Yanmar 6LY2-STE — Sea water pump disassembly
Repair & overhaul
For the Yanmar 6LY2-STE, from the Yanmar service manual.
Applies to: Yanmar 6LY2-STE, Yanmar 6LY2-STE/6LY2A-STP/6LYA-STP engine
Procedure
- Remove rubber hose and pump assembly.
- Remove cover and take out O-ring, impeller, wear plate.
- Remove mechanical seal side stop ring.
- Remove bearing stop ring.
- Tap out pump shaft, bearings, drive gear.
- Remove oil seal and mechanical seal.
Tools required
- Pliers Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Yanmar 6LY2-STE →
Source: Yanmar service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.