Author Topic: Fuel line connections  (Read 345 times)

pilotsailing

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Fuel line connections
« on: Jan 01, 2018 »
Looking at the plans on page 23, fuel lines. The plans say to just slide a fuel hose over the aluminum tube and clamp. There are no barbs or slight bulbs on the part of the aluminum line where the hose clamps over it. Is this a good practice ? Everything else that I have seen on fuel systems has a little more security on the connection.

eschrom

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Re: Fuel line connections
« Reply #1 on: Jan 02, 2018 »
My fuel line has a few connections like that. In fact, the barb on AN fittings is so big and square that it can make attaching the hose pretty difficult so I purposefully cut them off. Remember the fuel pressure is just about zero. Put a tight clamp on the hose and you won't have a problem.

Ed

pilotsailing

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Re: Fuel line connections
« Reply #2 on: Jan 02, 2018 »
Super thanks !

Bil438

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Re: Fuel line connections
« Reply #3 on: Jan 03, 2018 »
Since a fuel leak can be so serious, some builders keep the flared ( ) tubing and use a heat gun to warm the tubing enough to install it. I have also used a thin film of liquid detergent to lubricate the tubing.
Last I use the fire resistant sleeving to protect the fuel lines in the engine compartment. The hydraulic shops and speed shops have it. You know why if an exhaust pipe/gasket ever came off. BillE

Smokyray

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Re: Fuel line connections
« Reply #4 on: Jan 03, 2018 »
Using AC 43.13-1B as a reference for plumbing is always a good idea.
 On 994SP  I used automotive fuel line with brass fittings and SS clamps aft of the firewall from the fuel tank to the boost pump. BP outlet is a braided steel line to a through fitting on the firewall. I retained the flared aluminum BP bypass line Scott installed.
From there all lines FWF are braided steel, fire-sleeved for petroleum products.

V/R
Smokey
« Last Edit: Jan 03, 2018 by Smokyray »

 

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