Shimming (counter rotation model)
8-60
Selecting the reverse gear shim (T1)
and forward gear shim (T2)
1. Select:
• Reverse gear shim (T1)
• Forward gear shim (T2)
• Do not reuse shims.
• For reverse gear shim (T1), use only 1 shim
to obtain the specified shim thickness.
• For forward gear shim (T2), use up to 3 shims
to obtain the specified shim thickness.
Selecting the pinion shim (T3)
• Spray anti-rust lubricant on the gears and
bearings before installation. Do not apply
gear oil to the parts. Otherwise, correct mea-
surements cannot be obtained.
• Keep the parts free of foreign material, such
as dirt and lint.
Be careful not to damage the measurement
plane surface of the special service tool.
Otherwise, correct measurements cannot
be obtained.
1. Disassemble:
• Lower unit
See “Water pump and shift rod” (8-11),
“Propeller shaft housing (counter rotation
model)” (8-48), and “Drive shaft and lower
case (counter rotation model)” (8-54).
2. Install:
• Adapter assembly
• Specified reverse gear shim (T1)
• Reverse gear assembly
See “Installing the forward gear” (8-34).
3. Select:
• Pinion shim (T3)
See steps 3–7 in “Selecting the pinion
shim (T3)” (8-39).
Selecting the propeller shaft shim (T4)
1. Assemble:
• Propeller shaft housing assembly
• Original propeller shaft shim (T4)
• Thrust bearing
• Propeller shaft
• Tapered roller bearing
• Thrust washer
• Forward gear
• Shift plunger
•Balls
•Slider
• Dog clutch
• Cross pin
• Spring
•O-ring
See “Assembling the propeller shaft hous-
ing and forward gear” (8-51).
2. Install:
• Propeller shaft/propeller shaft housing as-
sembly
•Key
• Claw washer (do not bend the tabs)
• Ring nut
See steps 2–5 in “Installing the propeller
shaft housing assembly” (8-25).
• If the original shims (T4) are missing, mea-
sure the free play without any shims.
• Do not reuse shims (T4) if deformed or
scratched.
3. Measure:
• Propeller shaft free play
Shim thickness (T1)
2.15 mm
Shim thickness (T2)
0.67 mm
Ring nut
250 N·m (25 kgf·m, 184 lb·ft)
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