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Date: Sun, 17 Jun 2007 00:32:53 -0400
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From: "rtitsworth" <rtitsworth@mindspring.com>
Subject: SS Teflon Hoses vs SS Ruber hoses
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BACKGROUND:  The factory supplied brake line hoses (for the gear leg
segment) on my ES appear to be SS braided Teflon with a blue cotton (or
similar) abrasion braid over the SS, and swaged ends.  They are slightly too
long (approx 1.5").  They'll work as-is, but the routing would be better if
they were a bit shorter.

ISSUE:  While talking with an experienced A&P at my airport about finding
someone to cut off one end and re-swage a new end on my existing brake
line(s) to shorten them up a bit - He commented that I probably really
didn't want the Teflon hoses anyway.  He said, that since the Teflon liner
is typically thinner than a standard SS rubber hose liner, that there is a
risk of a broken SS braid wire piercing the Teflon and initiating a leak.
(???)

I had never heard of this and in fact thought that the SS Teflon hoses were
pretty much superior to SS rubber hoses in all (nearly all) aspects,
including longer (unlimited) service life.  I was aware that the ID of a SS
Teflon hose is typically slightly smaller than a similar sized SS rubber
hose, but I thought the flow rates were similar due to the smoothness of the
Teflon.  I'm not sure the flow rate comparison really applies to brake lines
anyway.

Thoughts/comments on SS Teflon vs SS Rubber?  Any confirmation of my A&P's
comments above (or is it an OWT - old wise tale).

Rick Titsworth