Today's Message Index:
----------------------
1. 08:17 AM - Re: JN Trading (Pete Taylor)
2. 08:21 AM - Hissing Pop-Off Valve (Jim Shanks)
3. 11:25 AM - Re: Hissing Pop-Off Valve (Gary Gabbard)
4. 01:27 PM - Re: Hissing Pop-Off Valve (Yak Pilot)
5. 06:28 PM - Re: Hissing Pop-Off Valve (A. Dennis Savarese)
6. 07:13 PM - M-14P Air pump (Todd McCutchan)
Message 1
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Ernie,
I looked at the plane that Andrew is selling.Call me and I will fill you in.
Pete Taylor 530-200-0144
________________________________
From: Phil <psalter@aol.com>
Sent: Friday, April 18, 2014 10:03 PM
Subject: Re: Yak-List: JN Trading
Ernie,
I believe I purchased the last CJ Andrew sold and bought one from him in 2007.
Phil
Sent from my iPad
On Apr 18, 2014, at 10:06 AM, Ernest Martinez <erniel29@gmail.com> wrote:
Has anyone done business with Andrew Zeng from JN Trading? I remember many opinions
shared years ago, but would appreciate any recent updates.
>
>
>Thanks
>
>
>Ernie
Message 2
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| Subject: | Hissing Pop-Off Valve |
When servicing the air system on our stock CJ, the pop-off valve begins
=9Chissing=9D at around 32 ATM and
=9Cpops-off=9D at around 38 ATM (not allowing system to be
pressurized any higher.) After popping off and servicing discontinued,
hissing will continue (slowly diminishing) until pressure settles at
around 32 ATM. Although probably plenty for a few start attempts, I
want to fix the problem and have the full 50 ATM available.
I know the valve is adjustable, but is the hissing a separate problem
that needs to be addressed? Also, what specifically is causing the
valve to hiss?
Thanks.
Jim Shanks
shankeroid@verizon.net
Message 3
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| Subject: | Re: Hissing Pop-Off Valve |
Jim. The pop off valve has a rubber seat inside of it. It gets old and hard,
yours probably needs to be replaced. Very easy to do. I just did mine. Got p
arts from Doug Sapp. Last week. He will be out of country for about another w
eek. You might try adjusting the valve in a bit and retry the servicing. It m
ay help. Don't turn it in to far on the attempt. Just maybe a half turn and s
ee what the pressure does. If it helps a bit then try a little more. Gary.
LAS. CJ. N22YK
Sent from my iPhone
> On Apr 19, 2014, at 8:21, "Jim Shanks" <shankeroid@verizon.net> wrote:
>
>
> When servicing the air system on our stock CJ, the pop-off valve begins
=9Chissing=9D at around 32 ATM and =9Cpops-off=9D at ar
ound 38 ATM (not allowing system to be pressurized any higher.) After poppi
ng off and servicing discontinued, hissing will continue (slowly diminishing
) until pressure settles at around 32 ATM. Although probably plenty for a f
ew start attempts, I want to fix the problem and have the full 50 ATM availa
ble.
>
> I know the valve is adjustable, but is the hissing a separate problem th
at needs to be addressed? Also, what specifically is causing the valve to h
iss?
>
> Thanks.
>
> Jim Shanks
> shankeroid@verizon.net
>
>
>
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>
Message 4
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| Subject: | Re: Hissing Pop-Off Valve |
The hiss is just air escaping by the seal.=C2- It is normal for it to do
this.=C2- The seal will leak before it pops fully off, unless brand new,
and even then some do.=C2- Ignore the hiss.=C2- Adjust carefully as Gar
y mentioned.=C2-=C2- I would go NO MORE than 1/4 turn at a time, probab
ly not even that.=C2-=C2- It doesn't take much, believe me.=C2-=C2-
=0A=0AMark=0A=0A=0A=0A=0A________________________________=0A From: Gary Ga
bbard <ggg6@att.net>=0ATo: "yak-list@matronics.com" <yak-list@matronics.com
> =0ASent: Saturday, April 19, 2014 2:19 PM=0ASubject: Re: Yak-List: Hissin
g Pop-Off Valve=0A =0A=0A=0AJim. The pop off valve has a rubber seat inside
of it. It gets old and hard, yours probably needs to be replaced. Very eas
y to do. I just did mine. Got parts from Doug Sapp. Last week. He will be o
ut of country for about another week. You might try adjusting the valve in
a bit and retry the servicing. It may help. Don't turn it in to far on the
attempt. Just maybe a half turn and see what the pressure does. =C2-If it
helps a bit then try a little more. =C2-Gary. LAS. =C2-CJ. N22YK=0A=0A
Sent from my iPhone=0A=0AOn Apr 19, 2014, at 8:21, "Jim Shanks" <shankeroid
@verizon.net> wrote:=0A=0A=0A=C2-=C2-=C2- =0A>When servicing the air
system on our stock CJ, the pop-off valve begins =0A=9Chissing
=9D at around 32 ATM and =9Cpops-off=9D at around 38 ATM (not a
llowing system =0Ato be pressurized any higher.)=C2- After popping off an
d servicing =0Adiscontinued, hissing will continue (slowly diminishing) unt
