| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | Qty |
| A(1) | 177-8001 | Sleeve | 1 |
| B | 177-8002 | Adapter | 1 |
| C | 6L-4697 | Bolts | 3 |
| D | 8T-2998 | Lubricant | - |
| F | - | Loctite 242 Threadlocker Medium Strength, Blue | - |
| (1) | Part of 177-8003 Engine Tool Group |
Start By:
- Remove the camshaft gear.
- Remove the rocker arms and the rocker shafts.
Note: This is an optional procedure to remove the camshaft. The preceding tool list shows the required tooling for removing the camshaft from the front of the engine or the rear of the engine.
| NOTICE |
|---|
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
| NOTICE |
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Do not turn the crankshaft or the camshaft while the camshaft gear is removed. If the front gear group is not correctly timed during installation, interference can occur between the pistons and the valves, resulting in damage to the engine. |
- Remove bolts (2) and thrust plate (1).
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Illustration 2 g01071487 - Remove sealing plate (3) from the front housing. Remove adapter assembly (4) from the crankshaft.
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Illustration 3 g01056684 - Remove O-ring seals (5) and (6) from sealing plate (3).
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Illustration 4 g01056675 - Remove flat head screws (9) and cover (10). Remove the O-ring seal from the cover.
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NOTICE Care must be used when removing or installing the camshaft. Do not damage the finished surfaces of the camshaft or the camshaft bearings.
- To remove the camshaft from the rear of the engine, go to Step 6 through Step 9. To remove the camshaft from the front of the engine, go to Step 10 through Step 13.
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Illustration 5 g01056714 Removal of the camshaft from the rear of the engine - To remove the camshaft from the rear of the engine, install Tooling (B) on the front of camshaft (8) with Tooling (C).
Note: Carefully align Tooling (B) with the end of camshaft (8). If the adapter and the camshaft are not aligned, the camshaft may not be removed. The adapter and camshaft bearing will interfere.
- Install Tooling (A) on Tooling (B).
- Carefully slide the camshaft to the rear of the engine for removal. Use two technicians to remove the camshaft. Keep the camshaft level while the camshaft is being removed from the cylinder head. The weight of the camshaft is approximately
39 kg (86 lb) .Note: Rotate the camshaft during removal. This will prevent the camshaft from binding in the camshaft bearings.
- Remove Tooling (A), Tooling (B), and Tooling (C) from the camshaft.
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Illustration 6 g01056717 Remove the camshaft from the front of the engine. - To remove the camshaft from the front of the engine, install Tooling (B) on the rear of camshaft (8) with Tooling (C).
Note: Carefully align Tooling (B) with the end of camshaft (8). If the adapter and the camshaft are not aligned, the camshaft may not be removed. The adapter and camshaft bearing will interfere.
- Install Tooling (A) on Tooling (B).
- Carefully slide the camshaft to the front of the engine for removal. Use two technicians to remove the camshaft. Keep the camshaft level while the camshaft is being removed from the cylinder head. The weight of the camshaft is approximately
39 kg (86 lb) . - Remove Tooling (A), Tooling (B), and Tooling (C) from the camshaft.
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| Illustration 1 | g01056681 |
Alternative Installation Procedure
Note: This is an optional procedure to install the camshaft. The preceding tool list shows the required tooling for installing the camshaft from the front of the engine or the rear of the engine.
| NOTICE |
|---|
|
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
| NOTICE |
|---|
|
Do not turn the crankshaft or the camshaft while the camshaft gear is removed. If the front gear group is not correctly timed during installation, interference can occur between the pistons and the valves, resulting in damage to the engine. |
| NOTICE |
|---|
|
Care must be used when removing or installing the camshaft. Do not damage the finished surfaces of the camshaft or the camshaft bearings. |
- Ensure that the camshaft and camshaft bearings are thoroughly clean. Lubricate the camshaft lobes with a 50/50 mixture of Tooling (D) and clean engine oil. Apply a thin coat of clean engine oil on the camshaft bearings.
- To install the camshaft from the rear of the engine, go to Step 3 through Step 6. To install the camshaft from the front of the engine, go to Step 7 through Step 10.
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Illustration 7 g01056714 Install the camshaft from the rear of the engine. - To install the camshaft from the rear of the engine, install Tooling (B) on the front of camshaft (8) with Tooling (C).
Note: Carefully align Tooling (B) with the end of camshaft (8). If the adapter and the camshaft are not aligned, the camshaft may not be removed. The adapter and camshaft bearing will interfere.
- Install Tooling (A) on Tooling (B).
- Use two technicians to install the camshaft. Carefully slide the camshaft into the cylinder head from the rear of the engine. Keep the camshaft level while the camshaft is being installed in the cylinder head. The weight of the camshaft is approximately
39 kg (86 lb) .Note: Rotate the camshaft during installation. This will prevent the camshaft from binding in the camshaft bearings.
- Remove Tooling (A), Tooling (B), and Tooling (C) from the camshaft.
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Illustration 8 g01056717 Install the camshaft from the front of the engine. - To install the camshaft from the front of the engine, install Tooling (B) on the rear of camshaft (8) with Tooling (C).
Note: Carefully align Tooling (B) with the end of camshaft (8). If the adapter and the camshaft are not aligned, the camshaft may not be removed. The adapter and camshaft bearing will interfere.
- Install Tooling (A) on Tooling (B).
- Use two technicians to install the camshaft. Carefully slide the camshaft into the cylinder head from the front of the engine. Keep the camshaft level while the camshaft is being installed in the cylinder head. The weight of the camshaft is approximately
39 kg (86 lb) .Note: Rotate the camshaft during installation. This will prevent the camshaft from binding in the camshaft bearings.
- Remove Tooling (A), Tooling (B), and Tooling (C) from the camshaft.
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Illustration 9 g01056675 - Install the O-ring seal on cover (10). Position the cover on the rear of the cylinder head. Install flat head screws (9) and tighten to a torque of
13 ± 3 N·m (10 ± 2 lb ft) .Show/hide table
Illustration 10 g01056684 - Install O-ring seal (5) and O-ring seal (6) in sealing plate (3). Lubricate O-ring seal (6) with a 50/50 mixture of Tooling (D) and clean engine oil.
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Illustration 11 g01056682 Show/hide table
Illustration 12 g01056681 - Install sealing plate (3) in front housing (7). Install adapter assembly (4) in the sealing plate. Ensure that the dowel in adapter assembly (4) engages the hole in the camshaft.
- Install thrust plate (1). Apply Tooling (F) to bolts (2). Hold the assembly in position and install bolts (2). Evenly tighten bolts (2) until sealing plate (3) and the O-ring seal are seated against the cylinder head.
Note: Ensure that the O-ring seal stays in the groove in sealing plate (3).
End By:
- Install the rocker arms and the rocker shafts.
- Install the camshaft gear.