After weeks of delay due to a back ordered head gasket, Iím finally getting this engine
back together. Iíve got the head reassembled and Iíve run into two items that I think are worth discussion before I go further.
The first issue is straight forward. The rocker arms move laterally their shaft about 5mm. Iíve never noticed this before (never had the valve cover off!) but donít see where Iíve made any errors. The rods are properly seated and the valve stem caps are in position. The valve train seems to operate correctly. Is this lateral movement normal?
The second issue is a bit more complicated and is going to involve a fuel
modification. The fuel
bowl assembly on this motor has always been a problem. Because it built of white metal, you cannot torque the banjo bolts sufficiently to properly crush the copper washers without fear of stripping the threads of the assembly. Today, when I went to reassemble the fuel lines, with minimum torque on the banjo bolt, the thread on the fuel return line stripped.
I would love to discard this device. It always leaks
and it leaks
onto the starboard forward motor mount, which does not do the rubber of the mount any good. It has also been the source of air leaks and inconvenient motor failures. This is my plan for replacing it. I would like the input of the members on this this before I proceed.
The fuel bowl has three connections: input from the lift pump
, output to the high pressure pump
and a return from the fuel injector. There is also a vent screw (which is also a source of leaks). I am proposing to cut off the fittings on the lift
pump line and the line to the high pressure pump and connect them together with an inline fuel filter
(I have a bulkhead filter as well). I will then take a small rubber line from the injector fuel return line (this line is metal and measures 3/16 OD) and run it to the fuel tank
. I can connect this line to the fuel tank
by means of a T fitting in the vent line, which runs vertically about 18Ē after exiting the tank.
If I understand how this system works, this change would simplify bleeding the fuel system as I wonít have to ever bleed the return fuel side. I know I could replace the lift pump with an electric pump
, and I may consider that, but for now Iíll use the lift pump Ė it was new last summer. By eliminating the three soft banjo connections and replacing them with hose clamps, I think Iíll be able to stop all the leaking. Does anyone know the ID of the large fuel lines? I will need this dimension to order a fuel filter
and would rather not cut the fuel lines until I've attempted to start the motor (yes, I know it's going to leak).
What do you think?