6. Fuel Injection equipment
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6.2.3 Disassembly and reassembly of
fuel feed pump
(1) Disassembly
1) Remove the fuel feed pump mounting nut,
and take the fuel feed pump off the fuel
injection pump.
2) Clean the fuel feed pump assembly with fuel
oil.
3) After checking the orientation of the arrow on
the cover, make match marks on the upper
body and cover, remove the small screw, and
disassemble the cover, upper body and lower
body.
(2) Reassembly
1) Clean all parts with fuel oil, inspect, and
replace any defective parts.
2) Replace any packing on parts that have been
disassembled.
3) Make sure that the intake valve and
discharge valve on upper body are mounted
in the proper direction , and that you don’t
forget the valve packing.
4) Assemble the diaphragm into the body,
making sure the diaphragm mounting holes
are lined up (do not force).
5) Align the match marks on the upper body of
the pump and cover, and tighten the small
screws evenly.
Nm(kgf•m)
Tightening torque 1.47-2.45 (0.15-0.25)
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