TM 9-2910-226-34 A B C D E F G H J K L M N S U V W X Sliding gear Timing device spring Timing device hub Timing pointer Timing cover Tappet roller pin Tappet guide Spring lower seat Plunger lock Plunger inner spring Spring upper seat Plunger guide Drive gear retainer Plunger drive gear Gear thrust washer Plunger sleeve Hydraulic head Plunger bore screw Fuel plunger Fuel delivery valve Delivery valve screw Plunger button Y Z AA BB CC DD EE FF CC HH JJ KK LL MM NN PP QQ SS TT UU Stop plate Smoke limit cam Governor cover Governor end cap Governor inner spring Governor outer spring Governor housing Governor weight Sliding sleeve Friction drive spider Camshaft bushing-type bearing Tappet roller Camshaft Camshaft ball bearing Injection pump housing Timing device housing End play spacer Sliding gear spacer Spider thrust plate Weight and spider assembly Outer plunger spring P Q R T RR Figure 1-14. Metering and (distributing fuel injection pump assembly (code G), left sectional view. 1-7. Fuel Shutoff Rod Assembly or Solenoid Assembly. The fuel shutoff rod assembly (D, fig. 1- 13) or timing window cover solenoid shutoff assembly (E, fig. 1-13) is attached at the hydraulic head timing window. When the fuel shutoff rod is pulled to the rear, or the solenoid is actuated, it engages the fuel control unit (B, fig. 1-13) or the fuel control unit (B, fig. 1-13), and shuts off the fuel. 1-8. Hydraulic Head Assembly. NOTE The key letters shown below in parentheses refer to figures 1-14, 1-15, 1-16, and 1-17. a. The hydraulic head assembly consists of the hydraulic head (S), fuel plunger (U), plunger sleeve (R), plunger drive gear (P), fuel delivery valve (V), plunger inner spring (K), and other related parts. b. The hydraulic head has a centrally ground and lapped bore into which the fuel plunger fits. It is counterbored and threaded at the upper end for the plunger bore screw (T). Six discharge passages extend symmetrically from the plunger bore and meet six vertical outlet passages. The fuel delivery valve is located in the head and held by a spring and the delivery valve screw (W). A passage from the 1-16