Yamaha 40V - Removal and Installation Chart; Service Points; Water Pump Housing Inspection; Impeller and Insert Cartridge Inspection

6-4
LOWR
E
WATER PUMP
REMOVAL AND INSTALLATION CHART
Step Procedure/Part name Q’ty Service points
WATER PUMP REMOVAL Follow the left “Step” for removal.
Lower unit ass’y Refer to “LOWER UNIT REMOVAL”.
1 Bolt 4 8 × 30 mm
2 Washer 4
3 Water pump housing 1
4 O-ring 1
5 Insert cartridge 1
6 Impeller 1
7 Woodruff key 1
8 Cartridge plate 1
9 Plate gasket 1
10 Pin 2
11 Water seal cover 1
12 Water seal rubber 1
Reverse the removal steps for installation.
NOTE:
When installing the water pump housing,
align the hole in it with the projection in
the insert cartridge.
NOTE:
When installing the cartridge, turn the
drive shaft clockwise.
SERVICE POINTS
Water pump housing inspection
1. Inspect:
●
Water pump housing
Crack/Damage → Replace.
Impeller and insert cartridge inspection
1. Inspect:
●
Impeller
●
Insert cartridge
Crack/Damage → Replace.