Hummer H1 (1992-1998). Manual — part 23
2-27. OIL PUMP REPAIR (Cont’d)
2-81
2-28. OIL FILTER ADAPTER AND OIL PRESSURE SENDING UNIT REPAIR
This task covers:
a. Cleaning
b. Inspection
INITIAL SETUP
Tools
Equipment Condition
General mechanic’s tool kit
Engine disassembled into subassemblies
automotive (Appendix E, Item 1)
Manual References
Clean all components in accordance with para. 2-9.
NOTE
For general inspection instructions, refer to para. 2-10.
1. Inspect adapter bolt (2) for damaged threads. Replace if threads are damaged.
2. Inspect adapter reducer (3) for damaged threads. Replace if threads are damaged.
3. Inspect adapter (1) for damage. Replace adapter (1) if damaged and remove adapter reducer (3)
for reuse.
4. Inspect fitting (5) for damage. Replace if damaged.
5. Inspect oil pressure sending unit (4) for damage. Replace if damaged.
2-82
Change 1
2-83
2 - 2 9 . EXHAUST MANIFOLD REPA I R
This task covers:
a.
Cleaning
b.
Inspection
Equipment Condition
Engine disassembled into subassemblies
(para. 2-15).
a. Cleaning
b. Inspection
NOT E
For general inspection instructions, refer to para. 2-10.
Inspect exhaust manifold (1) for damage. Replace if damaged.
Clean exhaust manifolds (1) in accordance with para. 2-9.
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix E, Item 1)
Manual References
NOT E
There is no repair to exhaust manifold and it must be replaced
if damaged.
LEFT TURBO EXHAUST MANIFOLD SHOWN
LEFT EXHAUST MANIFOLD SHOWN
2-84 Change 1
2 - 3 0 . I N TAKE MANIFOLD REPA I R
This task covers:
a.
Cleaning
b.
Inspection
Manual References
Equipment Condition
Engine disassembled into subassemblies
(para. 2-15).
a. Cleaning
b. Inspection
NOT E
• For general inspection instructions, refer to para. 2-10.
• For turbocharged engines, perform step 1 only.
1.
Inspect intake manifold (1) or intake manifolds (4) and center intake manifold (3) for damage.
Replace if damaged.
2.
Inspect nipple (2) for damage. If damaged, replace nipple (2) using sealing compound.
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix E, Item 1)
Materials/Parts
Sealing compound (Appendix B, Item 18)
TURBO ENGINE
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