Seagull Models SEA12, Инструкция по сборке

Страница: 16 / 22

Trim and cut.
COWLING.
1) Slide the fiberglass cowl over the en-
gine and line up the back edge of the cowl with
the marks you made on the fuselage
Trim and cut.
4) Remove the cowl. Using a 5/64” drill
bit, enlarge the holes in only the four cowl
blocks.
5) Using a 1/8” drill bit. Enlarging the holes
through the cowl will prevent the fiberglass
from splitting when the mounting screws are
installed.
6) Slide the cowl back over the engine and
secure it in place using four 3mm x 12mm
wood screws. See picture below.
Because of the diameter of the cowl, it
may be necessary to use a needle valve ex-
tension for the high speed needle valve. Make
this out of sufficient length 1.5mm wire and in-
stall it into the end of the needle valve. Se-
cure the wire in place by tightening the set
screw in the side of the needle valve.
7) Install the muffler and muffler extension
onto the engine and make the cutout in the
cowl for muffler clearance. Connect the fuel
and pressure lines to the carburetor, muffler
and fuel filler valve.
2) While keeping the back edge of the
cowl flush with the marks, align the front of
the cowl with the crankshaft of the engine. The
front of the cowl should be positioned so the
crankshaft is in the middle of the cowl open-
ing. Hold the cowl firmly in place using pieces
of masking tape.
3) While holding the cowl firmly in posi-
tion, drill four 1/16” pilot holes through both the
cowl and through the mounting blocks.
16