Start By:
- Remove the flywheel housing.
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 8T-5096 | Dial Indicator Gp | 1 |
| NOTICE |
|---|
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
| NOTICE |
|---|
|
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
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| Illustration 1 | g01619992 |
- Remove bolts (1) from the assembly of crankshaft rear seal (2).
- Remove bolts (3) from the assembly of the crankshaft rear seal.
- Remove the assembly of crankshaft rear seal (2) from the cylinder block. Discard the assembly of crankshaft rear seal (2).
Note: It is not necessary to remove the adapter for the engine oil pan to remove the crankshaft rear seal.
Note: The assembly of the crankshaft rear seal is nonserviceable. If the assembly of the crankshaft rear seal is removed, the assembly must be replaced.
Installation Procedure With Oil Pan in Position
Note: The crankshaft rear seal and the housing are manufactured as one assembly.
Note: Do not lubricate the crankshaft rear seal or the crankshaft flange. The crankshaft rear seal must be installed dry.
- Ensure that crankshaft flange (1) is clean, dry, and free from damage.
- Ensure that the gasket surface of the cylinder block is clean and dry. Ensure that the gasket surface of isolating frame (7) is clean and dry.
- Ensure that plastic sleeve (3) is squarely installed within new crankshaft rear seal (2).
Note: The plastic sleeve is included to protect the lip of the seal as the crankshaft rear seal is pushed over crankshaft flange (1). Do not attempt to install a crankshaft rear seal without the plastic sleeve.
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Illustration 3 g01337513 Typical example - Place the assembly of the crankshaft rear seal over crankshaft flange (1). Align dowel (5) with the slot in crankshaft rear seal (2).
- Ensure that plastic sleeve (3) is engaged on crankshaft flange (1). Push crankshaft rear seal (2) squarely onto the crankshaft. Ensure that the crankshaft rear seal is seated against the cylinder block. During this process, plastic sleeve (3) will be forced out of the crankshaft rear seal. Discard the plastic sleeve.
Note: Ensure that dowel (5) is engaged in the slot in the crankshaft rear seal.
- Install two outer bolts (6) at the base of crankshaft rear seal (2). Tighten bolts (6) to a torque of
15 N·m (11 lb ft) . - Install two bolts (4) to crankshaft rear seal (2) at Position (X). Tighten bolts (4) to a torque of
22 N·m (16 lb ft) . - Loosen bolts (6) by one complete turn.
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Illustration 4 g01784513 Tightening sequence - Install remaining bolts (4). Tighten bolts (4) to a torque of
22 N·m (16 lb ft) in the sequence that is shown in Illustration 4. - Install remaining bolts (6). Tighten all the bolts to a torque of
22 N·m (16 lb ft) in the sequence that is shown in Illustration 4. - Use Tooling (A) to check the concentricity between the crankshaft flange and the outside diameter of the crankshaft rear seal. Refer to Specifications, "Crankshaft Seals" for further information.
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| Illustration 2 | g01620015 |
End By:
- Install the flywheel housing.
Installation Procedure Without Isolating Frame for the Oil Pan
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | - | Alignment Tool | 1 |
| - | Bolts (M8 by 20 mm) | 4 | |
| B | 8T-5096 | Dial Indicator Gp | 1 |
Note: The crankshaft rear seal and the housing are manufactured as one assembly.
Note: Do not lubricate the crankshaft rear seal or the crankshaft flange. The crankshaft rear seal must be installed dry.
| NOTICE |
|---|
|
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
- To install the crankshaft rear seal without the isolating frame for the oil pan in position, Tooling (B) must be used. The tool should be fabricated from
8 mm (5/16 inch) steel stock. The dimensions for the tool are given in Illustration 5. All dimensions are shown in millimeters.Show/hide table
Illustration 6 g01784820 - Ensure that crankshaft flange (1) is clean, dry, and free from damage.
- Ensure that the gasket surface of the cylinder block is clean and dry.
- Ensure that plastic sleeve (3) is squarely installed within new crankshaft rear seal (2).
Note: The plastic sleeve is included to protect the lip of the seal as the crankshaft rear seal is pushed over crankshaft flange (1). Do not attempt to install a crankshaft rear seal without the plastic sleeve.
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Illustration 7 g01337517 Typical example - Place the assembly of the crankshaft rear seal over crankshaft flange (1). Align dowel (5) with the slot in the crankshaft rear seal.
- Ensure that plastic sleeve (3) is engaged on crankshaft flange (1). Push crankshaft rear seal (2) squarely onto the crankshaft. Ensure that the crankshaft rear seal is seated against the cylinder block. During this process, plastic sleeve (3) will be forced out of the crankshaft rear seal. Discard the plastic sleeve.
Note: Ensure that dowel (5) is engaged in the hole in the crankshaft rear seal.
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Illustration 8 g01784499 Tightening sequence Show/hide table
Illustration 9 g01786558 Tightening sequence - Install Tooling (A) to the cylinder block and to crankshaft rear seal (2). Tighten the bolts to a torque of
15 N·m (11 lb ft) . - Install bolts (4) to crankshaft rear seal (2). Tighten the Torx bolts to a torque of
22 N·m (16 lb ft) in the sequence that is shown in Illustration 8. - Install the remaining bolts. Tighten the remaining bolts to a torque of
22 N·m (195 lb in) in the sequence that is shown in Illustration 9. - Remove Tooling (A).
- Use Tooling (B) to check the concentricity between the crankshaft flange and the outside diameter of the crankshaft rear seal. Refer to Specifications, "Crankshaft Seals" for further information.
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| Illustration 5 | g01279001 |
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Alignment tool | |
End By:
- Install the engine oil pan plate.