PC58UU-3 20-106-1
TESTING AND ADJUSTING
Serial No.: 22001 and up
TESTING
Check mounting nut (1) of the fuel injection pump for
looseness.
a The fuel injection timing does not change as long
as the mounting nut is not loosened. Accordingly,
when removing and installing or replacing the
fuel injection pump, refer to the following adjust-
ing procedure.
ADJUSTING
a The injection timing or the MP-type fuel injection
pump used engine cannot be measured like the
former models. Accordingly, adjust the injection
angle instead of measuring the injection timing.
1. Befor romoving fuel injection pump (2), remove
the cover in front of the timing gear case and
make match marks on the meshing parts of
pump drive gear (3) and idle gear (4).
2. Accurately record the relative positions of
stamped line (5) of the fuel injection pump body
and stamped line (6) of the gear case with mark-
off lines (7), etc.
3. Stick injection angle adjustment seal (8) to the
gear case, matching its center line to stamped
line (5) of the fuel injection pump body.
4. Remove the fuel injection pump and read the
"injection angle" recorded on it.
a See REMOVAL AND INSTALLATION of fuel
injection pump.
TESTING AND ADJUSTING FUEL INJECTION TIMING
(6)