Captainphx's build

[captainphx]

Looking for a suggestion...

Doing a particularly difficult ream. Trying to ream the mounting holes where the trim actuator scissor link attaches to the HS stab. Not a lot of room to work. I did cut the .1875 reamer shorter. Got thru the aircraft left hole, and now am trying to get thru the aircraft right hole. That hole seems somewhat undersized, requiring the need for the reamer to remove a fair amount of material. I can't even get the reamer to start in the hole. There is so little room to work, I can't get much pressure on the reamer. Anyone have any suggestions?

[Meyer]

One option is take a small rat tail file and try to take the powder coat off. Obviously use it symmetrically.

[captainphx]

Yeah, I think my reamer has gotten dull and I ordered a new one. Coming tomorrow. Hopefully it will bite. Tried the rat tail file but it is too long. I must've missed this hole during reaming. Now the ribs are installed making for a very tight area to work in.

[captainphx]

Are the stick pivot bearings supposed to be seated all the way down into the bottom of the bushing or just flush with the control column bushing?

[Meyer]

I believe they should be all the way down. You could lay it on a table and put the specified bolt through it, along with some calipers and do a prelim measurement without full install if that makes sense.

[captainphx]

So, what's the round hole in the center of the console for?

[aviator79]

Probably the parking brake? If you're not doing a parking brake, just upholster over it.

[captainphx]

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[bbs428]

Lot's of great progress! Enjoyed all your pic's.

[jrevens]

I'll take a stab at this also, Paul. First of all, I don't believe that those holes need to be a real close tolerance fit. They would not be using clevis pins if they were. The nicer the fit the better, but they're not super critical like many wing attachment designs on aircraft are. If I'm wrong about that I hope that someone else will chime in. As far as your issue goes, I think it might be OK to install as they are, and then carefully run a reamer through everything together. I found that the curvature (ID) of those fittings/brackets, as received from the factory, does not accurately match the OD of the spar tube. I happened to have a piece of steel pipe the same diameter as the spar, and I used that with my press to flatten them out a little so that they fit better and matched the surfaces they were being mounted on.

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