Adjusting the Charging Pressure Regulator (Wastegate Valve)

Adjusting the Charging Pressure Regulator (Wastegate Valve)

The charging pressure regulator valve and diaphragm unit assembly is factory-set and should only be adjusted in conjunction with repairs, component replacement or fault tracing.

For adjustment/repair purpose the basic setting is performed mechanically and the basic charging pressure is then recorded on the road.





Note: Damage can be caused to the diaphragm if the diaphragm unit push rod is not prevented from rotating when adjusting the end piece. When clamping the push rod the tool should be positioned as close to the thread as possible in order to avoid burring the inner part of the rod. Burrs on the inner part of the rod can damage the bushing in the diaphram unit and disrupt the charging pressure control.