09-07-2023, 08:18 PM
The lip seal repaces the felt seal which is unsatisfactory, especially after more than 90 years. The felt wears the journal and doesn't seal well either. A lip seal on the flywheel, coupled with the provision of a drain to take oil coming through the rear main bearing back to the sump is a much better set up. It laso improves the lubrication of the rear main which is very much hampered by the felt.
Jim