
22
Hangar 9 RV-8 Assembly Manual
Step 11
Trim the throttle pushrod tube as close to the firewall as
possible using side cutters. This is necessary as the throttle arm
is very close to the firewall when the carburetor is fully closed.
Step 12
Use the holes in the engine mount that will position the drive
washer of the engine 4
3
/
8
inches (111mm) from the firewall
as shown. Tighten the screws that attach the mount to the
firewall after making sure they have threadlock on them to
keep them from vibrating loose.
Step 13
Slide the pushrod into the pushrod tube. Position the
engine between the mounts, then secure its position using
four 4-40 x 1-inch socket head screws, four #4 washers
and four 4-40 locknuts. Place the washers on the bottom
side of the mount between the mount and lock nuts. Use
a 1/4-inch nut driver or box wrench to hold the locknuts
while tightening the socket head screws with a 3/32-inch
hex wrench or ball driver.
Section 7:
Fuel Tank installation and Throttle
Linkage Connection
Required Parts
Fuselage
Pushrod connector
2mm washer
E-clip
Transmitter
3mm x 3mm setscrew
Fuel tank
Plywood tank support
Engine muffler
Fuel dot (optional)
Tools and Adhesives
Phillips screwdriver: #2
Side cutters
Pin drill
Drill bit: 5/64-inch (2mm)
Foam rubber, 1/4-inch (6mm) Threadlock
Medium CA
Hex wrench or ball driver: 1.5mm
Step 1
Use a pin drill and 5/64-inch (2mm) drill bit to enlarge the
hole that is 1/2-inch (13mm) from the center of the throttle
servo arm.