This is the new ECi Forward Facing Cold Air Induction and
Fuel Injection
System Installation on my RV6
New ECI Rear Accessories Housing For FI System
ECI Fuel Injection Throttle Body
Fuel Pump With Mixture Control Bracket
Fuel Tanks removed to install return lines in fuel tank outboard rib.
Hole in the end fuel tank rib. Fittings for
return fuel line. Fitting with pro seal applied in outboard tank rib.
I made 4, 90 degree angle brackets from .060 aluminum with holes drilled and
plastic bushings installed and secured them, using pro seal, to the back of the
tanks. I then installed the fuel return line through the bushings. This
installation fits the RV6 very well and it took about 5 hours for me to
complete.
Fuel Selector Panel
Return line Ck. valve
Fuel Injection Throttle Body Air Filter With Alternate Air
I designed this air intake with an alternate air valve which
is operated from the cockpit and takes air from inside the engine cowling if the
air filter becomes blocked. A K&N cone shaped air filter fits inside the
fiberglass cone to provide filtered air. The air intake and valve is machined from aluminum
with an arm welded in a position to connect a cable from the cockpit to operate
the valve. This design requires an air inlet through the front of the engine
cowling and performance is improved with RAM AIR effect.
Van's New Locking Fuel Cap
The quality of this gas cap is superb and it is very easy to install. Just pro seal it
in per the instructions and clean carefully with lacquer thinner.
Installing the New ECI Fuel
Injection System Return Lines on the RV6
This is the procedure I used on my RV6
-
Ground the airplane.
- Remove the fuel tank drain plugs and drain the fuel into
a fuel container.
- Remove the fuel tank.
- Measure and mark the outboard fuel tank rib 6 ¼ inches
forward of fuel tank back wall and 5/8 inch down from top fuel tank skin.
See photo #1. This is the spot to drill a 7/16 inch hole to install the AN
833-4D bulkhead fitting.
- Drill the 7/16 inch hole at the mark. As you drill, use
a vacuum hose inserted into the tank to catch drill debris. Some debris may
still go into the tank. Tip the tank and vacuum until all of the debris have
been removed.
- Debur the outside and inside of the tank around the
newly drilled 7/16” hole then vacuum out the tank again making sure there is
no debris left inside the tank.
- Install the AN 833-4D using an AN 960-716 washer
followed by a AN 924-4D nut shown in Photo #2 . Coat all
parts with pro seal (from Van’s) before assembly. Coat parts in the area
that contacts the tank rib. Also coat the nut, washer and the threads
of the AN 833-4D but do not get proseal in the end and plug the hole in the
AN833-4D. When you tighten the nut, proseal will ooze out and seal around the
AN833-4D. NOTE: Use your fingers to install the washer
and nut through the fuel tank filler hole. Tighten the nut by holding it with
your fingers while twisting the AN 833 with the other hand until tight and in
the correct position as shown in Photo #6. USE
RUBBER GLOVES.
- Fabricate four 90 degree brackets from .060 aluminum.
The brackets should be 1x3 inches long with the 90 degree bend ¾ “ from one
end. See Photo #4. Drill a hole for a ¼ inch ID plastic bushing in
each bracket on the short side of the angle. Drill 2 holes in the longer end
of the bracket to let the pro seal ooze out to help hold the bracket in place.
See Photo #7. With the tank leading edge down, place the four brackets on the
back of the tank using a generous amount of pro seal. Make sure the short side
of the angle faces aft. The spacing should be as shown in Photo #3.
- Let the pro seal cure then install the ¼ “ ID plastic
bushings into the hole in the bracket. Install the ¼ inch soft aluminum
tubing though the bushings. Install the AN 818-4D Nut and the AN819-4D Sleeve
on both ends of the ¼” tube running along the back of the tank. Install the
AN 815-4D Union on the end of the ¼” tube that is on the inboard side of the
tank and install the AN 821-4D Elbow on the out board side of the tank. See
Photo #6 & Photo#3.
- Install a AN 818-4D Nut and a AN 819-4D Sleeve on each
end of a short ¼” tube to run from the AN 833-4D Bulkhead fitting mounted to
the outboard side of the tank to the AN 821-4D Elbow at the outboard aft
corner of the tank. One end of the AN 821-4D Elbow will be installed to the
short tube and the other end will be installed to the long tube running along
the aft side of the tank. See Photo #8. Be sure the fuel line and
fittings do not touch the tank at any point. Check to be sure all fittings are
tight. Apply
some pro seal on the fuel line and the plastic bushings on both sides to make
it stable. See Photo #7.
- Repeat the processes for the right fuel tank.
- Install fuel return line from the fuel selector valve to
the engine driven fuel pump. Install fuel return line from fuel selector valve
through the side of the fuse to the fuel return line on the aft side of the
each tank.
- Install fuel tanks on the wings. Connect all lines.
NOTE: RV7, 8, 9 have Z brackets
attached to the rear of the fuel tank that can be drilled to install the fuel
return line to each fuel tank.
Photo
#1
Photo
#2
Photo
#3
Left Fuel Tank
Photo
#4
90 Degree Angle Bracket
Photo
#5
AN821-4D
AN815-4D
Photo #6
Outboard Left Fuel Tank
Photo
#7
Rear Left Fuel Tank
Fuel Return Line Bracket
Photo
#8
Left Fuel Tank
.
Bob Snedaker at Fairing-Etc. has
taken over the RV Wheel Pant Brackets.
