Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 289Get this manual
REVERSE GEAR ASSEMBLYCOMPONENT REASSEMBLY
Shift Spool Assembly
INSPECTION 1Clean the assembly with suitable solvent and dry the parts using compressed airnicks and burrs may be smoothedIf any parts are damaged or worn beyond repair it will be necessary to replace the complete shift spool assemblyIndividual parts are not available for the assembly
NOTE: Complete the instructions in this section only if the assembly components have been disassembled and repaired or replaced
IMPORTANT: The appearance of the forward and reverse gear is almost identicalThere are two ways to distinguish between the reverse and forward gearsThe reverse gear has shorter hub and it has groove
cut into the back of the gear just Inside the thrust bear-
2Inspect the shift spool assembly for damageSmall
ing race
3Inspect the shift spool for wear in the area where the