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  #1  
Old 04-16-2017, 09:56 AM
albertaflyer albertaflyer is offline
 
Join Date: Oct 2010
Location: Red Deer, Alberta
Posts: 67
Default SDS EFII Install

Hi,
I have a short line (5") from pressure regulator to bulkhead fitting. Just wondering best procedure to connect line? Flex line, hard line straight in (little bit of offset not much), or a loop with hard line? Expansion/contraction an issue on such a short line? I've seen others do it but I want it done right. Not sure on what's an acceptable practice with aircraft fuel line. Btw it's a 3/8" line.
Thanks
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  #2  
Old 04-16-2017, 11:58 AM
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Toobuilder Toobuilder is offline
 
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Can you post a picture? Line use will depend an awful lot on the amount of potential relative movement between the two connection points.
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  #3  
Old 04-17-2017, 09:08 PM
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stringfellow stringfellow is offline
 
Join Date: Mar 2015
Location: Aurora
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Here's the example from the Fly EFII installation manual. Looks pretty clean to me.

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  #4  
Old 04-18-2017, 01:31 PM
tailcreek_flyer tailcreek_flyer is offline
 
Join Date: Oct 2008
Location: Stettler Alberta
Posts: 58
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Hi Tony,
I used fuel injection rated rubber hose from my rail pressure regulator to a bulkhead fitting on the fire wall. I then put a fire proof sleeve on the hose. I have about half a loop of slack between the engine and fire wall. This line doesn't run at injection pressure and it just loops back to the head tank in my case. No issues thus far. I'd stay away from hard piping it in.
This is on an SDS system on my CH701. My RV9A uses the Eagle EFI.
Regards
Cam
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C-FCAM CH701 Ram SOOB
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  #5  
Old 04-18-2017, 02:57 PM
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bret bret is offline
 
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Location: Gardnerville Nv.
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My fuel lines are the carbon impregnated PTFE SS and coated type with fire sleeve protection installed, filters, pumps and regulator are on the engine side of the firewall. all components have heat shielding and the two firewall bulkhead fittings are steel. Vacuum lines to pressure regulator and MAPs are also fire sleeved.
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  #6  
Old 04-20-2017, 10:08 PM
albertaflyer albertaflyer is offline
 
Join Date: Oct 2010
Location: Red Deer, Alberta
Posts: 67
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Thanks for the responses! I think I'm going to use a stainless teflon lined hose. Just don't like the idea of having an almost straight solid line connecting two things that can move individually... maybe not much but they can. What are others using for filters. Seems to be different ideas as to what is acceptable and what is overkill. Thanks again! I can't post pictures as I have no acct. to post pictures to.
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  #7  
Old 05-07-2017, 06:44 AM
madhun madhun is offline
 
Join Date: Jun 2010
Location: Buderim, Queensland Australia
Posts: 128
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Quote:
Originally Posted by tailcreek_flyer View Post
Hi Tony,
I used fuel injection rated rubber hose from my rail pressure regulator to a bulkhead fitting on the fire wall. I then put a fire proof sleeve on the hose. I have about half a loop of slack between the engine and fire wall. This line doesn't run at injection pressure and it just loops back to the head tank in my case. No issues thus far. I'd stay away from hard piping it in.
This is on an SDS system on my CH701. My RV9A uses the Eagle EFI.
Regards
Cam
C-FTLL RV9A IO360
C-FCAM CH701 Ram SOOB
Hi Cam,

Out of curiosity, do you have a preference for either system?

Regards,

Quentin
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  #8  
Old 05-07-2017, 07:57 AM
TS Flightlines TS Flightlines is offline
 
Join Date: Apr 2010
Location: Ridgeland, SC
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Either firesleeved teflon, or stainless rigid tube. Will depend on the location of the 2 accessories, and how much bend you need. Rigid tube is less expensive, and in some cases a better choice than hose.

Tom
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  #9  
Old 05-07-2017, 08:20 AM
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kentlik kentlik is offline
 
Join Date: Sep 2015
Location: Oregon
Posts: 234
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Quote:
Originally Posted by bret View Post
My fuel lines are the carbon impregnated PTFE SS and coated type with fire sleeve protection installed, filters, pumps and regulator are on the engine side of the firewall. all components have heat shielding and the two firewall bulkhead fittings are steel. Vacuum lines to pressure regulator and MAPs are also fire sleeved.
Brett,
Who made your lines for you?
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  #10  
Old 05-08-2017, 07:36 AM
219PB 219PB is offline
 
Join Date: Aug 2014
Location: Victoria, Tx
Posts: 234
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I am installing the EFII system and I hardpiped the line that went from the fuel regulator to the bulkhead fitting. I used aluminum and firesleeved it. My bulkhead fitting for the supply and return are in the center tunnel area to make a clean installation in the cabin. For the filters I installed the ones that came from the kit and put them on top for ease of maintenance. I still need to fabricate a cover for the fuel assembly.





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