3524B Engine for Caterpillar Built Machines Camshaft - Install Caterpillar


Camshaft - Install
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1.1. Installation Procedure

Installation Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
8T-3168  Camshaft Pilot As 
4J-7945 Bolt 
125-0201  Camshaft Guide As 
8T-3169  Crank As 
9S-9082  Engine Turning Tool 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


    Note: The camshaft is in two pieces. Ensure that the camshafts are assembled and installed according to the marks on the ends of the camshafts.



    Illustration 1g00930882

  1. Install Tooling (C) on the flywheel housing. Do not tighten the bolts on Tooling (C).

  2. Install Tooling (B) on the end of the front half of the camshaft.

  3. Ensure that the camshaft and the camshaft bearings are clean. Place clean engine oil on the lobes and the journals of the camshaft. Also place clean engine oil on the camshaft bearings.

  4. Attach a lifting sling and a suitable lifting device to the camshaft. One-half of the camshaft weighs approximately 36 kg (80 lb).

  5. Position the front half of camshaft (12) in the engine until Tooling (B) is in the first camshaft bearing.

  6. Rotate camshaft (12) and tighten the bolts for Tooling (C).

  7. Rotate camshaft (12) and insert the camshaft until the camshaft is slightly protruding from Tooling (C).


    Illustration 2g00914670


    Illustration 3g00930883

  8. If the dowel was removed from the front half of camshaft (12), install the dowel. Install the dowel to 22 ± 0.5 mm (0.9 ± 0.02 inch) from the surface of the camshaft.

  9. Attach a lifting sling and a suitable lifting device to rear half of camshaft (13). One-half of the camshaft weighs approximately 36 kg (80 lb). Install spacer (15) and the rear half of camshaft (13) onto the front half of camshaft (12). Install bolts (14) and tighten to a torque of 55 ± 7 N·m (41 ± 5 lb ft).

  10. Install Tooling (B) and Tooling (D) on the end of camshaft (13).

  11. Rotate camshaft (13) and insert the camshaft into the engine.

  12. Remove all tools. Repeat Steps 1 through 11 for the camshaft on the opposite side of the engine.


    Illustration 4g00914691

  13. Install thrust washers (10) and bolts (9) that fasten the camshaft to the engine.


    NOTICE

    If the camshaft is out of time more than 18 degrees (approximately 1/2 of the timing pin is out of the groove), the valves can make contact with the pistons. This will cause damage to the engine. Refer to Testing and Adjusting, "Camshaft Timing" for more information.




    Illustration 5g00914693

  14. Remove timing pin (16) from the storage position on the side of the engine.

  15. Turn the camshaft until timing pin (16) can be installed through the cylinder block and into groove (17) that is in the camshaft.

  16. Repeat Steps 14 and 15 for the camshaft on the opposite side of the engine.


    Illustration 6g00914707

  17. Remove bolts (19), cover (18), and plug (20).


    Illustration 7g00930884

  18. Install one bolt (19) into the flywheel housing through the hole for plug (20). Use Tooling (E) and a ratchet to turn the flywheel until bolt (19) can be installed through the hole and into the flywheel. This will position the No. 1 cylinder at the top center. Refer to the Service Manual, "Systems Operation/Testing and Adjusting" for more information.


    Illustration 8g00914726

  19. Place camshaft drive gears (8) into position on both of the camshafts.


    Illustration 9g00914728

  20. Install timing ring (11) and the bolt on the camshaft that is on the left side of the engine. Ensure that the hole in the timing ring is properly seated on the locating pin.


    Illustration 10g00914730

  21. Install plate (7) and the bolt on the camshaft that is on the right side of the engine.

  22. Use the following steps to seat camshaft drive gears (8) onto the ends of the camshafts.

    1. Tighten the bolt for timing ring (11) to a torque of 360 ± 40 N·m (266 ± 30 lb ft).

    2. Place an index mark on the bolt for timing ring (11).

    3. Place a driver against the retaining plate of the camsaft drive gear (8) Strike the driver solidly with a hammer 3 to 4 times. This will help seat camshaft drive gear (8) on the camshaft.

    4. Tighten the bolt for timing ring (11) again to a torque of 360 ± 40 N·m (266 ± 30 lb ft).

    5. Repeat Steps 22.c and 22.d until the bolt for timing ring (11) turns a minimum of 90 degrees.

    6. Repeat Steps 22.a through 22.e in order to seat camshaft drive gear (8) on the opposite side of the engine.


    Illustration 11g00914693

  23. Remove the timing pins from the camshafts (17). Install the timing pins in original locations (16).


    Illustration 12g00914380

  24. Install the gaskets and two covers (6) over the camshaft drive gears on both sides of the engine.


    Illustration 13g00930884


    Illustration 14g00914707

  25. Remove bolt (19) from the flywheel. Install plug (20) in the timing hole. Remove Tooling (E) and install cover (18) with bolts (19) on the flywheel housing.


    Illustration 15g00914348

  26. Install two covers (4) on the front housing.


    Illustration 16g00928893

  27. Remove the O-ring seals from valve lifters (5). Push the valve lifters against the camshaft.


    Illustration 17g00914320

  28. Install access covers (2) and tube assemblies (1) on both sides of the engine.

End By:

  1. Install the speed/timing sensor. Refer to the Service Manual, "Electronic Troubleshooting" module.

  2. Install the rocker shaft assemblies and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Push Rods - Install".

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