Lesson 3/Learning Event 1
Reinstall the assembly by:
Installing a new rocker arm cover gasket.
Installing the relief valve into the cover.
Installing the rocker arm cover.
Installing a new self-sealing washer on the mounting screw and installing the screw.
Spark Plug and Cable
In the military standard engine ignition system, current is generated by a rotating magnet and an
ignition coil. A low-tension cable carries current to the contact set and the capacitor, located
under the accessory case cover of the governor. A high-tension ignition cable passes the current
from the ignition coil to the spark plug. The ignition cable must be inspected for stripped threads,
damaged insulation, or electrical shorts. The spark plug must be inspected for insecure
installation, carbon buildup, stripped threads, or evidence of cross-threading.
The location of the spark plug and cable are shown in figure 19.
FIGURE 19. SPARK PLUG AND CABLE.