TRANSMISSION GP-MARINE 6I4589 - Caterpillar

Removal Procedure
Start By:
Remove the rocker shaft assembly and pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrods - Remove".
Remove the lifters. Refer to Disassembly and Assembly, "Lifter Group - Remove and Install".
Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
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, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Note: The camshaft assembly contains the following components: camshaft, camshaft bearing and gear
Illustration 1 g00700940
Remove bolts (1) that attach the camshaft bearing to the cylinder block.
For installation purposes, note the position of the timing marks on the idler gear (2) and on the camshaft gear (3) .
Illustration 2 g00700952
Remove camshaft assembly (4) from the cylinder block.Note: If the camshaft assembly is replaced, the fuel injection pump timing must be checked. Refer to Testing and Adjusting, "Fuel Injection Timing - Check".