Fuel Hoses

I use Gates Hoses from automotive supply shops -https://www.gates.com/us/en/fluid-power/engine-hose/fuel-line-hose.html

You will be able to find performance specifications on all Gates hoses -https://www.gatesaustralia.com.au/-/media/files/gates-au/automotive/brochures/cooling-system-and-hose-products/gates-fuel-hose-flyer--june-2018.pdf

My preference is the "Barricade  Fuel Injection" hose as it has a slightly lower permeability and higher temperature rating than the equivalent "Barricade Carburettor Hose"  Note: "Barricade Carburettor Hose" meets Rotax specifications.

"thermal protection sleeves" do have some benefit but mostly as an aesthetic enhancement, particularly if not professionally installed. If you insist on using them, I suggest limiting it to over engine fuel lines to try & reduce the impact of convective heat from the engine, when on the ground.

If you have "thermal protection sleeves" on your existing fuel lines, this can usually be removed & reused. Removal is aided by using compressed air blown in from one end, to expand the sleeve and allow it to slip off - an assistant can help with this.

I use Gates Barricade hose for carbed and fuel injection. It is rated for any ethanol fuel you’ll put in your plane. I use what some call Carb  hose  or what some call vapor recovery hose rated to 50 psi for carburetor  912’s and Gates Barricade fuel injection hose rated for 100 psi for the fuel injection engine. They both come in 5/16, 1/4 and 3/8 if you use it. I find too many aircraft with barbed brass fittings vs smoother AN fittings. Too many times in the early days I tried fuel injection hose on the barbed fittings and because it is re-enforced it didn’t go over the barbed fittings easily and would scrape off some of the inner hose liner and that debris can float down stream. The 50 psi hose has some give and goes over fittings a lot easier with no damage to the inner liner. In 20 plus years I’ve never ever had a hose issue using Gates Barricade hose. I use Oetiker single ear clamps on all fuel hose and don’t forget fuel and oil hose belong in protective fire sleeve.

The Rotax Service centers all seem to use different hose between them.

p.s.

You can buy this hose locally. The difference between metric and USA standard hose is .3 - .4 tenths of one millimeter for these hoses. I’ve pressure tested the carbed 1/4 and 5/16 hose rated to 50 psi to 100 psi without any leaks or failures so our carbed engines running at 3.5 - 6 psi aren’t an issue.

Hi Gideon

The Rotax call out is for any ROTAX supplied lines only.  For lines supplied by an OEM you would need to contact them for what replacement is needed.  So if you have a Rotax fuel line equipped engine the iPC will show all the parts and give you the part numbers.  If it was something built up by an OEM, as we see from a lot of European supplied aircraft, you need to call the distributor of that brand.  

Download the current IPC to view all the pages.  Attached are a few samples. 

Cheers

Note to Roger...

Gideon appears to be in Israel therefore fuel line parts may be more difficult to get.  It may be easier to get it from the OEM aircraft supplier to find the original hoses and clamps. 

Cheers

Hi RW,

I never considered that. Really good point.