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1. 06:45 PM - Re: Re: Nitrogen Loss (Anthony Royal)
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| Subject: | Re: Nitrogen Loss |
I tightened everysingle fitting in the main nitrogen supply from the nose a
ll the way to therear pressure gauge, braking valves on the rudder peddle a
nd the brake valvebeside the front stick. Front emergency system flawless.
My arms look like I=99ve been fighting with a wild cat.In my case, I
found several connections, that still had the original safetywire, that I t
ightened the fitting by a turn or more. The packing nut for the nitropurge
valve was loose and the check valve in the fill line to the nitro tankshad
a bad place in the flare and the internal rubber seal was pretty hard ( Ito
ok it apart) which could allow nitro to flow out the fill valve.=C2- As o
f today, I have mine down to 0.6 atm perhour loss. Nothing else I have done
has made it any better. So, right now Ishould be good for about 10 days, n
ot factoring into brake usage. I=99m going toreplace the check valve
if I can get one from the Czech Republic or convert to the high pressure sc
hrader valve. I believethis will take care of the rest of the 0.6 atm probl
em. I made a solid flat rubber washer and put in the nitro fill cover/cap.
When I remove the cover, the rubber has a small bubble in it so it seems th
ere is some leakage coming from somewhere.
Right now, I can live with the small amount of leakage but good info to kno
w and thank you for passing it along! But that $500 sniffer hurts. My bothe
r in law works for a gas company so I could get a propane sniffer from him
on loan.
On Saturday, April 2, 2016 11:09 AM, N777ZE <Piper72pilot@hotmail.com>
wrote:
We use whats called bleed air, 97 nitrogen 3 percent butane, and a robinair
e flammable gas sensor.=C2- I mentioned this to tom schnell at u-ia and i
t helped them on their 29.=C2- The sniffer is aboit 500$ though.=C2- I
have one for work that has a goose neck that makes it easy to get in weird
places.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=454468#454468
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
S -
-
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
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