Crankshaft removal for drill and tap ??
- Thread starter mlanzoni
- Start date
- Tags crankshaft drill removal
well if your doing it on a lathe yes it has to come out for best results . if you have a drill bushing no you could just slip it on and drill it and run the tap in there .
there was a few that were made on here no idea where they are now . was talk about making some but there was never any real progress made as to doing it .
i have toyed with the idea of making some drill guides and tap kits as this how to drill a shaft comes up pretty often .
there was a few that were made on here no idea where they are now . was talk about making some but there was never any real progress made as to doing it .
i have toyed with the idea of making some drill guides and tap kits as this how to drill a shaft comes up pretty often .
Metal Man, thanks for the info. With a name like metal man, I'm guessing you know your :censure:. If you ever make any drill guides and tap kits soon, please let me know. I just don't have the tools to do this myself but I wish I did. Never did it before, but always like trying new things. Thanks again.
I made a drill guide, and have used it to drill cranks on three engines. You don't need to remove the crank, but you really should use a drill press.
Set the engine on it's pull starter, on a rag, on the drill press (crank up). Make a small slit in a towel, slip the crank through, cover entire motor. Slip drill guide over crank. Drill 21/64" hole about 1-1/2" deep. Use oil when drilling and cutting threads with 3/8"-24 fine thread tap. I use a pen magnet to clean out the hole. You must contain metal shavings! You don't want them getting into the flywheel/magneto. I made my guide on a lathe out of 1" stock that was 2-1/2" long. I drilled it all the way through 21/64". Then I opened it up to 3/4", only half the way down.
Set the engine on it's pull starter, on a rag, on the drill press (crank up). Make a small slit in a towel, slip the crank through, cover entire motor. Slip drill guide over crank. Drill 21/64" hole about 1-1/2" deep. Use oil when drilling and cutting threads with 3/8"-24 fine thread tap. I use a pen magnet to clean out the hole. You must contain metal shavings! You don't want them getting into the flywheel/magneto. I made my guide on a lathe out of 1" stock that was 2-1/2" long. I drilled it all the way through 21/64". Then I opened it up to 3/4", only half the way down.
