Honda Outboards BF40A/BF50A Service Manual, Page 140Get this manual
HONDA BF3I5A45A
WATER PUMP
aDISASSEMBLYREASSEMBLY
1) Remove the gear case assembly (P11-9)[30] [3] IMPELLER HOUSING COLLAR (4)
[1] 40 mm HEXBOLT (41
IMPELLER
(4] SHIFT ROD B
Do not reuse(28] WATERTUBE_ _
(5] GROMMET BAND A
SEAL RING
(27] PUMP LINER
16] SHIFT ROD GROMMET
[25] WOODRUFF
REASSEMBLY: Do not forget to install
6 12 mm HEXBOLT (12) SEAL HOLDER
SET PLATE
(13) SEAL HOLDER
[14] 47 3.1 mm O-RING
REASSEMBLY: Do not reuse