Fuel tank installation – Great Planes Z526 Zlin Akrobat GP/EP ARF - GPMA1024 User Manual
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Fuel Tank Installation
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1 . Locate the parts shown for the fuel tank . Assemble the
stopper as shown . Install the two shorter aluminum tubes on
the bottom and the longer tube on the top . Bend the longer
tube up as shown . This will be used as a vent line, so you’ll
need to bend it up far enough to reach the top of the tank .
Install the forward and rear plates and the included screw .
Do not tighten the screw yet .
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2 . Cut two pieces of fuel line (GPMQ4131) long enough
to achieve the length shown in the photo above . This will
position the two fuel clunks so that they are 3/8" [9 .5mm]
from the back of the tank . Note: It is important to allow
enough space for the clunk to move freely . If the clunk binds
it can get stuck and draw air, so please be careful .
3/8" [9.5mm]
VENT LINE
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3 . Carefully install the stopper into the tank so that the
vent line points up to the top of the tank . You may need to
adjust the bend of the line so it reaches the top of the tank .
A small amount of clearance is desirable . When the stopper
is fully installed, tighten the screw to seal the stopper . Note:
Be careful when installing the stopper . Putting too much
pressure on the fuel line can cause the aluminum tube to cut
a pinhole in the silicone line inside the tank . This will result in
a poor running engine and possibly a dead-stick landing .
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4 . Locate the plastic pushrod tube supplied with this kit .
Cut a section 8" [203mm] long . Sand the last 1/2" [13mm] of
the tube’s outer surface . This helps it to stick to the firewall .
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5 . Based on the location of the throttle arm on your particular
engine, choose a throttle pushrod hole . Fit this in the firewall
hole you chose and slide it back until 1/8" [3 .2mm] of the tube
protrudes out past the front of the firewall . Don’t worry about
an exact fit inside the fuselage at this time . You will trim the
tube to the proper length after the throttle servo is installed .
Use 5-minute epoxy to glue the tube to the firewall .