GREAT PLANES Little Toni ARF, Instruction Manual, Page: 13 / 28

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7. Install the tail wheel onto the tail wheel wire. Lock it in
place with a 3/32" [2.4mm] wheel collar and a 4-40 set
screw with a drop of threadlocker.
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1. Use a fine-point felt-tip pen to extend the crossing lines
on the firewall. Cut out the engine mounting pattern on
page 27 of this manual. Tape it on the firewall aligning the
lines on the pattern with the lines on the firewall.
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2. Use a 3/16" [4.8mm] bit to drill through the firewall at
the marks on the engine mounting pattern.
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3. Install four 8-32 blind nuts into the backside of the
firewall. We have included a 4-40 x 12" [305mm] rod
threaded on one end to assist you with this process. Screw
a 4-40 nut onto the threaded end of the rod. Slide a blind nut
(flat side of the blind nut toward the nut) onto the rod. Insert
the wire through the inside of the fuselage, through one of
the holes you drilled in the firewall. Pull on the wire until the
blind nut pulls into the firewall. Remove the wire. Carefully
screw an 8-32 x 1" [25mm] socket head cap screw with a #8
flat washer into the blind nut. Tighten the bolt and washer
against the firewall until the blind nut is pulled firmly against
the firewall. Remove the socket head cap screw. Repeat this
procedure for the remaining three blind nuts.
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4. Install the engine mount to the firewall using four each
8-32 x 1-1/4" [32mm] socket head cap screws, #8 flat
washers and #8 lock washers. When installing the mount,
use your engine to determine the spacing needed for the
mounting rails.
The following engine mounting instructions apply to both the
two-stroke and four-stroke engines. As mentioned earlier in
the instructions, the four-stroke engine leaves much more of
the cowl intact than will the two-stroke. We have included a
picture of a two-stroke installation that is most likely the
“worst case scenario” because of the very large muffler. You
will notice that to install this muffler we had to cut away a
portion of the firewall. We did test fly the plane in this
configuration and have determined it does not affect the
structural integrity. Should you have to cut a portion of the
fuselage/ firewall to clear your muffler, you may need to
insert an additional hardwood block (not included) inside of
the fuselage for mounting the cowl. You may also wish to
build a box inside of the fuselage to prevent fuel residue
from getting inside the fuselage.
Install the Engine, Fuel Tank
and Throttle Servo
13