Aux. Engine: Abnormal Vibration

Phenomenon1: Engine Sounds

Reasons & Countermeasures:

1. Loose Mounting Bolts.
Countermeasure: Tighten Bolts.

2. Loose Bolts on Holding Moving Parts.
Countermeasure: Tighten Bolts.

3. Excessively Worn Cylinder Liners (Seizing).
Countermeasure: Maintenance/Replacement.

4. Excessive Intake & Exhaust Valve End Clearance.
Countermeasure: Adjustment.

5. Increase in Gear Backlash.
Countermeasure: Adjustment/Repair.

6. Abnormal Lubricating Oil Pump.
Countermeasure: Maintenance/Replacement.