Great Planes U-Can-Do SF EP/GP .80 ARF - GPMA1272 - Manual (Page 17)

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4. Insert the pushrod tube through the hole you drilled in
the fi rewall and into the notch in the fuel tank support. The
pushrod tube should stick out past the fi rewall approximately
1/4" [6.4mm]. Glue the tube to the fi rewall and into the notch
with CA glue. If you have positioned the pushrod in a location
different than what is shown in the picture, you may need to
modify the fuel tank support to accommodate the pushrod
tube. With glue in hand, fi ll the perforated cutout lines for the
cooling hole and ESC tray slots in the fi rewall. These cutouts
are for the brushless installation only and should be glued in
place for a glow engine setup.
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5. Grind or cut off a portion of one of the 6-32 blind nuts
as shown.
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6. Drill 11/64" [4.4mm] holes at the angled mounting pattern
on the fi rewall. For accuracy and to avoid tearing the wood
we suggest starting with a 1/16" [1.6mm] bit and working
up in bit size. Install four 6-32 blind nuts using a 6-32 x 3/4"
[19mm] machine screw and a #6 fl at washer to draw them
tight into the holes. The blind nut that you cut in step 5 should
go in the top hole.