Kohler — Turbocharger waste gate adjustment
Adjustments
From a Kohler service manual covering: KD 702, KDW 1003, KDW 1404, KDW 702, KDW 702 - 1003 - 1404. Check it applies to your exact model before use.
Applies to: Kohler KDW 1003, Kohler KDW 1404, Kohler KDW 702, Kohler KDW 702 / KDW 1003 / KDW 1404 engine, Kohler KDW702 engine, Kohler KDW1003 engine, Kohler KDW1404 engine
Procedure
- Disconnect waste gate tube from turbocharger compressor side.
- Connect a 0-2 bar pressure gauge with T-joint to air network via reducer.
- Set network air supply pressure 1.5 to 2 bar.
- Make a 1.55 mm hole B in the pressure gauge pipe.
- Set dial gauge feeler on terminal 2; feed air until terminal 2 moves A = 1 mm.
- Read pressure; must be 830÷890 mm Hg (1.11÷1.19 bar).
- If low: unscrew locknut 1, remove split pin 9, disconnect rod 8 and adjust terminal 2.
- Keep rod steady and do not allow torsion during rotation.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Calibration pressure 830÷890 mm Hg (1.11÷1.19 bar)
- A = 1 mm
- Hole B 1.55 mm diameter
Full service-parts list: Kohler KDW 1003 →
Source: Kohler 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.