Yanmar 6LY2-STE — Fuel injection nozzle adjustment
Adjustments
For the Yanmar 6LY2-STE, from the Yanmar service manual.
Applies to: Yanmar 6LY2-STE, Yanmar 6LY2-STE/6LY2A-STP/6LYA-STP engine
Procedure
- Mount fuel injection nozzle on nozzle tester.
- Measure injection starting pressure.
- Adjust with shims to specified pressure.
- Check seat oil tightness.
- Check spray condition.
Tools required
- Nozzle tester Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 290~300 kgf/cm² for 6LY2-STE Amazon eBay $25.00 FridayParts $945.00/6LY2A-STP FridayParts $945.00
- 260~270 kgf/cm² for 6LYA-STP FridayParts $109.79
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.