4.24 Oil Pump Drive
Fragment manuala — str. 261–262
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OIL PUMP DRIVE 4.24
PREPARE 3. Install chain (8) and align marked chain link (1) with
crankshaft key (2).
1. Remove main fuse. See POWER DISCONNECT
(Page 8-4). 4. Install chain (8) on oil pump sprocket (7).
2. Install crankshaft lockout tool. See CRANKSHAFT 5. See Figure 4-65. Install upper chain guide (3) and screw
LOCKOUT (Page 4-18). (2). Tighten.
Torque: 58-75 in-lbs (6.5-8.5 N·m) Upper chain guide,
3. Remove coolant manifold. See COOLANT MANIFOLD oil pump, screw
(Page 4-51).
6. Install balancer sprocket (7) and screw (6). Do not tighten
screw.
4. Remove alternator. See ALTERNATOR (Page 8-8).
7. See Figure 4-67. Rotate balancer sprocket (4) and align
REMOVE diamond hole (5) with marked chain link (6).
1. See Figure 4-65. Remove screw (4). 8. See Figure 4-65. Install chain tensioner.
2. Remove chain tensioner. a. Reset chain tensioner (8) to lowest setting or tension.
a. Remove screws (2). b. Install chain tensioner (8).
b. Remove chain tensioner (8). c. Install screws (2). Tighten.
Torque: 58-75 in-lbs (6.5-8.5 N·m) Chain tensioner,
3. Remove balancer sprocket. oil pump, screws
a. See Figure 4-66. Install balance sprocket locking 9. Install balancer sprocket locking tool.
tool.
a. See Figure 4-66. Install balancer sprocket locking
b. See Figure 4-65. Remove screw (6). tool.
Special Tool: BALANCER SPROCKET LOCKING
c. Remove balance sprocket (7)
TOOL (HD-52964)
4. Remove oil pump sprocket (5). b. See Figure 4-65. Tighten screw (6).
Torque: 310-327 in-lbs (35-37 N·m) Balancer
5. Remove upper chain guide. sprocket screw
10. T ighten screw (4).
a. Remove screw (2).
Torque: 80-97 in-lbs (9-11 N·m) Oil pump sprocket screw
b. Remove upper chain guide (3).
INSTALL
PART NUMBER TOOLNAME
HD-52964 BALANCER SPROCKET LOCKING
TOOL
FASTENER TORQUE VALUE
Balancer sprocket screw 310-327 in-lbs 35-37 N·m
Chain tensioner, oil pump, 58-75 in-lbs 6.5-8.5 N·m
screws
Oil pump sprocket screw 80-97 in-lbs 9-11 N·m
Upper chain guide, oil pump, 58-75 in-lbs 6.5-8.5 N·m
screw
1. See Figure 4-65. Install oil pump sprocket (5) and screw
(4). Do not tighten screw.
2. See Figure 4-67. Position chain (8) as shown with marked
chain links (1, 6) facing up.
94000784 4-57
1. Chain 1. Marked chain link
2. Short screw (3) 2. Crankshaft key
3. Upper chain guide 3. Crankshaft
4. Long flange screw 4. Balancer sprocket
5. Oil pump sprocket 5. Diamond hole
6. Flange screw 6. Marked chain link
7. Balancer sprocket 7. Oil pump sprocket
8. Chain tensioner 8. Chain
Figure 4-65. Oil Pump and Balancer Drive Figure 4-67. Chain Alignment
1581260 COMPLETE
1. Install alternator. See ALTERNATOR (Page 8-8).
2. Install coolant manifold. See COOLANT MANIFOLD
(Page 4-51).
3. Remove crankshaft lockout tool. See CRANKSHAFT
LOCKOUT (Page 4-18).
4. Install main fuse. See POWER DISCONNECT
(Page 8-4).
Figure 4-66. Balance Sprocket Locking Tool