Great Planes P-47 Thunderbolt GP/EP ARF - GPMA1479 - Manual (Page 13)

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o 6. Using four 3 x 22mm [7/8"] SHCS, four 3mm flat
washers, and four 3mm lock washers, attach the engine
mount inverted to the firewall. Be sure to use some thread
locker on the SHCS threads.
o 7. Position the front of the engine drive washer 3-1/4"
[83mm] from the firewall. Mark the location of the engine
mount holes onto the mount rails using a Dead Center Hole
Locator. Remove the engine from the mount and use a 3mm
tap and drill set to create threads in the four mounting holes.
Attach the engine to the mount using four 3x20mm [13/16"]
SHCS, four 3mm flat washers, and four 3mm lock washers.
o 4. Fit the stopper assembly into the tank with the vent line
pointing toward the top of the tank, but not touching. The fuel
tubing and clunk (fuel pickup) on the carb line should almost
reach the back of the tank but not touch. The clunk must be
able to move freely inside the tank when assembled. Adjust
the length of the fuel tubing accordingly. If you wish to use
the fill line to drain the tank, bend the metal tube toward the
bottom of the tank and attach a length of fuel tubing to it, as
shown. When satisfied, tighten the 3x25mm [1"] screw in the
stopper to secure it in place (do not over-tighten).
o 5. Insert the tank into the fuselage with the correct side
facing up. The neck of the tank should pass through the hole in
the firewall. Attach a 6" [152mm] piece of fuel line to the metal
tubes. It is a good idea to mark each of the lines using some
tape and a marker. Finish the tank installation by securing the
tank to the firewall using a rubber band as shown.