Today's Message Index:
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1. 12:12 PM - Air leak (Steven Johnson)
2. 06:40 PM - Re: Air leak (Anthony Savarese)
Message 1
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Does anyone have a suggestion on how to locate a slow leak on in the main air system
of a Yak 52? I replaced the pressure relief piston, and that decreased,
but did not eliminate my leak. Air will take a week to bleed down to being too
low to start my plane. Is there any type of instrument that can detect air escaping?
Ive tried using a soap solution with no success and I cant hear anything.
I would like to identify the source of the leak prior to tearing the whole
system apart.
Steve
N9900X
Sent from my iPad
Message 2
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Have you sprayed the soapy water on the external air fill port hole? If you have
a Schrader valve installed on the external air fill port and there is a valve
core in the Schrader valve, remove the valve core permanently because the external
air fill port is protected by a check valve.
FWIW, most Schrader valve cores are like the ones we find in tire tubes and valve
stems on our automobiles are only good to about 150 PSI. Needless to say,
the pneumatic system pressure on the Yak and CJ far exceed 150 PSI.
Dennis
Sent from my iPhone
> On Mar 8, 2022, at 3:14 PM, Steven Johnson <sajdds@comcast.net> wrote:
>
>
> Does anyone have a suggestion on how to locate a slow leak on in the main air
system of a Yak 52? I replaced the pressure relief piston, and that decreased,
but did not eliminate my leak. Air will take a week to bleed down to being too
low to start my plane. Is there any type of instrument that can detect air
escaping? Ive tried using a soap solution with no success and I cant hear anything.
I would like to identify the source of the leak prior to tearing the whole
system apart.
>
> Steve
> N9900X
> Sent from my iPad
>
>
>
>
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