Up

Fuel System


3/8/06 - More of the chassis fabrication that needs to be done revolves around the fuel cell.  So I went ahead and selected the one that best fit the needs of the car.  The cell that was chosen was a JAZ 8-gallon model that was special ordered.  Normally it lays flat, but it can be "custom" built by JAZ with the filler and pickups on the side vs. the top.  They also installed a return fitting as well.  I got great service from them and they had the tank to me in less than a week.  They ended up giving me the bail cap style instead of the aircraft style cap that I specified, but when I called, they promptly sent me the right cap.

The mounts are 3/4" square tubing welded to the frame for a base.  1 x 1/8" aluminum straps were made to hold it in place.

DSCN2084.JPG (305456 bytes)  DSCN2085.JPG (281116 bytes)  DSCN2086.JPG (302565 bytes)  DSCN2087.JPG (294993 bytes)


7/29/06 - The hard lines have been run for the supply and return.  I decided to run hard lines through the chassis to keep things tidy and secure through the middle of the frame.

DSCN2228.JPG (298637 bytes) 


9/6/06 - Fuel Pump and Fittings

The fuel pump is now installed.  It is a Walbro in-line unit that should have more than enough umph to fuel the R1.  Fittings were available to adapt to the -6 AN fitting on the supply line to the motor and the -8 AN fitting coming from the fuel tank.  The location of the pump should be fairly easy to get to from under the car if a repair is needed.

DSCN2260.JPG (308232 bytes)  DSCN2261.JPG (280725 bytes)

When ordering the fuel pump, I got a bit lucky and discovered a fitting that I was going to need on the engine side of the fuel supply.  I wanted to be able to use the factory fuel hose on the supply (high pressure) side of the engine.  It still had the quick disconnect on it.  I was not sure what kind of fitting it was, but figured it could turn it on the lathe.  There was one similar looking on the fuel pump website for $2...I figured it would be a gamble worth taking.  The type of fitting is a Bundy style fitting, and I guess that I did not realize that they are common in a lot of automobile applications.  It is just the type of connector that is different between the different makes.

DSCN2265.JPG (307615 bytes)  DSCN2268.JPG (358072 bytes)


10/15/06 - Fuel Return Line

First bit of fuel plumbing after getting the engine back in involved the low pressure fuel return line.  Not too difficult, but it did require a fitting to be made on the lathe.  The line coming from the fuel rail was 1/4" ID tubing and my hard return line was 3/8".  I made a simple step down adapter to fit between the 1/4" and the 3/8" fuel lines.

DSCN2321.JPG (266666 bytes)  DSCN2324.JPG (234761 bytes)


11/8/06 - Finished Fuel Plumbing

The rest of the parts and pieces have arrived and now the fuel system plumbing is complete.  In the rear, the main pickup was moved from the top to the bottom of the tank on the passenger side.  The pickup tube is right in the midde of the tank.  This should assure that the in-line fuel pump is never starved for fuel.  There is also an in-line filter to keep any trash from the fuel tank getting to the pump.

DSCN2332.JPG (292567 bytes)  DSCN2331.JPG (282553 bytes)

Up front, all the little bits and pieces come together to make for a fairly simple and easy to maintain system.  The fuel filter is a Ford unit with a modified (for lightness of course) bracket.  It has Bundy fittings on each end.  The engine had that style fitting going to the fuel rail and I was able to find a fitting for the supply side that would adapt to standard hose.  Hindsight is always perfect...If I would have researched a little harder, I could have made the system a little cleaner from the outlet of the fuel pump to the fuel filter, instead of having a few adapter fittings in between.  I have already spent the money, and it will work...just live and learn.

DSCN2333.JPG (258871 bytes)  DSCN2334.JPG (306785 bytes)