I've never heard a new gear has broken in a 240's electronic odometer, regardless if machined Delrin or molded nylon. Never. The only broken gears in my experience are the original 20+ years old turned-to-powder VDO gears. Once replaced, I reset the trip meter every fillup and have no fear whether I think of doing it while writing the mileage on the gas receipt or remember to do it while driving away.

Kudos to you Phil for even attempting to machine a part that small. Your skillful hands must be the guarantee there's no problem.


--
Art Benstein near Baltimore

"I have to use an 18 to 24 inch *1/2 inch drive extension* powering a flex-socket -this is ONE INSTANCE where a "snap together chain" of universals and sockets WILL NOT WORK you need to get ALL OF THE TORQUE you can into the bolt and NOT 'soaked up by the chain of floppies'...drive THAT with an 18" cheater and throw down on the friggin bolt...be CAREFUL...it will be 'tighter 'n crabs ass' until just before it lets go - at which point it will *POP* and come loose carving deep blue ripples in the tissues of your mind...Uh OH...flashback...." - TrickMick