Fuel line injection run

(Dec. 29, 2006) -- The RV List this week had a thread on running the fuel line injection, and the responses provided some good information. One of them is excerpted here since it was also accompanied by some helpful pictures. You can read the entire thread here.

Q: I've a question for anyone who has done this. I have a Bendix Fuel Injection system installed in my RV-6A, with the servo mounted vertically where one normally has a carb. I'm in the process of running the fuel line from the servo to the distribution spider. I've seen installations that run this line right in front of the sump, to a hole in the inter-cylinder baffling and up to the spider. Using Vetterman's cross over pipes, I've about 7/8" clearance between the pipes and the sump. Has anyone done this and could they share pictures of their installation. Thanks for your help.

A: I have the AFP fuel injection vertical system. I ran my line from the spider down thru the baffle and then back above the inlet pipes and then around the sump and down to the controller. I had to provide a support where it turns from the rearward direction to the center and downward direction. I can do some pix if you want. I'll attach some that I already have.

I found that the AFP lines were too long. I had them provide a 45 deg. fitting and then I cut the line from the fuel pump to the controller so it had a smooth run to the controller. The 45 deg. fitting allowed the line to clear the tri gear mount and go nicely to the controller. The "battery and fuel line cable support" pix shows how I attached the line as it came down from the spider and ran it rearward.

The "throttle cable bracket" pix (first picture) shows the hose coming from the spider that was repositioned via a adel clamp at the back end of the throttle support bracket. The line now runs along the gold / white interface of the two brackets thru the adel clamp where it then turns toward the center and then down to the fuel controller. Maybe this will help.

Lengths of hose partly determine where the lines will run. I tried to keep them away from the exhaust system as much as possible. I'll probably put heat reflective aluminized tape around the critical areas where it comes close. (Jim Nelson)

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