FIGURE 3-19. Rotating Accessory Drive

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FIGURE 3-18. Rocker Housing Torque Sequence

TM-55-1905-223-24-5 Bowthruster Engine for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

Table 2-4. Injector and Valve Adjustment Sequence

TM 55-1905-223-24-5

NOTE

After any repair where the injector setting is disturbed, all of the valves and

injectors must be set. Once the adjustment procedure has been completed,

continue through the crankshaft rotation and check (adjust if necessary) the

injector adjustment on cylinders No. 2, No. 3, and No. 6. This takes care of

any camshaft and rocker lever shaft deflection which may have occurred

during the initial adjustment.

All overhead (crosshead, valve, and injector) adjustments must be made when

the engine is cold (any stabilized coolant temperature at 140 (60 ) or

below).

(1) With the rocker lever covers removed and rocker housing capscrews tightened to 60 ft-lb. torque,

alternately tighten the injector holddown clamp capscrews to 156 in-lb. torque. Refer to paragraph

(2) General adjustment information:

(a) The valve set marks are located on the accessory drive pulley. The marks align with a

pointer on the gear cover.

(b) Use the accessory drive shaft to rotate the crankshaft. See FIGURE 3-19 .

FIGURE 3-19. Rotating Accessory Drive.

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