BRP Johnson 4HP, Service Manual, Page: 137 / 185

8-7
GEARCASE
PROPELLER SHAFT COMPONENTS
PROPELLER SHAFT COMPONENTS
•
Inspect the push rod and the push rod pin. If excessive
wear or other damage is found, replace.
•
Inspect the clutch dog shifter. If excessive wear, cracks,
chipping or other damage is found, replace.
•
Inspect the dog pin. If excessive wear, bent or other dam-
age is found, replace.
•
Inspect the propeller shaft. If excessive wear, twisted or
other damage is found, replace.
•
Measure the return spring free length.
Clutch return spring free length (L)
Standard: 46 mm (18.1 in)
Service limit: 43 mm (16.9 in)
If the measurement exceeds the service limit, replace.
PROPELLER SHAFT BEARING HOUSING
•
Inspect the housing. If crack or other damage is found,
replace the housing.
•
Visually check the oil seals. If cuts, nicks, excessive wear
or other damage is found, replace the oil seal.
•
Visually check the bearings. If pitting, noisy, roughness or
other damage is found, replace the bearing.
Do not re-use the oil seal and the O-ring once removed.
Always use new parts.
Replacing propeller shaft bearing housing oil seal
1. Remove the oil seals using a screwdriver.
2. Apply DPL to the outer circumference of the oil seal.
3. Drive the oil seals down into the housing with the lipped
portion toward the propeller. (one at a time)
4. Apply Triple-Guard grease to the seal lips.

Triple-Guard Grease
Direction of propeller