TURBOCHARGER INSPECTION [MZR-CD (RF Turbo)]

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Note

•  If the following malfunctions exist, diagnosis the turbocharger using the following symptom troubleshooting procedures.

1.  Lack of power: perform “NO.14 LACK/LOSS OF POWER”. (See NO.14 LACK/LOSS OF POWER-ACCELERATION/CRUISE [MZR-CD (RF Turbo)].)

2.  Knocking: perform “NO.15 KNOCKING/PINGING”. (See NO.15 KNOCKING/PINGING [MZR-CD (RF Turbo)].)

3.  Oil leak: perform “NO.18 HIGH OIL CONSUMPTION/LEAKAGE”. (See NO.18 HIGH OIL CONSUMPTION/LEAKAGE [MZR-CD (RF Turbo)].)

4.  Excessive black smoke: perform “NO.21 EXCESSIVE BLACK SMOKE”. (See NO.21 EXCESSIVE BLACK SMOKE [MZR-CD (RF Turbo)].)

5.  Noise: perform “NO. 23 ENGINE NOISE”. (See NO.23 ENGINE NOISE [MZR-CD (RF Turbo)].)

Compressor Wheel Inspection

1.  Remove the air pipe between the air cleaner and the turbocharger. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)

2.  Visually inspect the compressor wheel from view A and verify that all fins are free from damage, cracks or bends.

•  If there are damaged fins, cracks or bends, replace the turbocharger. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)

Note

•  To make the inspection easier, set a small mirror as shown in the figure and use a penlight.

•  If the compressor wheel is interfering with the compressor housing, it is likely that the fin edges are cracked, damaged, or bent.

•  If the compressor wheel is damaged, check the following before replacing the turbocharger to avoid reoccurrence of the malfunction.

―  Foreign material in intake air/exhaust system.

―  Oil pipe clogging.

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Turbine Wheel Inspection

1.  Remove the front pipe. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)

2.  Visually inspect the turbine wheel from view B and verify that all fins are free from damage, cracks or bends.

•  If there are damaged fins, cracks or bends, replace the turbocharger. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)

Note

•  To make the inspection easier, set a small mirror as shown in the figure and use a penlight.

•  If the turbine wheel is interfering with the turbine housing, it is likely that the fin edges are cracked, damaged, or bent.

•  If the turbine wheel is damaged, check the following before replacing the turbocharger to avoid reoccurrence of the malfunction.

―  Foreign material in intake air/exhaust system.

―  Oil pipe clogging.

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