TM 9-2815-225-34&P
3-47. TURBOCHARGER REPAIR
THIS TASK COVERS:
a. Disassembly
c. Assembly
b. Cleaning and Inspection
INITIAL SETUP:
APPLICABLE MODELS
PERSONNEL REQUIRED
All
Automotive repairman MOS 63H
SPECIAL TOOLS
REFERENCES (TM)
None
MI-I-6866
TEST EQUIPMENT
TROUBLESHOOTING REFERENCES
None
Para. 2-8
MATERIALS/PARTS
EQUIPMENT CONDITION
Oil, lubricating, OE/HDO 30
Turbocharger removed (para. 3-13).
(Appendix C, Item 21)
Compound, antiseize (Appendix C, Item 7)
SPECIAL ENVIRONMENTAL CONDITIONS
Bearing insert pad (15434) 170510
Work area clean and away from blowing dirt and
Two screws (15434) 194010
dust.
Four washers (15434) 5-631
Two locknuts (15434) 167299
GENERAL SAFETY INSTRUCTIONS
Insulation packing (15434) 202377
Machined edges on wheel and shaft and on tur-
Ring seal (15434) 154644
bocharger impeller are very sharp. Wear protec-
Two turbocharger seals (15434) 3032836
tive gloves.
O-ring (15434) 202456
Always wear eye protection when using com-
Impeller locknut (15434) 3-222A
pressed air.
LOCATION/ITEM
ACTION
REMARKS
a. Disassembly
NOTE
The turbocharger used on the M915A1/Big Cam III has been changed for greater efficiency.
The repair procedures for M915/Big Cam I and M915A1/Big Cam III turbocharger are the
same. Only size and part numbers have changed.
1.
Adapters (15) and (16)
Remove from housing (14).
2.
Housings (6), (14), and
Mark (5), (6), (14), and (21) to help
Make marks at convenient points
(21), and clamp (5)
in alignment during reassembly.
with chalk or felt-tip marking pen
(see illustration).
3.
Two locknuts (7), screws (3),
Remove from V-band clamp (5).
Discard screws (3), washers (4),
and four washers (4)
and locknuts (7).
4.
V-band clamp (5)
Remove from housing (14).
Retain damp (5) for reassembly.
5.
Impeller housing (6)
Lift off housing (14).
Use soft-nose hammer to loosen
impeller housing (6) from bearing
housing (14).
6.
Turbine housing (21) and
Position turbine housing (21) on
Support bearing housing (14) with
bearing housing (14)
workbench with mounting flange
wood shim placed between
of exhaust manifold mating
workbench surface and bearing
surface facing down.
housing (14).
3-276
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