When barring over or "bumping" the starter, personnel should keep their hands
and clothing away from moving parts of the engine as there is a possibility the
engine could start and injury to personnel could occur.
Do not bar the crankshaft in a left hand direction of rotation with a wrench or
barring tool on the crankshaft bolt. The bolt could be loosened and the pulley, belt
or vibration damper could fly off, resulting in serious injury to personnel.
This procedure is typical for all rocker arms on both starboard and port engines.
Turn crankshaft, or crank engine with starting motor, to bring injector and valve rocker arms in line
Remove two bolts (Figure 1, Item 1) which secure rocker arm shaft brackets (Figure 1, Item 10) to cylinder
head (Figure 1, Item 6).
Remove two brackets (Figure 1, Item 10) from cylinder head (Figure 1, Item 6).
Do not force rocker arms all the way back with rocker arm shaft in place as this could
impose a load on pushrods and bend them. Failure to comply may result in damage to
Move three rocker arms (Figure 1, Item 4) up and toward center of engine.
Remove rocker arm shaft (Figure 1, Item 2).
Loosen locknuts (Figure 1, Item 8) at upper end of pushrods (Figure 1, Item 7).
If rocker arms and shafts from two or more cylinders are to be removed, tag them so they
can be installed in their original positions.
Unscrew pushrods (Figure 1, Item 7) from rocker arms (Figure 1, Item 4).