If you look at the ETKA the hose that connects the injector rails and other
stuff on the engine is not the same as what is often supplied on rolls. You
have to order six pieces. This hose does not produce the gummy stuff. That
gummy stuff appears to be oils or whatever within the outer jacket. It ozzes
out from heat, jacket or not. The sleeve may also be there for temperature
(heat) rejection more than abrasion. Do not go back to the earlier style
braided hose. As it is weak. Also be aware when getting hose of the
production date. I just recently received some hose that was dated 2002. As
for clamps the 7mm almost doesn't need clamps. For connections that should
last the life of the hose I like the crimp type. For the others I use the
smooth bore stainless.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Bruce Todd
Sent: Monday, June 25, 2012 11:01 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Fuel line sheath / casing

Hi guys,

What is the best practice in relation to keeping or disposing of the fuel
line sheathing which presumably protects the fuel line as it travels to the
fuel injectors across and around the air distribution system in the engine
compartment?  I remember reading past posts about a weird interaction
between some nylon fuel hoses and the sheathing which produces a brownish
residual almost like the hose is melting or slowly disintegrating.

I replaced my fuel lines about four years ago with a good product for fuel
injection but I'm looking to replace sections of hose again because I am
noticing areas of this gummy phenomena. I am leaning toward replacing my
hoses with the knitted / braided cloth FI hose instead of the more expensive
nylon fuel injection hose and I'm thinking of completely doing away with the
sheathing.

What sayeth the list?

Thanks,

BT