Trooper II L4-2559cc 2.6L SOHC (4ZE1) (1989)
Oil Pump: Service and Repair
Note: Isuzu Manuals for this year model do not provide a detailed service operation for this component seperately; but rather group this
service operation into an engine overhaul procedure. Where applicable, figures have been added to show some detail for this procedure.
Removal
1. Oil pump and pulley
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Use a 6 mm inner hex wrench to remove oil pump along with pulley and rotor.