Advice on Andair fuel selector

Dorfie · #1 08-05-2014, 10:48 AM

Please help me out. I ordered the andair fuel selector for the RV10 while at Oshkosh, but asked them to delay shipping till I get some answers.
1. What is the reason for installing the fuel selector with extension? Will the standard (without extension) do?
2. What angle fittings did you use with the fuel selector? I assume it has to do with the way the fuel lines are routed?
3. Did you use the 3/8" connectors?
4. There is an option to install the "duplex" fuel selector, which allows for a fuel return line to the tank from which it drains fuel. The purpose of this is with the use electronic ignition (EFII). Any other reason to use the duplex? I do not plan on installing electronic fuel injection at this time, might be later though.
Thank you.
Johan

CharlieWaffles · #2 08-05-2014, 11:18 AM

1) The extension is required for the RV10. This is because there needs to be room under the tunnel cover to allow the SCAT tube to run to the rear seats.

2) The bottom/lower (output) is MALE. The other two fittings (input from tanks) are best with ELBOW. Basically you want all the fittings facing down and the elbows on the input allow you to position the fitting in the proper orientation.

3) Yes, the RV10 uses 3/8" fuel lines

4) No need for duplex unless you have a need for a purge/return line as dictated by special equipment. Stock engine setup does not require one.

rleffler · #3 08-05-2014, 11:21 AM

Quote:

Originally Posted by Dorfie

Please help me out. I ordered the andair fuel selector for the RV10 while at Oshkosh, but asked them to delay shipping till I get some answers.
1. What is the reason for installing the fuel selector with extension? Will the standard (without extension) do?
2. What angle fittings did you use with the fuel selector? I assume it has to do with the way the fuel lines are routed?
3. Did you use the 3/8" connectors?
4. There is an option to install the "duplex" fuel selector, which allows for a fuel return line to the tank from which it drains fuel. The purpose of this is with the use electronic ignition (EFII). Any other reason to use the duplex? I do not plan on installing electronic fuel injection at this time, might be later though.
Thank you.
Johan

1. The fuel valve mounts in the lower part of the tunnel and you need about 3-4" of extension to fuel selector on top of the tunnel. This change was done several years ago to better accommodate the heater scat tube to get by the fuel valve in the tunnel.

2/3. I don't recall. I would have to look it up. It may be documented on mykitlog site.

4. While it would work for the purge line, it isn't needed. Unless you want the capability to send purged fuel to either tank. My AFP purge line is just connected to a t-connector under the right seat. Set the fuel selector to the left tank and the hot fuel goes into the right tank. Much easier to install.

Neal@F14 · #4 08-05-2014, 12:16 PM

A duplex fuel valve would only be needed if you have one of the continuous flow return types of fuel injection systems that must have the return plumbed back to the same tank you're feeding from (e.g. ECI/AE or Continental injection system). The ECI system isn't available for the Lyc 540 engines, and I don't think anyone has yet hung a Cont IO-550 on an RV-10

blahphish · #5 08-05-2014, 02:52 PM

I installed my andair without using the extension because at the time I was looking the extension was like $300 and I said no to that. I verified with Deems Davis who did the same thing prior to me and had 300 good hours on his setup. I have 375 trouble free hours on mine now. I had to shape the fuel lines so that I could run the heater vent scat tube between them. I wrapped the fuel lines in firesleeve where the scat tube passes through.

rleffler · #6 08-05-2014, 03:50 PM

Quote:

Originally Posted by blahphish

I installed my andair without using the extension because at the time I was looking the extension was like $300 and I said no to that.

That is the original method of mounting the fuel selector. The andair extender was $100, but they've since reduce the price. I have about 9" of the extruded extender available, that I recently listed for sale on VAF, if somebody needs an extender. You only need 3-4".

I would strongly encourage folks to follow mounting the valve lower in the tunnel per the current plans. It will help minimize any potential vapor lock issues induce by the heater scat tubes.

There are other methods available to run the scat tube, but I think the plan version is the easiest to install.

9GT · #7 08-05-2014, 05:12 PM

I originally mounted my Andair valve like Brian did. I was not happy with the scat routing though and was also concerned with possible heat issues as Bob mentions. I ended up lowering the valve and fabricated my own extension. I still did not like that the scat could possibly vibrate or bounce around and rub against the extension rod so I fabricated a short 6" piece of 2" O.D. aluminum tube and squeezed it a little next to the extension for 1/8" clearance and mounted it to the inside of the tunnel with a couple 8-32 screws. I also sheathed all the fuel lines in the tunnel for heat issues.

flyingcharl · #8 08-06-2014, 02:41 PM

Quote:

Originally Posted by rleffler

That is the original method of mounting the fuel selector. The andair extender was $100, but they've since reduce the price. I have about 9" of the extruded extender available, that I recently listed for sale on VAF, if somebody needs an extender. You only need 3-4".

I would strongly encourage folks to follow mounting the valve lower in the tunnel per the current plans. It will help minimize any potential vapor lock issues induce by the heater scat tubes.

There are other methods available to run the scat tube, but I think the plan version is the easiest to install.

Bob I would like a piece of extender if you a prepared to send to me Australia just tell me how much with USPS and l we send send money first
Thanks
Charles Mifsud

Dorfie · #9 08-06-2014, 05:29 PM

Thanks for all the quick responses. Much appreciated.
Some more questions surfaced. I don't have the valve available yet, so I am trying to picture some smaller issues.
1. Did you re-mount the selector mounting bracket (F-1048C) in a lower position in the tunnel? Did you manufacture a new one and kept the original in place?
2. How did you mount the upper part of the fuel selector (cockpit visible part) to tunnel top? I am installing the aerosport center console. Does the selector lever and indicator mount to the aerosport section only or in some other manner that requires the F-1048C to stay in top part of tunnel?
3. Does the Andair valve fit the F-1048C as is?
Thanks.
Johan

Dorfie · #10 08-06-2014, 05:43 PM

[quote=rleffler;904360]I would strongly encourage folks to follow mounting the valve lower in the tunnel per the current plans. It will help minimize any potential vapor lock issues induce by the heater scat tubes.
QUOTE]

Bob,
Which plans are you referring to. My plans show the high mounted stock brass Vans selector only.
Thanks.
Johan