REFLECTOR: Aluminum lines on the engine

[Bob Jackson (Jax Tech)]

Hello Brian,

I would not use aluminum in a reciprocating engine compartment, especially
(obviously) between the engine and any part (turbo, etc.) that could be
moving even slightly (e.g., on the bracket mount) with respect to the other
end.

We used Aeroquip AE466 hose for all out turbo oil plumbing, as well as for
all our in-compartment fuel plumbing (except a short length of aluminum
between where the fitting comes through the firewall and connects to the
filter, also mounted on the firewall).  We've seen where the silicon hose
covering has protected the inner hose from heat where we've had heat leaks.

	http://www.aircraftspruce.com/catalog/appages/ae466.php

Bob Jackson
Custom Turbo IO-550N
N2XF

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Brian Michalk
Sent: Friday, November 30, 2012 8:47 AM
To: Velocity Aircraft Owners and Builders list
Subject: REFLECTOR: Aluminum lines on the engine

Right now I have a few stainless braided hoses on the engine for oil to 
the turbo.  I'm concerned about long term aging due to the heat, and am 
wondering about replacing it with hard aluminum line.

What is the best practice for this?  The Franklin did originally come 
with a rubber type of hose to drain oil off the fuel pump pad.
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