Torsional Damper And Front Crankshaft Seal Replacement - GMC G Service Manual

6A6-14 6.2L DIESEL
2. Speed sensor wire, if equipped.
3. Oil pump drive.
4. Gasket.
H Install or Connect (Figure 12)
1. New gasket to the oil pump drive.
2. Oil pump drive to the engine. Index the drive with the
camshaft gear and oil pump drive shaft. Make sure
the drive seats fully.
3. Speed sensor wire, if equipped.
4. Clamp and bolt.
| & | Tighten
• Bolt to 42-N*mr(31 ft. lbs.).
A. Forward
60. Engine Speed Sensor
61. Clamp
62. Bolt
63. Gasket
Figure 12 — Oil Pump Drive
TORSIONAL DAMPER AND
FRONT CRANKSHAFT SEAL
REPLACEMENT
H Remove or Disconnect (Figure 13)
Tool Required:
J 23523-E Torsional Damper Puller
1. Battery cables.
2. Fan upper shroud (G-models).
3. Accessory drive belts.
• Raise the vehicle (G-models). Support with suitable
safety stands.
4. Bolts and crankshaft pulley.
5. Torsional damper bolt and washer.
6. Torsional damper. Use J 23523 (figure 13).
7. Front crankshaft seal. Pry out with a screwdriver.
H Install or Connect (Figure 14)
Tool Required:
J 22102 Seal Installer
1. New front crankshaft seal. Use J 22102 (figure 14).
Lubricate the seal lips with engine oil.
• Apply engine oil to the crankshaft stub.
2. Torsional damper. Tap into place with a mallet. Make
sure the key is in place. Make sure the damper is all
the way on the crankshaft.
3. Torsional damper bolt and washer.
L00479
E51 Tighten
• Bolt to 270 N*m (200 ft. lbs.).
4. Crankshaft pulley and bolts.
Figure 14 — Installing the Front Crankshaft Seal
L00398
J 22102