Fuel Shutoff Solenoid
(1) Governor. (2) Fuel shutoff solenoid.
With engine stopped and the engine's electrical system
shut off, remove fuel shutoff solenoid (2) to allow free
movement of the injector rack control linkage during
injector synchronization. The 9U5120 Spanner Wrench
can be used to remove the fuel shutoff solenoid. Refer
to the Disassembly And Assembly Section of this
Service Manual for procedures and tooling.
Remove No. 1 Cylinder Rocker Arm Assembly
(3) Inlet manifold. (4) Bolt. (5) Rocker arm assembly.
Remove the valve cover from inlet manifold (3).
Remove four bolts (4) and No. 1 cylinder rocker arm
Hold rocker arm assembly (5) level when
removing from engine to prevent accidental
Install Injector Spring Compressor On No. 1 Injector
(6) 1U6675 Injector Spring Compressor.
Apply a small amount of clean engine oil to the top of
Compressor (6) to the cylinder head and injector as
shown. Tighten the bolt [part of the tool (6)] which is
threaded into the cylinder head hole for the rocker arm
assembly. This will compress the injector.
Tap lightly with a soft hammer on the spring
compressor directly above the injector to ensure
free movement of the injector rack bar.
The injector spring must be slightly compressed to allow
free movement of the injector rack. Either the rocker arm
assembly or the 1U6675 Injector Spring Compressor
MUST be installed on all injectors to allow free movement
of injector racks.