Reply To: 1956 Johnson 15HP Rod bearing clearance

[Don]

I tried to do a little research, but don’t have access to a 56 FD parts catalog. Seems like the big end rod cage and bearings are the same when comparing the Gale to a 57 FD. The wrist pin retainers are the same also, which leads me to believe the wrist pin diameters might be the same. The57 FD 18hp shows a rod using two small needle bearings on the wrist pin end, while the later model Gales shows the more conventional caged needle set up… Guess I should compare the Gale part numbers to a later model FD.
1962 FDs show the same rods as some of the Gale 15s, so am not sure just what the differences are…