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1. Remove the exhaust outlet piping and inlet piping from the turbocharger. 2. Turn the turbine and compressor wheel by hand.
3. The assembly should turn freely. 4. Inspect the turbine wheel and compressor wheel for contact with the turbocharger
housing. 5. There should NOT be any visible signs of contact between the turbine or
compressor wheel and the turbocharger housing. 6. NOTE: When installing or replacing V-band clamps, position the gap tightening
screw down if possible so any water will drain away. 7. Visually check for oil leaks.
3. Engine Mounts
Gabar Mounting Caterpillar recommends inspecting the engine mounts for proper bolt torque. This will
prevent excessive engine vibration caused from deterioration andor improper mounting. See your Service Manual or OEM truck manufacturer for recommended torque values
Vibration Damper
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Gambar……Vibration damper. Damage to, or failure of, the damper will increase torsional vibrations and result in damage
to the crankshaft and other engine components. A deteriorating vibration damper will cause excessive gear train noise at variable points in the speed range
4. Air Compressor
1. Release the air pressure in the air tank until the air pressure is zero. 2. Remove discharge fittings and inspect compressor discharge port and discharge
line for excessive carbon deposits. The discharge line must be cleaned or replaced and the compressor checked more thoroughly if there is excessive carbon build-up
in either the discharge line or compressor discharge port.
5. Thermostat
Replace Thermostat, Gaskets and Seal Replacing your thermostat prior to failure is a recommended preventive maintenance
practice because it reduces the chances for unscheduled downtime. Failure to replace the thermostat on a regularly scheduled basis could cause severe engine damage and added
cost because of damage to other engine components.
1. Stop the engine and allow to cool. Loosen the coolant filler cap slowly to relieve any pressure and remove the cap.
2. Drain the coolant from the cooling system to a level below the thermostat housing.
