I am getting ready to install the bellcranks in my RV-8 wing. I reamed out the bushings with a 1/4" drill bit. Bolts go in reasonably easily. I used a 3/8" drill bit and a tap wrench to remove some of the powder coating and stuff from the WD-421 bellcranks.
Mystery - The 3/8 inch drill bit slides through the bellcrank easily. The bushing will not go through. It will slide almost all the way through easily, but then gets stuck with about 1/4" to go. It does this from either side, in either orientation. I thought the bushing was bent but the bolt goes through true. Measured the bushing and it is .375 at either end and in the middle. I thought the bellcrank itself might be bent but the drill bit slides through easily. If the welds were intruding into the barrel, it would bind as soon as I started to put the bushing through.
I am at a loss. Any ideas out there.
I uploaded a video to YouTube of the bellcrank/bushing.
https://youtu.be/oBnGC2zptB8
Mystery - The 3/8 inch drill bit slides through the bellcrank easily. The bushing will not go through. It will slide almost all the way through easily, but then gets stuck with about 1/4" to go. It does this from either side, in either orientation. I thought the bushing was bent but the bolt goes through true. Measured the bushing and it is .375 at either end and in the middle. I thought the bellcrank itself might be bent but the drill bit slides through easily. If the welds were intruding into the barrel, it would bind as soon as I started to put the bushing through.
I am at a loss. Any ideas out there.
I uploaded a video to YouTube of the bellcrank/bushing.
https://youtu.be/oBnGC2zptB8