GEAR HOUSING
90-826883R2 JUNE 1998 Page 6A-11
Draining and Inspecting Gear Lubricant
WARNING
If gear housing is installed on outboard, disconnect (and isolate) spark plug leads
from spark plugs before working near the propeller.
1. With gear housing in normal running position, place a clean pan under housing and
remove vent plug and fill/drain plug (with gaskets).
b
a
a-Vent Plug/Washer
b-Drain Plug/Washer
2. Inspectgearlubricantformetalparticles(lubricantwillhavea“metalflake”appearance).
Presenceoffinemetalparticles(resemblingpowder)onthedrainplugmagnetindicates
normalwear.Metalchipsonthemagnetindicatetheneedforgearhousingdisassembly
and component inspection.
3. Note color of gear lubricant. White or cream color indicates presence of water.
4. Presence of water indicates the need for disassembly and inspection of oil seals, O-
rings, gaskets and components for damage. Pressure check prior to disassembly to
determine leak area.
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