Alan what fluid type are you using? I have a set of seals for the valve but
they are EPDM rubber suitable for DOT 3/4/5.1 glycol base fluid or silicone,
But not suitable for Ordinary aircraft hydraulic fluid,
Ivor Phillips
XS486 London UK
CM Installed, rudder cables complete,
trial fit top and wings,Undercarriage fitted,playing with tie bar
----- Original Message -----
From: "Alan Burrows" <alan@kestrel-insurance.com>
Subject: Europa-List: RE:Brake Oil Seals
> <alan@kestrel-insurance.com>
>
>
> Can anyone help me with finding replacement seals for the parking brake
> unit on my tri-gear. I was doing an overhaul this weekend and found some
> of the seals were badly degraded, so as I had the unit in pieces it
> seemed sensible to replace them all. Also is there a "best way" to
> refill the system with fluid?
> I thought the best way was to force brake fluid up through one of the
> callipers under pressure, thereby pushing the air to the top of the
> system. This theory falls down however when you notice that there is a
> hole between the cylinders in the nice shiny piston unit that I thought
> kept the two brakes on separate systems. So if you fill from one
> calliper then you will simply force the air down the other as well as up
> into the master cylinder in the engine bay and it will not be possible
> to completely purge all the air or am I thinking about this wrongly?
> Many Thanks
>
> Alan
>
>
>
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