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Hangar 9 F4U-1D Corsair 50 ARF
7. The lines drawn on the cowl mounting blocks in step
5 are used in aligning the mounting holes of the cowl,
centering them on the blocks. Use a felt-tipped pen to mark
the locations for the cowl mounting screws on the blocks.
8. Use a drill and 5/64-inch (2mm) drill bit to drill the
holes for the cowl mounting screws.
9. Use a #1 Phillips screwdriver to run a 3mm x 15mm
black washer head screw in the four mounting blocks. Make
sure to remove the screw before proceeding to the next step.
10. Apply 2–3 drops of thin CA in each hole drilled. This
will harden the surrounding wood, making the screws more
secure when installed.
Important
: Do not use a CA accelerator. Using
an accelerator will not allow the CA to soak into
the fibers of the wood, hardening the blocks.
11. Secure the cowl to the fuselage using four 3mm
x 15mm black washer head screws. Use a #1 Phillips
screwdriver to tighten the screws. Carefully position
the dummy engine so it is in perfect alignment with the
carburetor. You may need to trim the opening for the
carburetor slightly.
12. Carefully remove the cowl. Do not disturb the
positioning of the dummy engine. Mark the position of the
dummy engine inside the cowl so it can be returned to its
original location. Remove the dummy engine and use a
flexible silicone adhesive to secure the dummy engine in the
cowling.
13. (Glow/Gas Only) Attach the muffler to the engine
using the hardware provided with the engine. The nut from
the muffler will fit in the notch in the fuselage as shown.
