SERVICE MANUALStep 2 and recheck the radial shaft movement asoutlined in Step 3 (Fig. 10). If the readings exceed thoseobtained in Step 3, indications are that the compressorwheel is contacting the compressor housing andservicing is required.Fig. 10. Checking Radial Shaft Movement withCompressor Housing RemovedCOMPRESSOR ENDCheck for dirt accumulation inside thecompressor housing.COMPRESSOR WHEELExamine carefully for bent blades, evidence ofrubbing on O.D., face and back of wheel, and for piecesof blade broken off. If any of these conditions exist,wheel must be replaced.TURBINE WHEELRemove core assembly from turbine housing.Examine wheel carefully for evidence of rubbing onhousing. Check for bent or broken blades. Do notattempt to straighten blades.DISASSEMBLY1.Cover intake and exhaust ports. Wash theexterior of the turbocharger.Use a commercially approved cleaneronly. A caustic solution will damage certainparts and should not be used.2.Place turbocharger on bench.3.Mark the assembled position of parts (Fig. 11)as follows:a.Compressor housing-to-back plate.b.Back plate-to-center housing.c.Center housing-to-turbine housing.Fig. 11. Related Positions of Parts1. Turbine Housing2. Center Housing3. Back Plate4. Compressor Housing5. Punch MarksCTS-4104PRINTED IN UNITED STATES OF AMERICAPage 10
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