C3.3B Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines – Turbocharger – Inspect

Use the following procedures in order to inspect the turbocharger and related components to verify that all components are functioning correctly.

    Illustration 1g02917597

    Location of turbocharger gaskets

    (1) Turbine housing

  1. Inspect the exhaust port and inlet port of the turbine housing to ensure that there are no exhaust leaks. Retighten the bolts and nuts, or replace the turbocharger gasket, if any exhaust gas leaks are found.

    Illustration 2g02918177

    Location of band clamps

    (2) Compressor housing

    (3) Inlet hose

  1. Inspect the inlet hose of the compressor cover in order to ensure that there is no air leak.

  1. Check for loose connections or cracks in the suction side of the intake hose. Replace the clamps or intake hoses, if an air leak is found. Refer to Illustration 2.

    Illustration 3g02918097

  1. Check the radial clearance of the compressor wheel and turbine wheel of the turbocharger. Replace the turbocharger assembly if the compressor wheel or turbine wheel contact the housing.

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