User Manual
39
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 16. Make three 1/2" [13mm] holes in the front of the 
dummy engine for removing and installing the 6-32 socket 
head cap screws.
❏
 17. Sand the inside of the cowl where the cowl ring contacts 
the cowl. Then, clean the area with a paper towel dampened 
with denatured alcohol.
❏
 18. Mix 1/2oz [14.7cc] of 30-minute epoxy. Apply the 
epoxy to the inside of the cowl where it contacts the cowl 
ring. Slide the cowl over the cowl ring, centering it over the 
drive washer on the engine and aligning it correctly on the 
fuselage. Use masking tape to hold it in position until the 
epoxy cures.
❏
 19. Unbolt and remove the cowl. Use epoxy to make a  llet 
between the cowl and the front edge of the plywood cowl 
ring. For a stronger  llet, mix milled  berglass with the epoxy.
❏
 20. Tape a piece of paper over the engine and muf er and 
draw the outline of the engine and muf er. Reinstall the cowl 
and transfer the outline to the bottom of the cowl.
❏
 21. Remove the cowl from the fuselage before cutting 
to prevent the  berglass dust from entering the carburetor. 
Use a high speed rotary tool with a sanding drum to cut the 
opening. Start with an undersized hole and slowly enlarge 
the opening while test- tting the cowl on the fuselage.
❏
 22. Make a 5/16" [8mm] hole in the cowl in front of the cowl 
ring for the vent fuel line. Also route the  ll fuel line through 
the hole in the side of the cowl ring. Insert the aluminum 
fuel plug in the  ll line. Reinstall the cowl. Apply a drop of 
threadlocker on the threads of the 6-32 x ¾" socket head 
cap screws before installing them.










