Lubrication System
02
060
11
RG,RG34710,214 –19–25OCT00–3/3
RG8258B –UN–06DEC97
Oil Pump Removed
A—Oil Pump Assembly
B—Oil Pump-to-Cylinder Block Gasket
5. Remove oil pump-to-cylinder block gasket (B). Discard
gasket.
RG,RG34710,215 –19–13AUG99–1/1
Clean and Inspect Oil Pump and Drive Gear
IMPORTANT: DO NOT disassemble oil pump for
repair or inspection. No repair parts
are available. Replace pump as a
complete assembly as necessary.
1. Completely flush oil pump with solvent while
rotating input shaft by hand to clean any debris
from housing and gears.
2. Using a good light source, look through rear
cavities of pump to inspect all gear teeth for
abnormal wear. Replace pump if excess wear is
noticed.
3. Inspect back side of oil pump cover through cavities
for evidence of gear contact with cover. Replace
pump if gear contact is noticed.
4. Inspect oil pump drive gear teeth for wear. Inspect
and measure drive gear bushing ID. Bushing ID
must be within specifications. Replace drive gear
and bushing assembly as necessary.
Specification
Oil Pump Drive Gear Bushing—
ID 135.70—135.80 mm
(5.343—5.346 in.)
........................................................................
CTM100 (06APR04)
02-060-11
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=279
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