Yamaha F30A 2018, Service Manual

Page: 247 / 348

8-27
S himming
Measuring the forward gear backlash
and reverse gear backlash before dis-
assembly
1. Install:
• Lower unit (onto a repair stand)
2. Remove:
• Water pump assembly
• Outer plate cartridge
See “Water pump” (8-3).
3. Measure:
• Forward gear backlash
• Reverse gear backlash
Out of specification

See “Selecting the
pinion shim (T3)” (8-32).
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Set the gear shift to the N position.
b. Set up the special service tools “1”, “2”,
and “3”, and then tighten the center bolt “3”
temporarily.
c. Turn the lower unit so that the propeller
shaft is pointing down.
d. Turn the drive shaft 10 turns or more to
seat the tapered roller bearing.
Forward gear backlash
0.18–0.65 mm (0.0071–0.0256
in)
Reverse gear backlash
0.75–1.22 mm (0.0295–0.0480
in)
Shift rod socket “1”
90890-06681
Shift rod socket “1”
YB-06681
R
N
F
1
A. Worldwide
B. USA and Canada
Bearing housing puller claw L “1”
90890-06502
Bearing housing puller “1”
YB-06207
Stopper guide plate “2”
90890-06501
Universal Puller “2”
YB-06117
Center bolt “3”
90890-06504
1
1
A
2
3
B
1
1
2
3