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Wing mount bore reaming

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1906

Joined: 30 Nov 2018
Posts: 58

Posted: Thu Jan 27, 2022 7:29 am Post subject: Wing mount bore reaming

Because of some looseness in the wing (55M), I am installing new wing bolts that are of a tighter tolerance. The measurements are a bit uneven between the mount on the wing and fuselage sides and I need to ream the holes to accommodate the new bolts as well as make everything even - something that has been done before on this application. The new size is still within the manufacturer tolerance and the difference (to the new size) is roughly 0.015mm. 



The question I have is: should I ream the wing and fuselage holes separately or as an assembly? In the case of the latter what would be the best way to align the bores other than making sure the old bolts go in freely?

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GeorgeCoy

Joined: 02 Dec 2010
Posts: 310

Posted: Thu Jan 27, 2022 9:17 am Post subject: Wing mount bore reaming

I believe that they had the fuselage and wings in jigs and reamed the holes

in that position. I saw this process on the Yak 52's at the factory.

 Probably your best option is to align the old holes as much as possible and

ream them together 

George

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