Edelbrock 1718 Automobile Parts User Manual
Contents
1. PLEASE study these instructions carefully before installing your new In Tank Fuel Pump for 1985 1992 GM Cars and Trucks If you have any questions or problems do not hesitate to contact our Technical Hotline at 1 800 416 8628 from 7am 5pm PST Mon Fri or via e mail at Edelobrock Edelbrock com Please fill out and mail your warranty card 255 Liter Hr In Tank Fuel Pump For 1985 1992 GM Cars and Trucks Catalog 17933 INSTALLATION INSTRUCTIONS Note Proper installation is the responsibility of the customer Improper or incomplete installation could result in poor performance related component damage potential severe engine damage vehicle fire and will void your warranty If you do not feel comfortable installing these parts we recommend having the installation performed by a professional mechanic Description This in tank fuel pump replaces the factory pump and has an increased flow of 255 liters hour 67 gph This in tank upgrade pump is ideal for supporting performance improvements such as a big bore throttle body high performance intake manifold camshaft supercharger direct port nitrous system etc They replace your original pump exactly and include all necessary hardware for an easy installation Kit Contents Minimum Tools Required Qy Description 1 Lift or appropriate jack a1 Fuel Pump 2 OSHA approved jackstands Ol Fuel Pump Filter 3 OSHA approved fuel transfer pump Ol Fuel Pump Adapter Grommet 4 OSHA approved fuel2. sparingly lubricate the fuel pump outlet tube on the bracket and the pump outlet fitting Install the rubber spacer and pulsator onto the fuel pump The spacer and pulsator are to be fully seated against the pump when properly installed Invert the bracket assembly and install the pump and pulsator assembly onto the fuel outlet tube on the bracket Catalog 17933 Brochure 63 0223 Guide the pump adapter grommet into the pump Support on the bracket Firmly seat the pump and adapter grommet into the pump support Then verify that the pulsator and spacer are still fully Seated against the pump 7 Install the supplied electrical connector to the pump and to the factory fuel pump wiring harness plug 8 Install the new fuel filter on the pump in the same position or orientation as the original filter To avoid damage to the filter place it on a clean flat surface and push the pump straight down into the filter cup until it is fully seated on the pump See Fig 5 Note Take care to properly align the filter the first time If it has to be removed the filter will be contaminated or destroyed by removing it and a replacement filter will be needed Fuel Pump Adapter Pump Inlet Bracket Filter Cup Filter Flat Surface Fig 5 BRACKET INSTALLATION 1 Inspect the fuel tank for dirt and debris If the amount of dirt or debris is excessive clean the fuel tank before installing the bracket assembly 2 Inspect the bra
3. o ring seal PUMP REMOVAL AND REPLACEMENT 1 Note the position of the fuel pickup filter in relation to the bracket before removing the filter Remove the filter by pulling on it while rotating it in one direction Discard the filter Note the polarity of the electrical connections at the pump and remove the electrical connections Write down which wires are connected to the positive and negative terminals and the respective color of each wire s insulation Note Your original pump will be mounted in one of two ways See Fig 2 and 3 If itis mounted as shown in Fig 2 then follow step 3a for removal If it is mounted as shown in Fig 3 follow step 3b for removal Return Tube Fuel Tube Fuel Level 4 Sender 4 Pulsator Hose Fuel Level Sender Float A Bottom Filter Of Tank Fig 2 Fig 3 3a Remove the hose clamps if so equipped cut the rubber hose and remove the pump from the bracket Remove the cut hose piece from the bracket tube and discard it along with the used hose clamps 3b Remove the pump by inverting the bracket Pull down on the fuel pump until the inlet end clears the pump support and swing it to the side Remove the pump and pulsator from the bracket fuel outlet tube Save the pulsator and the pulsator to fuel pump rubber spacer for use in mounting the new fuel pump 2003 Edelbrock Corporation Rev 11 03 4 Page 3 of 4 Inspect the bracket to ensure that th
