Todd Carrico wrote:

 If you can assemble the oil lines for your airplane in the garage,

don' t use them. Have them made by Aeroquip with crimped connections

and

pressure tested. You should almost be able to pick up the plane by

pulling on

one end of that hose.
Lynn E. Hanover

  Lynn,
  I've used Earl's hose and fittings on oil lines in my cars for 20 years
without a problem. I'd like to hear of any bad experiences you've had that
makes you say anything that can be assembled at home isnt good enough.

Have

you had failures with Earl's (or Aeroquip) hose and fittings?

Mike Wills

Can't speak for Lynn, but in three years of buidling aircraft hoses I had
one failure in service.  The hose was kinked (by the installer), and failed
after 300 hours of service.  Luckily, no one was injured.  I have had some
weepers that did not make it out of the shop, and I have never seen one
explode.

I think it would be prudent to purchase new connectors, and hose, from one
manufacturer.  Stratoflex, and Aeroquip are both well known and respected.
Our shop used Aeroquip.  Most all of the hoses can be built with hand tools,
with the exception of the crimped fittings.  Crimped fittings are great if
you are making a lot of hoses, and they are lighter.  Can;t speak for
Earl's.  Good or bad.

Aeuoquip used to have a hose with integral firesleeve.  Bascily it was hose
with a layer of silicone molded onto it.  Clean off the ends, put on your
fittings.  Presure tes and clean.  Then they make a sleeve that you put on
the barrel of the assembly and fill it up with red RTV.  Wipe the excess off
and let it cure overnight.  Nice neat.

tc

 
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