Selecting The Pinion Shim (T3) - Yamaha F225F Service Manual

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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
measurements cannot be obtained.
• Keep the parts free of foreign material,
such as dirt and lint.
1. Obtain the calculated value (B) based on
marks (P) and (H) on the pinion. See
"Calculated value (B) table" (8-46).
Example:
When mark (P) is 000 a and mark (H) is 020
b, the calculated value (B) is 0.73 mm.
–011 –010 –009 –001 000
000
005
010
b
015
B
020
025
030
A Mark (P)
B Mark (H)
2. Install the original pinion shims, drive
shaft, pinion, and drive shaft ring nut.
See steps 1–3 in "Installing the drive
shaft" (8-28).
TIP:
• If the original shims are missing, install new
shims with a combined thickness of 0.70
mm.
• Do not reuse a shim if deformed or
scratched.
3. Check that the drive shaft turns smoothly.
4. Set up the special service tools a and
b, and then remove the special service
tool b.
8-43
Lower unit
a
A
0.73
b
a
Pinion shimming gauge a: 90890-06675
Pinion shimming gauge rod b:
90890-06676
5. Measure the distance c between the
special service tool a and the pinion c.
c
a
6. Turn the drive shaft 90° clockwise and
measure the distance again.
g
b
c
a
d
e
f