Fuel Feed Line Upgrade

    WARNING!!! Have a fire extinguisher nearby at all times during the installation!!!

    You may want to upgrade the fuel feed line on your Supra.  Whether you just want to clean up the engine bay, make filter changes easier, or just plain need more fuel for a high powered turbo setup there is a kit avaliable for you.  Longtime Supra tuner Donnie Spears assembles these kits with high quality AN fittings and braided high pressure hose.  A replaceable Russel fuel filter is included and you have your pick of many high quality aftermarket brands for replacements down the road becuase of the standard AN fittings the kit uses.

    Begin the installation process by removing the gas cap, the tank may be under pressure and cause lots of fuel to leak.  If you have driven the car recently you will also want to crank over the engine a few times with the EFI fuse pulled to get rid of as much excess fuel in the lines as possible. 

    Once this is done remove the fuel pulsation dampner located at the rear of the fuel rail next to the firewall.  It is a mushroom shaped object and may have a plastic cap on it as shown in the picture below.  The size is 22mm.  Be careful when you are removing it not to loose the copper washers.

    Once you have this removed gently lift the banjo fitting out of its groove on the fuel rail.  You can leave the copper waher there if you like. 

    Next thread in the fuel rail adaptor in the kit using one copper washer underneath to seal it.  If you have a new copper washer use it otherwise you should be able to reuse your old ones, but there is more of a possibility of a leak this way.

    The next step is to jack the car up and support it with jack stands so you can safely work underneath the car.  Slide underneath and locate the small metal shield bolted to the frame rail below the steering shaft.  It is held on with one 10mm bolt.  Remove this sheild and unclip it from the factory fuel line.

    Now you will see the point where the line transitions from the hard metal line to the rubber line.

    Using a 14mm and a 17mm flare nut wrench unscrew the lines at this point.  It is mandatory that you use flare nut wrenches at this point to avoid damage as the lines are very tight and have sealer applied to the threads which makes the effort to unscrew them even higher.  Once you have them detatched slide off the rubber bushing from the line you just removed, you will need to transfer it to the same piece on the new line.  Some fuel will spill during this step so be careful that there are no open flames or sparks nearby and keep a fire extinguisher at arms reach just in case.

    Thread the lines back together until snug with the flare nut wrenches.

    Now clamp the line back into the bracket where the rubber bushing is and bolt the bracket/shield back to the frame rai l with the 10mm bolt.  Don't forget the ground strap that was also there if you removed one.  The last part is just to connect everything together from the kit with the fuel filter resting above the brake booster.  Snug all the lines gently.  You will probably want to unbolt the factory filter from the side of the engine block now and snake out the hard line that ran fron the fuel filter up to the fuel rail that we disconnected in the first step.  Replace the EFI fuse if you took it out and start the car for a second or two and go over everything and look for any leaks.  If you were as lucky as me you will have no leaks and you can put the car on the ground and go for a spin.

    If you wish to purchase this kit contack Donnie Spears at cheappower82@yahoo.com

Any questions or comments should be adressed to wjh@ufl.edu