20
q
2) When satisfied with the fit, use 220 grit sand-
paper and remove the paint from where the mounting
blocks will be glued in place.
q
3) Glue the four mounting blocks in place using
Kwik Bond 5 Minute Epoxy. Allow the epoxy to
fully cure before proceeding.
MOUNTING THE COWL
q
4) Slide the cowling over the fuselage as far as
possible. Mark where the cowl comes in contact with
the nose gear strut. Remove the cowl and cut out the
cowl, about 1” forward, to clear the strut.
q
5) Slide the cowl back into place and install the
propeller onto the engine. Align the cowl so the
molded spinner ring is evenly spaced around the
engine's drive washer.
q
6) Temporarily hold the cowling in place using
pieces of masking tape. Using a pencil, place guide
marks on the fuselage directly behind the trailing edge
of the cowl. Place the marks in the area behind the
cowl mounting blocks.
The cowl in slightly oversized. For the cowl to
fit properly you must squeeze the cowl at the
locations of the mounting blocks.
q
7) Remove the cowl and measure the distances
from the guide marks on the fuselage to the center of
the cowl mounting blocks.
q
8) Slide the cowl back into position and hold it
in place using pieces of masking tape. Use the guide
marks and measurements to position the holes on the
cowl for the four mounting screws.
q
9) Drill 5/64” holes into the cowl and through
the hardwood blocks at the mounting hole positions.
Remove the cowl and enlarge the holes through only
the cowl using a 1/8” drill bit. Secure the cowl in
place using the four 3mm x 12mm wood screws and
four 3mm washers. See photo # 31 below.
Photo # 31
q
10) Cut the holes in the cowl to access the high
and low speed needle valves (use a needle valve ex-
tension made out of scrap pushrod material to access
the high speed needle valve from outside the cowl)
and cylinder head clearance. Remove the cowl and
install the muffler onto the engine. Make the cutout
in the cowl for muffler clearance and reinstall the cowl
to check the fit. A Dremel Tool with a rotary sanding
bit works best to make these cutouts.
q
11) Remove the cowl. Using a 5/16” drill bit,
drill a hole through the cowl to accept the nylon fuel
filler housing. We suggest drilling the hole on the
bottom of the cowl so the housing is out of the way.
q
12) Push the fuel filler housing into the hole and
snap the nylon snap ring over the housing from the
inside of the cowl. See figure # 19 below.
INSTALLING THE FUEL FILLER
Figure # 19
q
13) Cut to length and attach the vent line to the
muffler pressure nipple and fuel pick-up line to the
fuel nipple on the carburetor (if using a standard car-
buretor engine) or on the fuel nipple on the needle
valve assembly (if using an engine equipped with a
remote mounted needle valve).
q
14) Slide the fuel filler line through the fuel filler
housing mounted in the cowl. Leave about 1” of line
exiting the outside of the cowl and cut off the remainder.
Attach the nylon fuel filler plug to the fuel line and push
the plug into the housing. Refer to figure # 19.
To fill the fuel tank you must first completely
close the needle valve on the engine. Pull the
fuel filler line out the housing by gently grasping the
fuel filler plug. Remove the vent line from the muf-
fler and fill through the fuel filler line. When the
tank is full, reattach the vent line to the muffler and
install the fuel filler plug into the filler line and push
it back into the housing to keep it in place. Reopen
the needle valve to the original setting.
INSTALLING THE FUEL LINES
SNAP
RING
COWL
PLUG
PUSH IN
3
HOUSING
FUEL
TUBING
1
2
Mounting
Screws
Drive
Washer
Содержание AK-18
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