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Mount the engine – Great Planes Tracer 46 Kit - GPMA0400 User Manual

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allowing it to tilt to either side. When satisfied with the
alignment of the fin, glue it in place with thin CA. Hint: Proper
alignment of your fin to your stab is critical to proper flight
performance, so take your time to be sure it is just right.

6. Use medium CA to glue the fin fillets in place.

7. Use a small amount of filler to fill the gap at the front

of the fin.

1. Cut the “spreader bars” from the supplied Great Planes

engine mount, then use a hobby knife to remove any
flashing leftover from the molding process so that the halves
fit together well.

2. Temporarily attach the engine mount to the firewall

with four 6-32 x 1" bolts and #6 flat washers. Do not tighten
the screws all the way, because you still need to adjust
the mount.

3. Place the engine on the mount and slide the halves in

or out until the engine fits properly. Position the mount so
the molded-in “tick marks” are equally spaced from the
horizontal centerline you drew on the firewall. When the
engine mount is adjusted and positioned, tighten the
mounting screws.

Note: If you are using a larger engine than the .46 it may be
necessary to sand the left fuse side flush with the firewall,
so that the mount fits.

4. Position the engine on the mount so the drive washer

(or the back of the spinner) is 5" away from the firewall and
clamp in place.

5. Use the Great Planes Dead Center

Engine Mount

Hole Locator (GPMR8130) to mark the locations of the
bolt holes. Remove the engine from the mount and drill four
7/64" holes. Tap the four holes with a 6-32 tap. Mount the
engine with the four 6-32 x 1" socket head bolts.

Mount the Engine

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