Well after my last idiot episode racepres and Johnjzjz gave some good advice: don’t rush, etc. So Friday night I’m dead tired but really want to work on the bike so idiot me decided to thread an e-z coil insert into my stripped ignition hold down screw in my cam cover. Messed it all up and wound up snapping off the stand-off screw for the ignition plate. Now what? I ordered 5/32 and 11/32 end mills to drill and retap. If I go with a new cam cover, do I have to line-ream the pinion and cam bushings?

Yeah, I’m using a mill. I like end mills because they don’t wander around like split-points do.

5/32-113/2 is kind of a big jump,.156-.343. The broken screw is what a #8 or 10? The 8 would be real close to 5/32 and a 10 is real close to 3/16. Not questioning you but just saying check twice cut once.

good spot...I meant 5/32 and 11/64 but got my denominators all catty-wampus. Yeah...really. On a Bridgeport mill...really. Want me to send some pics? Can’t use an end mill in a hand drill....yeah...I know...but thanks for the advice. I like end mills because they don’t wander like a drill bit. And I’ll probably weld-fill the hole and re-tap. And I get to use my new Palmgren cross-feed rotary table.