4. and has the fuel filter in it The second is the return line from the injectors The last is the vapor line which leads to the vapor canister Trace the return line back from the injectors and remove it from the bracket Securely attach a hose to the exposed fuel return tube which leads into the tank and draw the remaining fuel out and into an approved gasoline storage container Note Regardless of the method used to remove fuel from the tank it is important to remove as much fuel as possible before removing the tank This is required to help prevent fuel spillage and injury from excessive weight while removing the tank 2003 Edelbrock Corporation Rev 11 03 Fuel Pressure Regulator TI Fuel Tank D Injectors ad Fuel Filter Vapor Canister Fuel Return Line FUEL TANK REMOVAL Caution The fuel tank can be quite awkward to remove due to its size and weight Obtain help during its removal Note The following instructions may not be specific to your particular vehicle See your factory service manual for specific instructions 1 w Disconnect the electrical connector at the fuel tank to main harness connector Support and partially lower the tank if needed Disconnect any hoses attached between the fuel tank and the vehicle Be careful to avoid fuel spillage when disconnecting the fuel lines Mark the hoses to make sure they are properly reconnected when the tank is reinstall
5. cket to make sure it is clean and ready for installation 3 Place the supplied fuel tank o ring seal in the groove at the fuel tank opening Place the bracket assembly into the tank using care not to disturb the o ring seal or to hang the float assembly on any protrusions in the tank Also use care not to fold or twist the filter as this could cause restricted fuel flow Install the locking ring and rotate it clockwise until it is properly seated against the stops Check service manual for an approved sealant for locking ring FUEL TANK INSTALLATION 1 Inspect the condition and location of all tank mounting pads insulators and brackets Defective missing or mislocated pads and insulators will cause the transmission of excessive noise into the vehicle Inspect and correct any defects in the fuel hoses filler neck connections or similar components related to the fuel system Install the fuel tank in the vehicle and tighten the tanks Support strap bolts Reconnect all lines and hoses and tighten securely Connect the electrical connections Make certain that all hoses fittings and electrical connections are correctly and securely attached Be sure that all fuel lines are correctly routed and secured in any mounting brackets Make sure the wiring harness is installed in the original position and secured in any wire clips or brackets if present WRAP UP Using only equipment approved for use with gasoline refill the fuel tank
6. e pump support has not been bent during pump removal The flat surface of the support should be perpendicular square to the tube itis welded to See Fig 4 If itis out of square carefully bend it back to square to allow the pump to fit properly Take care not to damage the support or the tube Fuel Pump Support Install the supplied pump rubber adapter grommet onto the inlet side of the pump Test fit the pump on the bracket and rotate the adapter grommet on the pump as required to obtain the best pump outlet fitting to bracket outlet tube alignment Note Your original pump will be mounted in one of two ways See Fig 2 and 3 If itis mounted as shown in Fig 2 then follow step 6a for installation If it is mounted as shown in Fig 3 follow step 6b for installation 6a Using petroleum jelly sparingly lubricate the fuel pump outlet tube on the bracket and the pump outlet fitting With the supplied rubber hose and clamps slip the hose and one clamp over the the fuel outlet fitting on the pump Invert the sending unit and place the remaining clamp over the fuel outlet tube Install the rubber hose and pump onto the fuel outlet tube on the bracket Guide the pump adapter grommet into the pump support on the bracket When the pump and adapter grommet assembly are firmly seated in the pump support verify that the rubber hose is seated against the fuel pump and then position and tighten the hose clamps 6b Using petroleum jelly
7. ed Remove the fuel filler neck if necessary Support the fuel tank and remove the retaining straps to allow the tank to be removed from the vehicle Remove the fuel tank being careful not to spill any remaining fuel Note the condition and position of all fuel tank mounting pads and insulators used to isolate the fuel tank from the vehicle body Mislocated deteriorated or incorrect pads and or insulators can cause objectionable transmission of fuel pump noise into the vehicle BRACKET REMOVAL 1 Page 2 of 4 Thoroughly clean all dirt and debris from the top of the tank Clean out any dirt from around the locking ring and retainer This must be done to prevent dirt of foreign material from falling into the fuel tank while removing the bracket Lubricate the locking ring with penetrating oil to assist in its removal Remove the locking ring by rotating in a counterclockwise direction This can best be Catalog 17933 Brochure 63 0223 accomplished safely by using the proper service tool as specified in the factory service manual Using the proper tool is ideal However the locking ring can be removed by other methods Whichever method you use do not use any method that could potentially cause Sparks resulting in fire or explosion Once the locking ring is removed carefully remove the bracket from the fuel tank Be careful not to bend the float arm or scratch the float when it is removed Discard the old fuel tank to bracket
