Chris,
The part you have was a replacement for an earlier method that had some
smooth ended rod-end inserted into a smooth hole in the link and the drilling
was necessary to hold it all together. BUT, it was extremely hard to
properly drill the hole with hand tools (Lancair assembly feature in the olden
days) - thus, Lancair came out with a new link that was threaded and had
heli-coils inserted to strengthen the holding power of the link to rod-end
connection held in place with a lock nut. The directions pre-dated
this later improvement. Unfortunately the drilling destroyed the
heli-coil. One possibility is to obtain a new set of helicoils and the
tool to insert them and ignore the hole already drilled. There are other
possibilities but I leave that to your experimental imagination.
The pic below is what the newer style would look like, sans
hole, after a few flights through bugs and stuff.
Good Luck,
Scott Krueger
In a message dated 6/1/2014 8:50:01 A.M. Central Daylight Time,
marv@lancair.net writes:
Posted for
"Christopher Skelt" <cskelt@earthlink.net>:
>Fellow
LNC2 builders,
>Figure 5-6 on page 5-13 (Rev 0 11-1-91) of the 320 FB
Manual shows the
>outboard part of the over-center linkage with an
AN3-7A through GM03 and the
>rod end—presumably to prevent it from
loosening. I just drilled as shown in
>the drawing and
removed the rod end to clean out the swarf. This was a bad
>idea as the linkage has a steel thread insert that was broken up by
drilling.
> See the attached photos and the diagram from the
manual.
>
> What have other builders done here? I have
a photo from some years back of
>an anonymous LNC2 with no bolt through
the rod end.
> Do you really need this additional measure to prevent
the rod end from
>rotating?
> The Kit Components
website lists “LINK MAIN GEAR BOTTOM LONG GM03B.” Is
>this
the right part?
>
> Regards, Chris.
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