Carl Goldberg Products EXTRA 300, Instruction Manual

Page: 39 / 44

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2.
■ ■
Cut the front piece along the scribe line around the
circumference.
■ ■
Cut out the two air intake openings on each side of the
spinner ring along with the bottom opening and the
prop shaft opening. Use a small round file to lean up
the edges of each intake.
3.
■ ■
Glue the front piece onto one of the sides.
4.
■ ■
Glue the joiner strip to the top and bottom seam. Leave
half of the strip width exposed to allow a gluing surface
for the other cowl half.
5.
■ ■
Glue the remaining half to the front piece and onto the
joining strip. Fit all seams as tightly as possible. This
will eliminate excessive filling and sanding.
6.
■ ■
Fill the seams with filler and sand smooth.
7.
■ ■
Paint the cowl with a good quality, fuel resistant paint.
8.
■ ■
Permanently install the motor mounts to the firewall
using four 6-32 x 1-1/4” socket head screws with
washers.
NOTE: If you are not using the engine spacers, you must cut
the screws so they do not interfere with the fuel tank.
Don’t forget right thrust.
■ ■
Screw the engine to the mounts using four #6 x 3/4”
screws with washers.
9.
■ ■
Slide the cowl on over the engine and install the spinner
backplate on the prop-shaft.
■ ■
Allow a 1/16” space between the backplate and the
cowl. Locate the cowl off the spinner backplate and
attach to the fuselage using four 4-40 x 3/8” screws and
washers. See plan for locations.
NOTE: If you prefer to install fiberglass, rather than plastic
parts, these may be obtained directly from Carl
Goldberg Products. See ordering information on
the Parts List.