Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 308Get this manual
8Remove Ihe propeller nul, washer, and the pinion nut adaptorabIf the Backlash is to Specification, skip the next step (8b), and go on to step followingIf the Backlash is not to Specification, complete the following instructions to install different size spacer shim under the forward gear thrust race(1 Remove the bearing carrier retainer, lab washer, and the bearing carrier(2 Using the hook tool, remove the forward gear bearing adaptor(3 Insert the forward gear installation tool into the forward gear and remove the forward gear, thrust bearing and thrust race(4 Remove the spacer shirr (5 Complete the instruction found in section "Forward GearBearing Carrier Assembly", 'Installation(For Checking Forward Gear Backlash), section found on page 6B-41(6 Recheck backlash as outlined in the "Forward Gear Backtash", 'Checking' section found on page 6B-459Remove the following items as outlined following: abcRemove the bearing carrier retainer, tab washer, and the bearing carrierUsing the hook 1001 remove the forward gear bearing adaptorInsert the forward gear installation tool into the forward gear and remove the forward gear, thrust bearing and thrust raceRemove the propeller shaftRemove the spacer shim"Drive ShaftBearing Preload Tool", 'Removal' section found on page 68-39Shaft Assembly", 'Removal' section found on page 68-19Remove the reverse gear Propeller Shaft Assembly