[Healeys] Brake line

Larry Wendland bighealey3k at aim.com
Mon Jul 23 12:59:58 MDT 2018

Bob, I worked in aviation for 47 years and did a lot of safety wiring with stainless safety wire. The secret is to not over twist the wire and make it brittle. Your twists per inch look just right. For what it's worth.

'67 BJ8

-----Original Message-----
From: Bob Spidell <bspidell at comcast.net>
To: healeys <healeys at autox.team.net>
Sent: Mon, Jul 23, 2018 2:15 pm
Subject: Re: [Healeys] Brake line

Agree.  Anecdotally--I've only worked a bit with SS--I believe it      to be harder and more brittle than mild steel.  A couple of cases:
- when trying to get a gas-tight and permanent seal at the      exhaust manifold to downpipe flange, I tried some SS studs from      Doug Reid.  They seemed to snap off with less torque than the mild      steel ones, which I ended up using
- I was experimenting with safety wiring the set pins in my      gearbox, and tried mild steel wire instead of SS and the SS wire      broke more easily than the mild steel.  I used the SS anyway, as,      well, it's good enough for the FAA (see photo)
On 7/22/2018 11:20 PM, John Spaur      wrote:
Pipe            bending is an art …--and            switch to stainless (If            you decide to use stainless steel be prepared for it. The            flaring tools are different! Single flares, you can succeed            most of the time but quality control is difficult. Double            flares, maybe once or twice if you are lucky until the tool            breaks. The best advice it don’t use SS unless you have the            right tools or have a shop flare the lines. You should also            install copper cone washers between the SS flare and the            brake line seat. It prevents galling of the seat. Oh… the            washers are hard to find and hard to install; but you can            make them.)
I            bent the SS lines for my BT7 and then had a local brake            wholesale supply shop flare the lines. I don’t recall what I            paid but it was not expensive and it was in and out the same            day.
John            Spaur
’62            BT7
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