Yanmar — Turbocharger Turbine Cleaning (TPS44, 720/750 min-1, water cleaning)
Maintenance
From a Yanmar manual — check it applies to your exact model before use.
Browse Yanmar generators & specs →
Before you start
- Periodic assembly and servicing is required separately.
Procedure
- Close the thermostat (2) and stop valve (7).
- Connect the freshwater supply line (1).
- Adjust the turbine between 400-450°C.
- Wait for approx. 10 minutes.
- Open the pressure thermostat (2) and set water pressure to 0.25-0.45 MPa.
- Open the stop valve (7) for 30 seconds and close it again.
- Wait for approx. 3 minutes so the injected water can evaporate.
- Repeat steps 6 and 7 two or three times.
- Close the stop valve (7) and thermostat (2).
- Run dry the turbocharger at constant load approx. 10 minutes, then increase engine load slowly.
- Repeat washing if the turbocharger is affected by vibrations not previously present.
- Remove the flexible hose (4).
Tools required
- Removable flexible tube Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Turbine temperature 400-450 FridayParts $5324.98°C
- Water pressure (gauge) 0.25-0.45 MPa
Source: Yanmar 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.