Remove the dial gauge from the valve overlap. The
valve overlap is the period between the opening of the
inlet valve and closing of the exhaust valve. Set the
valve lash for the inlet valve of the number 1 cylinder.
Refer to Specification, "Cylinder Head Valves" for the
correct valve lash. Install the rocker cover.
Timing Of The Fuel Injection Pump
Type 1 and 9RM Engines With Stanadyne
Fuel Injection Pump
NOTE: For a complete description of Type I and Type 2
engines, refer to the Systems Operation, Testing
and Adjusting Module, "Engine Design" for more
Timing Fixture Group
Nozzle Test Group
The fuel injection pump must be timed if any of the following
The performance of the fuel injection pump is not
The locking bolt is loosened after the fuel injection pump
has been removed from the engine.
Remove the fuel injection pump.
(1) 9U-6189 Drive Adapter
Install the 9U-6189 Drive Adapter (1) to the drive shaft
of the fuel pump. Fasten the drive adapter with the nut
of the fuel pump gear.
(2) Number 1 outlet
Install the 5P-4150 Nozzle Testing Group to the number
1 outlet (2). Operate the hand pump until a pressure of
5065 kPa (735 psi) is indicated on the gauge.
Engine timing tool from the 9U-6188 Timing Fixture Group
Turn the shaft of the fuel pump in a clockwise direction
from the drive end of the pump until the pin in the shaft
aligns with number 1 outlet. Position the sleeve (3) for
the engine timing tool on the fuel injection pump. Install
the engine timing tool on the adapter. The adapter is on
the fuel pump drive shaft.
Turn the shaft of the fuel pump until the fuel pressure
prevents movement of the shaft. The fuel must flow
through the delivery valve in the fuel pump before the
fuel pressure will prevent movement of the shaft. In this
position, the fuel pump is set at the start of fuel injection
from the number 1 outlet.