Install The Pushrod Tubes - GREAT PLANES Easy Sport 40 Instruction Manual

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3. Fit the two halves of the engine mount together. Use
four #6 flat washers and four 6-32 x 1" [25.4mm] phillips
head screws to attach the engine mount to the firewall.
Blind nuts have already been installed in the firewall for this
purpose. Don't tighten the screws completely yet, as the
mount will need to be adjusted to fit the engine.
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4. Test fit the engine to the mount. Adjust the width of
the mounting rails to accommodate the engine without
being too tight or too loose. Tighten the mount screws so
that you can mark the engine screw holes without allowing
the rails to move. When you tighten the screws, slide the
mount as close to the right side of the fuselage as you can.
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5. Position the engine so that the drive washer is
4-1/2" [114mm] from the firewall. Using one of the 17-1/2"
[444mm] push rods, sharpen the non-threaded end using a
file or sandpaper. Use this sharpened wire to scribe the four
mounting holes onto the rails. Use a 7/64" [2.8mm] drill bit to
drill pilot holes through the rails for the #6 sheet metal screws.
#6 x 3/4" [19mm] Sheet Metal Screw (4)
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6. Attach the engine to the rails using four #6 x 3/4"
[19mm] sheet metal screws.

Install the Pushrod Tubes

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1. Locate the pushrod exit slot under the covering on the
tail section of the fuselage by lightly pressing with your
fingers. The slot should be located 4" [102mm] from the
rear the fuselage and 3/4" [19mm] from the bottom of the
fuselage. Trim the covering to provide access to the
pushrod exit.
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2. Trim one of the pushrod tubes to 12" [305mm]. After
roughening the tube with 220-grit sand paper, install the
tube into the upper right hole in the firewall. This will be
used for the throttle pushrod. Leave about 1/4" [6.4mm] of
the tube exposed in front of the firewall. Glue the pushrod
tube to both sides of the firewall using medium CA.
Note: Depending on the engine you use, the location of the
pushrod holes may vary.
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3. Trim the remaining pushrod tube to 13-1/2" for use as
the nose wheel pushrod tube. After roughening the tube
with 220-grit sand paper, install the tube into the lower left
hole in the firewall. This tube should be installed flush with
the front of the firewall. Glue the pushrod tube in place to
the former at the LE of the wing.
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