Oil Leak at Vibration Damper Area Complaint Oil leakage observed near the vibration damper, traced to a...

Bulletin number

LI01.40-N-077649

Component

Engine

Summary

Oil Leak at Vibration Damper Area Complaint Oil leakage observed near the vibration damper, traced to a faulty radial shaft sealing ring at the front crankshaft flange. (see photo in attachment) Cause The sealing lip of the radial shaft sealing ring has worn a groove into the front crankshaft flange. This wear compromi- ses the sealing integrity between the crankshaft and the radial shaft sealing ring in its original assembly position. Remedy Install a crankcase cover equipped with a design-optimized radial shaft sealing ring. This updated sealing ring features a revised lip structure that relocates the sealing surface outside the worn area of the crankshaft.

Owners of these vehicles have filed 9 complaints in the engine category.