Whoa, look what I started!!!
All I wanted was some brake lines!!!
:-)
----- Original Message -----
From: Mike Gibbons <gibbons@fn.net>
To: dakota trucks <dakota-truck@buffnet.net>
Sent: Thursday, December 02, 1999 8:08 AM
Subject: Re: DML: Stainless Brake lines
> I mention these things because you made a blanket statement that braided
SS
> lines are a P.O.S. You also said that rubber is safer. I disagree. I bring
> up the comparison with aircraft because I think this application is the
> ultimate test of a line. As for dirt getting into the braid, check an
> aircraft based out of Midland/Odessa or Lubbock Texas. The red dirt and
> sand get into EVERYTHING. In my 12 years as an aircraft mechanic, I have
> never encountered a line I could say broke down because of dirt in the
> braid. As for articulation, a truck's brake line may bend or flex maybe
30,
> 35 deg max. Typical retractable landing gear will 'flex', or articulate a
> minimum of about 90 deg with every retraction/extension. Regarding
> inspections, yes, aircraft are inspected religiously, but it's not the
> inspections that keep the lines from failing, it's their reliability.
IMHO,
> if a component can withstand the extreme conditions encountered in
> aviation, automotive use is a cakewalk.
>
> Mike G.
>
> (in response to)
>
> Mike,
> I think you're missing the point. I wont argue that SS covered brake
> hoses allow better braking then rubber. Granted, rubber expands, teflon
> does not. I wont argue that SS lines resist abrasion better than the
> rubber
> lines. The problem with the SS lines is in fourwheeling/offroad
> applications (for the most part). Once dirt gets in the braid, its stuck
> between the SS and the teflon hose that the braid is protecting where it
> rubs it down till it breaks.
> I'm not sure what articulation and airplanes and temperature
> differences has to do with it. 300F is over the boiling point of DOT3
> brake
> fluid. Vibration wise, I'm not sure what to say, my engine mounts are
> rubber?
> Sometimes, I think airplanes are great examples of "the right way to
> do
> things" but I dont think this is the case. Airplanes have alot more to
> deal
> with (temp and vibrations and such) that probably make SS lines a more
> viable solution for them, but not for us "earthbound" folks. Also, think
> about the safey inspections and maintanence schedules of airplanes
compared
>
> to your truck.
>
> - --
> Dave
>
This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:47:45 EST