FUEL SYSTEM - Injection Pump FU-55
(g) Determine the plunger adjusting shim size by using
the following formula and chart.
New adjusting shim thickness = T + (B - 3.3)
T ... Thickness of used shim
B ... Measured plunger position
Plunger adjusting shim selection chart
EXAMPLE: The 2.4 mm (0.094 in.) shim is installed
and measured clearance is 3.7 mm (0.146 in.). Replace
the 2.4 mm (0.094 in.) shim with a 2.8 mm (0.110 in.)
shim.
(h) Install a new plunger adjusting shim and recheck
dimension B.
Dimension B: 3.2-3.4 mm (0.126-0.134 in.)
(i) Remove the distributive head.
(j) Using SST, remove the following parts:
(1) Pump plunger
(2) Plunger adjusting shim
(3) Face camplate
SST 09260-5401 2 (09269-54030)
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