3408E and 3412E Engines for Caterpillar Built Machines Caterpillar

Camshaft - Remove and Install

Usage:

769C 01X

Show/hide table

Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	1P-0510	Driver Group	1

Start By:

Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove".
Remove the lifter group. Refer to Disassembly and Assembly, "Lifter Group - Remove and Install".
Remove the flywheel housing. Refer to Disassembly and Assembly, " Flywheel Housing - Remove and Install".

Show/hide table

NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Show/hide table

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.

Show/hide table

Remove four bolts (1) and plate (2) from the rear of the camshaft. Remove gear (3) from the camshaft.
Show/hide table

Illustration 2 g00572090
Rotate the engine until the “V” marks on the front of the timing gears are in alignment.
Show/hide table

Illustration 3 g00572095
Remove two bolts (5) and plate (4) from the camshaft.
Show/hide table

Illustration 4 g00572105
Remove camshaft (6) from the cylinder block.
Show/hide table

Illustration 5 g00572214
If necessary, remove camshaft gear (7) with Tool (A) and press.

Show/hide table

NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Show/hide table

Note: The key for gear (7) must be in position on the camshaft (6) before gear (7) is installed.

Do not use a torch to heat camshaft gear (7). Raise the temperature of camshaft gear (7) by one of the following methods.
- Use a suitable oven to raise the temperature of camshaft gear (7). Do not exceed 150° C (302° F) for more than four hours.
- Use a suitable induction heater to raise the temperature of the hub of camshaft gear (7). Do not exceed 150° C (302° F) at bottom of gear teeth root radius.
Install camshaft gear (7) to camshaft (6).
Put 8T-2998 Lubricant on the camshaft lobes and the rollers for the valve lifter. Put clean engine oil on the bearing journals of the camshaft.
Show/hide table

Illustration 7 g00572105
Install camshaft (6) until the rear of the camshaft is even with the rear of the cylinder block.
Show/hide table

Illustration 8 g00572090
Make an alignment of the “V” marks on the camshaft gear and the idler gear.
Show/hide table

Illustration 9 g00572221
Install plate (4) on the cylinder block.
Show/hide table

Illustration 10 g00572086
Install gear (3) and plate (2) on the rear of the camshaft.

End By:

Install the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing - Remove and Install".
Install the lifter group. Refer to Disassembly and Assembly, "Lifter Group - Remove and Install".
Install the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Install".