Re-enforced rubber hoses are fine on suction side as won't collapse. The pressure side on most carburetted engines is normally only pressurised to a few PSI, at a maximum 7 PSI (hardly high pressure) and again rubber hose is fine.
The main problem with rubber hose is that it burns. If you have an engine fire that is not fuelled by gasoline, you soon will when the rubber catches fire and burns through. There is a fire resistant covering that can be used to cover rubber fuel and oil hoses. I have rubber hoses with the fire resistant covering for my Jabiru installation. Regards Barry Kruyssen k...@bigpond.com http://www.users.bigpond.com/kr2/kr2.htm Cairns, Australia -----Original Message----- From: krnet-bounces+kr2=bigpond....@mylist.net [mailto:krnet-bounces+kr2=bigpond....@mylist.net] On Behalf Of AVLEC Sent: Sunday, 11 February 2007 4:06 AM To: KRnet Subject: KR> fuel lines Hi guys I recently took delivery of a 3300 Jabiru motor and a firewall forward kit for it to be installed in a whisper motor glider. Here is a factory supplied motor and fitment kit that has the entire fuel system plumbed with "rubber" fuel hose, barbed fittings and hose clamps. This is for the suction lines as well as for the pressurised part after the fuel pumps. Come to think of it, the 2.0L fuel injected hot hatch (VW GTI thrasher, sorry Mark I couldn't resist) that I used to have used rubber hose and hose clamps troughout the system except it had steel pipes under the car for obvious reasons. If this is accepted practise by Jabiru and even in high pressure auto fuel injection systems, why is it frowned upon in aviation? Regards Dene Collett KR2SRT builder South africa Whisper assembler See: www.whisperaircraft.com mailto: av...@telkomsa.net
