel tank on the jack and elevate it into place within the car. Attach the straps and install the strap bolts, tightening them to 29 ft. lbs.
Connect the breather hose to the tank pipe, the return hose to the tank pipe and the supply hose to its tank pipe. tighten the supply hose fitting to 21 ft. lbs.
Connect the filler neck and overflow pipe to the tank. Make sure the clamps are properly seated and secure.
Lower the vehicle to the ground.
Connect the pump and sending unit electrical connectors to the harness.
Install the rear seat cushion.
Using a funnel, pour the fuel that was drained from its container into the fuel filler.
Install the fuel filler cap.
Start the engine and check carefully for any sign of leakage around the tank and lines.
Fig. 1: Fuel tank components — 1988 VIN Code 5 engine (Nova)
Fig. 2: Fuel tank components — 1989–92
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you have 2 options
1--- put the fuel return line into the tank you are using
2--- install a balance line between tank 1 and tank 2 so that the fuel back to tank1 is allowed to balance back into tank 2
properly set up the tanks should be connected so that the fuel gauge reads the total fuel in the tanks and there is a need for only one fuel pump
Most larger lawn mowers run plastic fuel tanks so look around for a tank that will fit in your tanks space. Have you checked for an after market plastic tank for your machine as the rust problem may have been corrected by the maker of the fuel tanks. Use plastic lines ( suitable for use with fuel-- silicon lines are good but expensive)
Autozone and EBAY (and many others) sell 12volt Electrical Fuel Pumps and you can do exactly what you are talking about BUT.....
THIS IS NOT LEGAL and NOT SAFE
Make sure you use a Toggle Switch to power up the Fuel Pump or the Power Source is from a KEY ON component. Running Line to the system is not difficult but where are you going to have the EVAP system return the un-used fuel?
You are not making the best decision but be careful in whatever you do.
My father did this same conversion to his old Jeep, a long time ago. lol He created a mount that he could use to secure the gas can to the rear, exterior. He ran a fuel line from the gas can and ran it underneath, along the frame. He bought a 17PSI, in-line, fuel pump and connected it between the new fuel line and the old existing one (going to the engine). If your vehicle has a "Fuel Return Line" that will need to be spliced into the new fuel-line. This type of repair isn't considered to be safe or legal and would not be pass a state inspection. As a mechanic I would recommend fixing it the right way. If your set on installing a gas can. Please think it through. Location, materials used, how hoses are run and secured, is very important. An exposed gas can can create a hazard, if struck or crushed. I hope that helps, good luck.
for shore i am a mechanic i know whats wrong you need to drop your gas tank i know its not your pump ok but there is a big leak insided you tank very simple to fix you need a 6 inch piece of fuel line and two clamp take out the fuel pump and replace the piece of fuel line thats on yur fuel pump assembly ok im glad i could help
Is it getting gas?? Is the fuel pump working?? A 1990 could have rust in the fuel tank plugging up lines, filter or the pump. Or the fuel pump is not getting power. Just a few thoughts.
The fuel pump and sending unit is located in the tank. I hope your tank is empty, if not you will need to siphon it out. It is dangerous with the gasoline, and remember the fumes burn, not gas. You start by removing the filler hose, then loosen straps, detach sending unit wire and fuel line, then lower tank. Then unscrew the sending unit/pump and replace. reinstall.
First try the fuel regulator make sure it isn't leaking and dumping fuel through the vacuum line. it is on the fuel rail near the rear of the engine. Also make sure the ground cable from the battery to the engine block is nice and tight this will cause a flooding condition
Thank you for allowing me to assist you with your problem.
My experience with this particular issue leads me to believe that you probably have a rusted fuel line or lines at the top of the fuel tank, assuming that the fuel lines are OK under the vehicle. This is a very common problem. There is a bracket there that holds the fuel pump inside the tank, and the fuel lines that are welded to the top of this device are wont to develop pin-holes over time and age. Very noticable when driving, most likely the line going to the engine is the culprit. Get under the vehicle and see if there is wetness at the top of the tank. If so, you will need to drop the fuel tank and replace the fuel pump bracket. I hope that this helps you solve your problem.
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