BEARING-SLEEVE 7C0805 - Caterpillar

Remove and Install Camshaft
Start By:a. rocker arm and shaft assembliesb. remove fan drive Fluid Spillage ContainmentCare must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to the Tools And Shop Products Guide, NENG2500, for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and mandates.
Typical Example When removing cover (1) from the timing gear cover, remove the Allen head screw first. The ten bolts holding the cover will keep pressure on the gasket, which will allow the Allen head screw to be removed more easily. After the Allen head screw has been removed, remove the remaining ten bolts from cover (1).1. Remove cover (1) from the timing gear cover. 2. Remove bolts (3) and cover (2) from the flywheel housing.3. Remove plug (4).
For additional information on positioning, the crankshaft and camshaft at the compression stroke for No. 1 cylinder (TC), refer to the Testing and Adjusting.
4. Put the camshaft and crankshaft in the compression stroke position (TC) for the No. 1 piston as follows:a. Insert the longer bolt (3) [from cover 2] into the hold for plug (4).b. Push bolt (3) against the flywheel. Use a ratchet and Tooling (A) to turn the engine and flywheel (in the direction of engine rotation) until bolt (3) seats into the hole in the flywheel.c. Ensure that the mark on timing gear (5) and casting rib "X" on timing gear cover (6) are in alignment.
Do not turn the crankshaft or camshaft while camshaft timing gear (5) is removed whenever the rocker shaft assemblies are installed. Damage can be caused to the pistons and valves, or both.
Typical Example 5. Disconnect the wire and remove timing sensor (7).6. Remove one bolt (8) and install a guide bolt [Tool (B)], as shown.7. Remove the remaining six bolts (8). Use Tool (C) and a strap to attach a hoist to gear (5). Remove gear (5). 8. Remove three bolts (9) and thrust plate (10).9. Remove the camshaft and adapter plate (11). 10. Remove adapter plate (11) from camshaft (12).
Care must be used when removing the camshaft to not damage the highly finished surfaces of both the camshaft and camshaft bearings. Use the following steps and the recommended tooling to avoid damage to the engine and components.
Typical Example 11. Use the rocker arm assembly bolts to install Tooling (D) into the bolt holes marked "Y", as shown. 12. Install Tool (E) onto timing gear cover (6), as shown. Do not tighten the bolts for Tooling (E) at this time.
It is necessary to install two pilots [Tool (F)] onto the camshaft. Tool (F) will support the rear of camshaft (12) as the camshaft is moved out of the cylinder head and into Tool (E).
13. Move the cam far enough forward to install one Tool (F) into