Today's Message Index:
----------------------
1. 03:28 AM - Re: Cooling shroud for air compressor? (A. Dennis Savarese)
2. 07:37 AM - Re: Cooling shroud for air compressor? (Heaysr)
Message 1
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| Subject: | Re: Cooling shroud for air compressor? |
Does the Yak 55 have a pressure relief valve as the Yak 52 and CJ6 has?Than
ks,Dennis
From: Royden Heays <heaysr@telus.net>
To: m14pengines-list@matronics.com
Sent: Thursday, January 21, 2016 1:20 AM
Subject: RE: M14PEngines-List: Cooling shroud for air compressor?
#yiv6066572137 #yiv6066572137 -- _filtered #yiv6066572137 {panose-1:2 4 5 3
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in;}#yiv6066572137 div.yiv6066572137WordSection1 {}#yiv6066572137 John B,
=C2-Sorry, but I want to put =9Csloop=9D in front of your nam
e. =C2-Yeah, you have to have a pressure indicator in the cockpit, otherw
ise you don=99t know when to unload the compressor. One was installed
when I acquired my Yak. =C2-I=99ll check this weekend to see where
the tap off is. I=99m sure your Yak has a ground air-charge fitting
just behind the trailing edge of the left wing root. I think the tap off is
within the fuselage on that line but will verify for you. I have had to re
place the 1,000 psi gauge required several times. So if you are going to fi
t one, get a few spares and if you have a system air leak check there first
. =C2-Royden =C2-From: owner-m14pengines-list-server@matronics.com [ma
ilto:owner-m14pengines-list-server@matronics.com] On Behalf Of John B
Sent: Sunday, January 17, 2016 9:22 AM
Subject: Re: M14PEngines-List: Cooling shroud for air compressor? =C2-Roy
den-The airplane already has one of these installed.=C2- So, I don't have
an air pressure indicator.=C2- How does one install one?John B =C2-On
Sun, Jan 17, 2016 at 9:13 AM, Heaysr <heaysr@telus.net> wrote:
An alternative to cooling is to stop it getting hot in the first place. Ins
tall an unloader. Kimball sell a kit. It is a valve that is switchable from
the cockpit that vents the out going compressed air line to atmosphere. TH
e compressor will not heat up while it is nothing to compress. Venting to a
tmosphere probably save a bit of power too. I start the engine with compres
sor on and by the end of run up the pressure in the receiver is up to opera
ting pressure, then flick the switch to vent to atmosphere for the flight.
=C2- =C2-Royden Heays =C2------ Original Message -----
From: John B <jbsoar@gmail.com>
Sent: Sun, 17 Jan 2016 07:20:02 -0700 (MST)
Subject: M14PEngines-List: Cooling shroud for air compressor? =C2-Does a
cooling shroud for the air compressor exist for the M14P?=C2- Perhaps som
ething similar is available from the CJ operators?=C2- I'm a new operator
of a Yak 55 in Arizona, and I'm wondering if improved cooling would be a g
ood idea for our high summer temperatures.Thank you!John B =C2- =C2-
=C2-
Message 2
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| Subject: | Re: Cooling shroud for air compressor? |
Hello Dennis.
Yes, the Yak 55 has a pressure relief valve that cycles all the time when n
o unloader is fitted.The cylinder bore and piston diameter is slightly smal
ler than the valve on the Yak 52, I believe.
Regards
Royden
----- Original Message -----
From: A. Dennis Savarese <dsavarese0812@bellsouth.net>
Sent: Thu, 21 Jan 2016 04:21:00 -0700 (MST)
Subject: Re: M14PEngines-List: Cooling shroud for air compressor?
Does the Yak 55 have a pressure relief valve as the Yak 52 and CJ6 has?Than
ks,Dennis
From: Royden Heays <heaysr@telus.net>
Sent: Thursday, January 21, 2016 1:20 AM
Subject: RE: M14PEngines-List: Cooling shroud for air compressor?
John B, Sorry, but I want to put =9Csloop=9D in front of your
name. Yeah, you have to have a pressure indicator in the cockpit, otherwis
e you don=99t know when to unload the compressor. One was installed w
hen I acquired my Yak. I=99ll check this weekend to see where the ta
p off is. I=99m sure your Yak has a ground air-charge fitting just be
hind the trailing edge of the left wing root. I think the tap off is within
the fuselage on that line but will verify for you. I have had to replace t
he 1,000 psi gauge required several times. So if you are going to fit one,
get a few spares and if you have a system air leak check there first. Royd
en From: owner-m14pengines-list-server@matronics.com [mailto:owner-m14pen
gines-list-server@matronics.com] On Behalf Of John BSent: Sunday, January 1
7, 2016 9:22 AMTo: m14pengines-list@matronics.comSubject: Re: M14PEngines-L
ist: Cooling shroud for air compressor? Royden-The airplane already has one
of these installed. So, I don't have an air pressure indicator. How does
one install one?John B On Sun, Jan 17, 2016 at 9:13 AM, Heaysr <heaysr@tel
us.net> wrote:An alternative to cooling is to stop it getting hot in the fi
rst place. Install an unloader. Kimball sell a kit. It is a valve that is s
witchable from the cockpit that vents the out going compressed air line to
atmosphere. THe compressor will not heat up while it is nothing to compress
. Venting to atmosphere probably save a bit of power too. I start the engin
e with compressor on and by the end of run up the pressure in the receiver
is up to operating pressure, then flick the switch to vent to atmosphere fo
r the flight. Royden Heays ----- Original Message -----From: John B <jbsoa
r@gmail.com>To: m14pengines-list@matronics.comSent: Sun, 17 Jan 2016 07:20:
02 -0700 (MST)Subject: M14PEngines-List: Cooling shroud for air compressor?
Does a cooling shroud for the air compressor exist for the M14P? Perhaps
something similar is available from the CJ operators? I'm a new operator o
f a Yak 55 in Arizona, and I'm wondering if improved cooling would be a goo
d idea for our high summer temperatures.Thank you!John B
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