Gear Housing Reassembly; Gear Housing Inspection - Mercury 225 EFI Service Manual

Gear Housing Reassembly

Gear Housing Inspection

1. Clean the gear housing thoroughly with a suitable solvent and a hard bristle brush.
Dry the gear housing thoroughly using compressed air. Insure that all sealants, lock-
ing agents and debris are removed.
2. Verify the 2 oil circulation holes in the drive shaft bore and the shift shaft hole are clear
and free of debris.
3. Inspect the gear housing for excessive corrosion, impact or any other damage. Exces-
sive damage and/or corrosion requires replacement of the gear housing.
4. Inspect the bearing carrier retainer threads in the gear housing for corrosion and/or
stripped threads. Damage or corrosion to the threads requires replacement of the
gear housing.
5. Inspect bearing race/cup contact areas for evidence of bearing cup spinning. Check
that bearing cups are not loose in bearing bores. Any one bearing bore in which the
race/cup is loose will require replacement of the gear housing.
6. Inspect for blockage in water inlet holes and the speedometer hole, clean as neces-
sary. Be careful not to enlarge the speedometer hole as this could cause erroneous
speedometer readings.
7. Verify that the locating pins are in place in the gear housing and that the corresponding
holes in the drive shaft housing are not elongated. The drive shaft may break if the
housings are not aligned properly due to missing locating pins or elongated holes.
90-884294 OCTOBER 2001
RIGHT HAND NON-RATCHETING
Page 6A-45