B - Ardiehl.de

ROCKER ARM AND SHAFT
Disassembly and Assembly
Mark the rocker arms and support brackets for correct
assembly.
Remove the snap ring (Item 1) [A] from each end of the
shaft (Item 5) [A].
Remove the rocker arms (Items 2 & 4) and support
brackets (Item 3) [A].
Assembly: The support bracket with the oil hole is toward
the front of the engine.
Inspect all the parts for wear or damage.
Check the rocker arm O.D. [B].
Standard – 0.7478–0.7486 inch (18,98–19 mm)
Limit – 0.7427 inch (18,85 mm)
Checking Rocker Arm and Push Rods
Check the rocker arm [C].
Rocker arm diameter.
Standard – 0.7489–0.7497 inch (19,01–19,03 mm)
Limit – 0.7505 inch (19,05 mm)
Clearance between rocker arm and shaft.
Standard – 0.0003–0.002 inch (0,01–0,05 mm)
Limit – 0.0078 inch (0,2 mm)
Replace the parts as needed.
Check the push rods for run–out [D].
Limit – 0.012 inch (0,3 mm)
–7–54–
A
B
C
D
1
2
3
4
5
B–08191
B–08214
B–08215
B–08213
853, 853H BICS Loader
Service Manual