RV-8 70cc FLS Instructions
40
⃞
2.
The engine mounting locations for the DA-70 is laser-etched into the firewall for your
convenience. If using a different mounting pattern, the “+” represents the engine
crankshaft. Use a 1/8-inch drill bit and drill to create a pilot hole in the center of the four
bolt hole etchings in the firewall. Use a 5/16-inch drill bit to enlarge these holes. Verify
that the hole is large enough to accommodate the blind nuts which will be installed in
the step 4.
⃞
3.
Using CA, install the (4) 3mm plywood washers.
⃞
4.
Use a
¼
-20 x 1-1/2-inch screw,
¼
-inch flat washer, and 20mm standoff to pull the blind
nut into the back side of the firewall. Once fully seated, you may apply some medium CA
to help secure the blind nut. Ensure that you don’t get any adhesive on the threads of the
blind nut. Let the CA fully cure before moving to the next step.
⃞
5.
Mount the engine (without the exhaust) to the firewall using (4) 20mm engine standoffs,
(4)
¼
-20 x 1-1/2-inch socket head cap screws and (4)
¼
-inch flat washers. Be sure to apply
blue thread lock to the motor mount screws. The order of components is as follows:
o
¼
-20 x 1-1/2-inch Socket Head Cap Screw
o
¼
-inch flat washer
o
Engine
o
20mm Engine Standoffs
o
Firewall
o
¼
-20 Blind Nut
