Operation Manual

Table Of Contents
Job Card No.:
Engine:
Filing No.:
Rocker Arm
Removal / Refitment
0178-11-10 1066
Job:
Observe safety precautions. Open indicator valves.
Turn camshaft so in tappet roller of the lower valve
drive rests on the cam base circle and the rocker arm
is unloaded. Unscrew bolts (5) to remove cover (1).
Removing:
Exhaust Rocker with Fulcrum
Unscrew bolts (2) with washers (14) and raise rocker
(3) with fulcrum (4). Withdraw fulcrum from rocker.
Removing:
Inlet Rocker with Bracket
Unscrew bolts (11) and remove rocker (7) with brak-
ket (6). Drive fulcrum out of bracket by brass arbor.
The diameter of the fulcrum bearings differ at
both ends. The notched end ist thicker
Cleaning:
Clean all components. Blow through all oil passa-
ges in rockers and pressure screws abd check all
passages are free.
Before reassembly, apply oil to fulcrum and bea-
ring bushes. Clean bracket seat on cylinder head.
Be sure no dowel bushes are damaged or lost.
Refitting:
Inlet Rocker with bracket
Hold Rocker (7) in bracket (6) and drive fulcrum (8)
into bracket by arbor. Note correct location of
notch (9).
Place bracket (6) with rocker (7) on cylinder head,
threading in dowel bushes (12). Screw in bolts (11)
with washers (10)
Refitting:
Exhaust Rocker with Bracket
Slip rocker (3) over fulcrum (4) and place on bracket
(6), threading in dowel bushes (13). Screw in bolts (2)
with washers (14).
Tightening Waisted Bolts
Tighten bolts (2) as under Section 3.5, item 8 and
bolts (11) as under item 7. Be sure to preload the
bolts through the torques specified.
© 0185
01.02.02
S/BVM 628
Job Cards:
- 01.01.01
- 02.00.01
Tools:
- Standard tools
- Brass arbor
© 50 542 1