Hi! All/Graham,/Roland
Fuel system sealant.
Yes, Graham is right , Hylomar is a product made under licence from Rolls
Royce who developed it, I worked there and it was mandatory . However it
only requires a very thin but positive film, no globules should be allowed
to be ingested into the live fuel system and definitely allow 10 minutes for
the solvent to evapourate before assembly of the flanges/ threads. Had some
taken out by my mini Andair gascolator filter mesh and wondered what it was
for a while.
Regards
Bob Harrison G-PTAG
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of GRAHAM
SINGLETON
Sent: 18 September 2013 20:01
Subject: Re: Europa-List: Airworld fuel gauge sealing - what to use
Roqland
use Hylomar Blue, Rolls Royce use it on their engines so it must be good.
Should find it locally.
Graham
_____
From: Rowland Carson <rowlandcarson@gmail.com>
Sent: Wednesday, 18 September 2013, 19:48
Subject: Re: Europa-List: Airworld fuel gauge sealing - what to use
On 18 Sep 2013, at 19:25, graeme bird wrote:
> I fitted the airworld fuel gauge a while back and when the tank is up to
the top of the tube it seeps at the screw heads and round the top of the
tank. I spoke to airworld and they said to take each screw out and apply
some automotive gasket compound. I brought some fuel resistant hylotyte from
hylomar. Has anyone had a similar experience? The design seems bound to fail
as the fuel is surely going to seep through the threads. Also tightening is
going to just crush the poly tank.
Graeme - I have not yet tested the fuel-tightness of my tank, but I did
pressurise it as much as my lungs would allow while observing for bubbles in
washing-up liquid wiped around the likely areas of escape (old bicycle tube
puncture finding technique). I had sealed around my Mod 60 tank probe with
Loctite 5922, which I got from Grampian Fasteners. It was recommended to me
by Brian Fogg, who said that smearing it around the flange of the sender had
cured the cockpit fuel smell he'd had for a long time. He got his from
Halfords, but my local branch never seemed to be able to get any in stock.
Hope this helps.
in friendship
Rowland
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