This series of 24 photos, kindly furnished by Homer Knapp, depicts modifications he made to an early Lilac MF-39 with one-piece type crankcase. Other early V-twins also used this type crankcase. The cylinder modifications shown should be applicable to both early and late motors.
These modifications were primarily undertaken to improve lubrication. While the photos are not captioned, it is hoped that the procedures will be clear. Perhaps they will give you ideas you might like to incorporate in your motor rebuild.
If you are interested in duplicating these procedures you may wish to call Homer Knapp at his business:
Hollywood Motorcycle Machine
5419 Denny Ave.
North Hollywood CA 91601
PRINTING THESE PHOTOS:
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