drilling cotter pin hole
I got my leg back from Harmon when I did the mod. Everyone cautioned about drilling the cotter hole, but I used a fairly new bit, a little cutting oil, and set it up on the drill press. Used a fair bit of pressure, and it cut thru in maybe 30 seconds, then went right thru the other side.
I drilled another hole about 90 degrees to that so I'd have another choice when tightening up the nut. Didn't seem to be a big deal, thankfully.
Deburr the threads after drilling to ensure the nut spins on freely.
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Perry Y.
RV-9a - SOLD!....
Lake Country, BC
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