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C-10, C-12, C-15 and C-16 Industrial Engines – Engine Vibration

Probable Causes

  • Vibration damper

  • Engine supports

  • Driven equipment

  • Engine misfiring or running rough

Recommended Actions

Table 1
1. Vibration Damper

A. Check the vibration damper for damage.

B. Inspect the mounting bolts for damage and/or for wear.
   

 Damage to vibration damper
   		 Result: The vibration damper has not been damaged.

Proceed to Test Step 2.

Result: The vibration damper has been damaged.

Replace the vibration damper. Replace any damaged bolts. Refer to the Disassembly and Assembly manual.
   
2. Engine Supports

A. Inspect the mounts and the brackets while you run the engine through the speed range. Look for mounts and brackets that are loose and/or broken.
   

 Loose or broken mounts
   		 Results: Mounts and brackets are not damaged.

Proceed to Test Step 3.

Results: Mounts and brackets are damaged.

Tighten all of the mounting bolts. Install new components, if necessary.
   
3. Driven Equipment

Check the alignment and the balance of the driven equipment.
   

 Alignment and balance of driven equipment
   		 Result: Driven equipment is OK.

STOP

Result: Driven equipment is NOT OK.

Repair or replace the faulty driven equipment.