RADIATOR 5354973 - Caterpillar

to the vibration damper or failure of the vibration damper will increase torsional vibrations. These vibrations will result in damage to the crankshaft and in damage to the other engine components. A deteriorating vibration damper will cause excessive gear train noise at variable points in the speed range.See the Service Manual, "Engine Disassembly and Assembly" for the procedure to install a new damper.Caterpillar recommends replacing the damper for any of the following reasons:
The engine has had a failure because of a broken crankshaft.The damper can be used again if none of the above conditions are found. The damper can be used if the damper is not damaged.In the damper, a wobble can occur on the outer ring. Some of the wobble of the outer ring is normal. If a wobble is present, replacement of the damper is not necessary. You can confirm an acceptable wobble by seeing the Service Manual, "Engine Disassembly and Assembly" for the procedure to check the damper.Marks of the damper are on the hub and on the ring. These marks will indicate the condition of the vibration damper. If the marks are not in alignment, the rubber seal between the ring and the hub has separated from the ring and/or from the hub. Install a new damper if the marks are not in alignment .Note: Refer to the Service Manual, "Engine Disassembly and Assembly" for the necessary replacement procedure.Caterpillar recommends checking the engine mounts for deterioration. This will prevent excessive engine vibration that is caused from improper mounting.