Honda BF135A Manual page 514

6) Check the pump impeller for cracks, wear or damage from
overheating, and replace if necessary.
7) Remove the pump impeller, pump liner and the water
pump O-ring from the impeller housing.
Replace the O-ring with a new one on assembly.
8) Remove the two 6 x 20 mm flange bolts and remove the
water seal housing.
9) Remove the 58.5 x 3.5 mm O-ring from the water seal
housing.
Replace the O-ring with a new one on assembly.
10) Before removing the 23 x 36 x 6 mm water seal, check the
water seal lip for cut. Replace if necessary,
11) Remove the two 23 x 36 x 6 mm water seals from the water
seal housing using a commercially available oil seal
remover.
Replace the water seals with the new ones on assembly.
14-47
[1]
IMPELLER
HOUSING
[4]
WATER PUMP
O-RING
[1]
WATER SEAL
HOUSING
[2]
23 x 36 x 6 mm
WATER SEAL
[2]
PUMP LINER
[3]
PUMP IMPELLER
6 x 20 (2)
[2]
58.5 x 3.5 mm
O-RING
[1] WATER SEAL
HOUSING