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Turbocharger WASTEGATE

  1. Engine must be cool. Remove exhaust manifold insulator and side insulator. Remove hose connected to actuator and connect compressed air source with pressure gauge. See Fig 1 .
  2. Apply compressed air to actuator. Apply 8.5 psi (0.6 kg/cm2 ) on MX-6 and 626. Verify actuator rod moves when connecting and disconnecting hose supplying compressed air.
CAUTION: DO NOT apply compressed air more than 14 psi (1.0 kg/cm2 ).
Fig 1: Testing Wastegate Actuator
G200156Courtesy of MAZDA MOTORS CORP.