Top Flite TOPA0155 - Manual (Page 52)

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7. Drill the remaining five holes and enlarge the
openings and install the screws.
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8. Where necessary, sand the fuse sheeting even
with the cowl. Remove the cowl and harden the holes
in the cowl mounting blocks with thin CA. Allow to
fully harden before mounting the cowl.
Finish the engine compartment
We’re just about done with the front end of the fuse and
the cowl, but first the muffler, fuel filler, etc. must be
mounted and accompanying holes cut into the cowl.
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1. If using a two-stroke engine with a Top Flite in-
cowl muffler, mount the header to the engine and
connect it to the muffler with a long silicone
connector. Aerotrend 3/4" [19mm] inside diameter
silicone tubing was used on this model (AERG2220).
Mount the muffler to former F2 using the screws that
came with the muffler.
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2. Trim the cowl to accommodate the muffler. A
Dremel sanding drum works well for this.
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3. Make a mount for the fuel filler valve from a
Great Planes Handy Mounts set (GPMQ6000), or
from leftover 1/8" [3.2mm] plywood. Mount the fuel
filler valve (GPMQ4160, not included) to the mount.
Use 30-minute epoxy to glue the mount in a location
that will be accessible outside the fuse. Some
modelers prefer to mount the fuel filler valve in an
inconspicuous location such as near the bottom of
the fuse, but the filler valve can be difficult to reach
in this location.
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4. Cut holes in the cowl for the fuel filler valve,
needle valve, glow plug igniter, etc. This can be done
by making templates. First cut a hole in a sheet of
paper and tape it to the fuse with the hole aligned
over the fuel filler valve.
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5. Mount the cowl and transfer the hole in the
template to the cowl.
❏
6. Cut the hole in the cowl. Mount the cowl to
check the alignment of the hole over the fuel filler
valve. Make adjustments where necessary.
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