I have a BCS206-122-12 starter that I would like to convert to work with my Lycoming IO360 which has a 149 tooth ring gear. I understand the ring gear can be changed but would prefer to not do that. Can the pinion gear on the starter be changed? My local starter overhaul shop can do it but doesn't know the pinion gear part to use or its availability.
What I have learned so far:
A 122 pinion has 9 V shaped teeth with 10/12 pitch.
A 149 pinion has ?# U shaped teeth with 12/14 pitch.
A search of another forum I found one post stating the 149 pinion has 10 teeth and is the same as a 90's Ford Taurus part 4-355. Can anyone confirm tooth count or part number?
What I have learned so far:
A 122 pinion has 9 V shaped teeth with 10/12 pitch.
A 149 pinion has ?# U shaped teeth with 12/14 pitch.
A search of another forum I found one post stating the 149 pinion has 10 teeth and is the same as a 90's Ford Taurus part 4-355. Can anyone confirm tooth count or part number?