il pressure settles =0Aat around 32 ATM.=C2- Although probably plenty for
a few start attempts, I =0Awant to fix the problem and have the full 50 AT
M available.=0A>=C2-=0A>=C2- I know the valve is adjustable, but is the
hissing a separate =0Aproblem that needs to be addressed?=C2- Also, what
specifically is causing the =0Avalve to hiss?=0A>=C2-=0A>Thanks.=0A>=C2
-=0A>Jim Shanks=0A>shankeroid@verizon.net=0A>=C2-=0A>D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=0Aist"">http:/
/www.matronics.com/Navigator?Yak-List=0AD=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
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D=3D=3D=3D=3D=3D=3D=3D=3D=0A//forums.matronics.com=0AD=3D
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=0Aot
;">http://www.matronics.com/contribution=0AD=3D=3D=3D=3D=3D=3D
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Message 5
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| Subject: | Re: Hissing Pop-Off Valve |
The pop off (pressure RELIEF) valve is controlled by spring tension.=C2-
The tighter you make the "top hat" (turn it clockwise), the higher the pres
sure goes.=C2- When the pressure reaches the preset spring pressure, the
valve opens.=C2- The hiss is the pressure relief which stops when the pop
off valve closes.=C2- This is perfectly normal.=C2- It's just like the
pressure relief valve on a shop compressor.=C2- If the pressure in the c
ompressor exceeds the pressure relief valve preset pressure, the valve open
s and "dumps" the excess pressure.=0ADennis=C2- =0A=0A=0A=0A=0A=0A_______
_________________________=0A From: Jim Shanks <shankeroid@verizon.net>=0ATo
: yak-list@matronics.com =0ASent: Saturday, April 19, 2014 10:21 AM=0ASubje
ct: Yak-List: Hissing Pop-Off Valve=0A =0A=0A=0A=C2-=C2-=C2- =0AWhen
servicing the air system on our stock CJ, the pop-off valve begins =0A
=9Chissing=9D at around 32 ATM and =9Cpops-off=9D at a
round 38 ATM (not allowing system =0Ato be pressurized any higher.)=C2- A
fter popping off and servicing =0Adiscontinued, hissing will continue (slow
ly diminishing) until pressure settles =0Aat around 32 ATM.=C2- Although
probably plenty for a few start attempts, I =0Awant to fix the problem and
have the full 50 ATM available.=0A=C2-=0A=C2- I know the valve is adjus
table, but is the hissing a separate =0Aproblem that needs to be addressed?
=C2- Also, what specifically is causing the =0Avalve to hiss?=0A=C2-=0A
=======
Message 6
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How much HP difference is there between a "loaded" and "unloaded" air compre
ssor on the M-14P?
I have heard of guys putting in a manual "bypass" dumping air from the compr
essor overboard to "unload" the compressor for more HP.
I would think this is both
A) minimal increase in HP (1 - 2 HP?)
And
B) once your air is "topped off" doesn't the pressure relief valve or "pop o
ff" valve open and perform the exact same function?
Todd McCutchan
T-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd@fastaircraft.com
www.fastaircraft.com
> On Apr 19, 2014, at 6:24 PM, "A. Dennis Savarese" <dsavarese0812@bellsouth
.net> wrote:
>
> The pop off (pressure RELIEF) valve is controlled by spring tension. The t
ighter you make the "top hat" (turn it clockwise), the higher the pressure g
oes. When the pressure reaches the preset spring pressure, the valve opens.
The hiss is the pressure relief which stops when the pop off valve closes.
This is perfectly normal. It's just like the pressure relief valve on a s
hop compressor. If the pressure in the compressor exceeds the pressure reli
ef valve preset pressure, the valve opens and "dumps" the excess pressure.
> Dennis
>
>
>
> From: Jim Shanks <shankeroid@verizon.net>
> To: yak-list@matronics.com
> Sent: Saturday, April 19, 2014 10:21 AM
> Subject: Yak-List: Hissing Pop-Off Valve
>
>
> When servicing the air system on our stock CJ, the pop-off valve begins
=9Chissing=9D at around 32 ATM and =9Cpops-off=9D at ar
ound 38 ATM (not allowing system to be pressurized any higher.) After poppi
ng off and servicing discontinued, hissing will continue (slowly diminishing
) until pressure settles at around 32 ATM. Although probably plenty for a f
ew start attempts, I want to fix the problem and have the full 50 ATM availa
ble.
>
> I know the valve is adjustable, but is the hissing a separate problem th
at needs to be addressed? Also, what specifically is causing the valve to h
iss?
>
> Thanks.
>
> Jim Shanks
> shankeroid@verizon.net
>
> http://ww"nofollow" target="_blank" href="http://forums.matronics.com/
">http://f=========
>
>
>
>
>
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>
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