Yamaha F40B - Removing the Water Pump; Checking the Water Pump

LOWR
Lower unit
6-5 67C3K11
Removing the water pump
1. Remove the water pump housing 1 and
impeller 2.
2. Remove the Woodruff key 3 from the
drive shaft, and then remove the outer
plate cartridge 4.
3. Remove the dowels 5 from the lower
case.
Checking the water pump
1. Check the water pump housing. Replace
if deformed.
NOTE:
If the engine overheated, the inside of the
water pump housing may be deformed,
therefore be sure to remove the insert car-
tridge when checking the housing.
2. Check the impeller, insert cartridge, and
outer plate cartridge. Replace if cracked
or worn.
3. Check the Woodruff key and the keyway
in the drive shaft. Replace if worn or
deformed.
S67C6007
3
55
2
1
4