8. pump will not work on carbureted fuel systems It is for electronic fuel injection only Note The word bracket used throughout these instructions refers to the fuel pump mounting bracket and fuel level sender assembly PREPARATION 1 Make sure the engine is cool and the vehicle is on level ground Set the parking brake 2 Remove the fuel pump fuse from the fuse block 3 Start the engine and let it run until it consumes any fuel in the fuel lines and runs out of fuel 4 After the engine stops crank it again for at least three seconds to assure the relief of any remaining pressure 5 Remove the negative ground cable from the battery and position it so that it cannot make a connection to the battery during the fuel pump installation procedure 6 Drain the fuel tank Use an OSHA approved gasoline transfer pump and remove as much fuel as possible through the fuel tank filler neck Store the fuel in approved safety containers only 7 Lift and safely support the vehicle with approved Safety stands with enough height to gain clearance to remove the fuel tank If lifting only the rear of the vehicle remember to block the front wheels 8 Once the vehicle is lifted and supported an alternate method of fuel removal may be implemented Determine which line is the fuel return line going back to the fuel tank See Fig 1 Three lines are attached to the bracket The first is the feed line which leads to the fuel injectors
9. storage containers Ol Fuel Tank to Pump Bracket O Ring 5 Wire stripping and crimping tool Ol Electrical Connector 6 Various hand tools Ol 6 Section of Fuel Hose a2 Hose Clamps Not used in some vehicle applications INSTALLATION NOTES Remember When working on your vehicle especially when oil or fuel is present always work in a well ventilated area Keep all sparks open flames or other sources of ignition away from the work area Failure to do so could result in a fire or explosion causing vehicle or property damage personal injury and or death Before Beginning This installation can be accomplished using common tools and procedures However you should have a basic knowledge of automotive repair and modification and be familiar with and comfortable with working on your vehicle If you do not feel comfortable working on your vehicle it is recommended to have the installation completed by a professional mechanic Using a factory service manual for your vehicle for reference is helpful Note Steps shown in these instructions are intended as a general guideline only If you are not an experienced mechanic you should have a copy of your service manual on hand The installation procedure for replacing your factory fuel pump is covered in full detail in your factory service manual 2003 Edelbrock Corporation Catalog 17933 Rev 11 03 Page 1 of 4 Brochure 63 0223 INSTALLATION PROCEDURE Note This rotary fuel injection
10. with gasoline Note Always clean any gasoline spills immediately Inspect the fuel system for leaks Repair any leaks before proceeding With the ignition switch off install the fuel pump fuse and reconnect the negative ground cable to the battery Turn the ignition key to the Run position only This will charge the fuel system You may need to do this a few times to get pressure Once you have pressure check for any leaks and repair Then start engine and re check for leaks Note Turn off engine and correct any leaks before continuing Clear any trouble codes in the electronic control unit ECU that may exist as a result of the fuel pump replacement procedure Use the factory service manual for assistance if necessary TROUBLESHOOTING Should the fuel pump fail to operate 1 2 Check the fuel pump fuse and fuel pump relay as outlined in the factory service manual If the pump has power and proper polarity check the remainder of the fuel system as outlined in the service manual Note This pump will not remedy any malfunctions in the fuel pressure regulator fuel injectors or other fuel system problems Edelbrock Corporation 2700 California St Torrance CA 90503 Technical Toll Free Hotline 800 416 8628 Office 310 781 2222 E Mail 2003 Edelbrock Corporation Rev 11 03 Page 4 of 4 Edelbrock Edelbrock com Catalog 17933 Brochure 63 0223
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