Hangar 9 P-40B Warhawk 50 ARF Assembly Manual page 34

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8a. (Two-stroke) Slide the tube into the fuselage. Position
the tube so 1 / inches (35mm) extends forward of the
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firewall. Use medium CA to glue the tube in the fuselage.

8b. (Four-stroke) Slide the tube into the fuselage. Position
the tube flush with the firewall. Use medium CA to glue the
tube in the fuselage.
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
9a. (Two-stroke) Use a hobby knife with a #11 blade to
cut a 1/4 inch (6mm) piece of safety tubing. Slide the safety
tubing over the nylon clevis. Thread the clevis on the 1
inch (290mm) pushrod and attach it to the outside hole of
the carburetor arm. Use side cutters to remove ONLY the
Z-bend from the pushrod wire.

9b. (Four-stroke throttle pushrod) When installing a four-
stroke engine, the Z-bend in the pushrod will connect to the
carburetor arm. Remove and rotate the carburetor as shown
so the carburetor arm is on the side shown.

10. Attach the engine to the nylon engine mount using
four 4-40 x 1-inch socket head cap screws, four #4 washers
/ and four 4-40 lock nuts. Place the washer on the bolt before
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passing it through the engine mounting lug. The forward
bolt is located in the hole closest to the end of the mount,
while the rear bolt is in the first oval hole. Use a 3/32-inch
hex wrench and 1/4-inch nut driver to tighten the hardware.
Check that the holes in the mount set the drive washer
4 / -inches (124.5mm) forward of the firewall as shown.
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Use a 7/64-inch hex wrench to tighten the screws securing
the mount to the firewall.
Hangar 9 P-40B Warhawk 50 ARF