PowerTech 6105HF - Assemble Rocker Arms and Shaft Assembly; Check Valve Height in Relation to Head Surface (Valve Recess)

Cylinder Head and Valves
02
020
23
RG,RG34710,73 –19–13AUG99–1/1
Assemble Rocker Arms and Shaft Assembly
RG8460 –UN–21MAY98
Rocker Arm and Shaft Assembly
RG8304 –UN–06DEC97
Lifting Rocker Arm Assembly
A—JDG970A Rocker Arm Assembly Lifting Fixture
B—Cap Screw
C—Cap Screw
1. Make sure that rocker arm shaft end plugs are firmly
seated in each shaft end bore.
2. Assemble parts on rocker arm shaft in reverse
sequence as removed.
3. Install cap screws (B) and (C) in holes at each end of
rocker arm shaft to keep rocker arms from sliding off
shaft during installation.
4. Install JDG970A Rocker Arm Lifting Fixture (A) onto
rocker arm and shaft assembly.
RG,RG34710,74 –19–03NOV99–1/1
Check Valve Height in Relation to Head
Surface (Valve Recess)
RG8330A –UN–09DEC97
Measure Valve Recess
A—Height Gauge
B—Dial Indicator
1. Thoroughly clean all gasket material from cylinder head
combustion face.
2. Measure and record valve recess using JDG451
(English) or KJD10123 (Metric) Height Gauge (A) along
with D17526CI (English, in.) or D17527CI Dial Indicator
(Metric) (B). Measurements must be made a maximum
of 3.0 mm (0.12 in.) in from edge of valve head.
Specification
Intake and Exhaust Valves—
Recess 1.85—2.35 mm (0.073—0.093 in.).................................................
Install new valves, inserts, or grind existing valves and
inserts (as necessary) to obtain specified valve recess.
CTM100 (06APR04) 02-020-23 P OWER T ECH 10.5 L & 12.5 L Diesel Engines
040604
PN=95