Seawater Pump Reassembly - Yanmar 3YM30 Sevice Manual

9. Cooling water system

9.2.4 Seawater pump reassembly

(1) When replacing the oil seal, coat with grease and insert.
(2) Mount the pump shaft, ball bearing and V-pulley to the pump unit and fit the bearing
retaining ring.
NOTE:
Coat the shaft with grease.
(3) Mount the impeller.
(4) Mount the O-ring and the cover.
NOTE:
Replace the O-ring with new one.
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