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COWL ASSEMBLY
The length of cowl should be 3” from the
very front to the very back. Place a sheet
of 180 grit sandpaper on a flat surface and
sand the back edge of the scowl until it is
flat, when placed on a flat surface it should
be in contact all the way around the cowl.
To open up the air intake, drill a series if 1/8”
holes around the perimeter of the opening
as close together as you can. Then clip out
the bridges between the holes and remove
the center section.
Locate the cowl ring (CR) and test fit it to
the cowl. It will be installed at the very back
of the cowl with Epoxy. When satisfied with
the fit, place a piece of parchment paper
on the bench and place the cowl ring on
it. Butter the inside edge of the cowl with a
liberal bead of Epoxy and install it onto the
cowl ring. Place this assembly flat on the
bench and use a pencil to make sure the
cowl ring is pushed down flat against the
building board and let it cure. Use some
scrap wood pressed against the sides to
make sure the cowl is in contact with the
cowl ring. The sides should be flat.
A series of 1/8” holes is drilled along the perimeter of the
opening and the bridges between the holes severed with a
knife or side cutters. Then the opening is trimmed and sanded
to the contour of the opening.
Place a 1/8” x 1/4” magnet on each of the
two magnets in the firewall. Let them snap
into place on the existing magnets and
then mark the front of each magnet with a
Sharpie pen or piece of tape.
Remove the TOP magnet and glue it into
the TOP hole in the cowl ring. The inked
side must face forward.
Remove the bottom magnet and install and
glue it into the bottom hole in the cowl ring.
Round over both ends of a 1/8” dowel and
then cut them off 1/4” long. Glue these
into the holes in the firewall (F1) with the
rounded and facing forward.
This concludes the assembly of the cowl. Before
painting the cowl, use some 120 grit sandpaper
to give it a scuff coat for better paint adhesion.
The cowl should snap into position on the front
of the model with no gap and stay securely until
pulled off.
