Today's Message Index:
----------------------
1. 08:28 AM - Re: Pneumatics (doug sapp)
2. 08:28 AM - Re: Pneumatics (doug sapp)
3. 09:18 AM - Re: Pneumatics (Jan Mevis)
4. 09:27 AM - Engine rebuild (jblake207@comcast.net)
5. 01:25 PM - Re: F-4 Ejection Barstool | Motoart (Paul Hamlin)
6. 02:53 PM - Re: F-4 Ejection Barstool | Motoart (Roger Kemp M.D.)
7. 02:53 PM - Re: F-4 Ejection Barstool | Motoart (Roger Kemp M.D.)
8. 03:44 PM - Re: Engine rebuild (skidmk)
9. 04:02 PM - Pneumatics (Chris Wise)
Message 1
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Guys,
As many of you know up until 2008 one of my duties in life was to preserve
flowers (Riverview Floral LTD), primarily Gypsophila, which is a small
wildflower used mainly as a filler flower in bouquets and floral
arrangements. Without boring you with all the biology, and chemistry
involved, I'll get to the nuts and bolts of the process. We normally would
use 5 to 7000 gallons of USP grade Glycerine annually. Glycerine is both a
humectant (absorbs water), and a plasticizer which lends flexibility to the
product once introduced into the cellular structure of the plant.
Alcohol also has the ability to absorb moisture, so the use of these two
items in limited amounts in the pneumatic system should be a good thing
unless we have an 0 ring incompatibility problem with the Ethyl alcohol.
Glycerine is inert, so no worries there. I say "limited quantities"
because many of the gear actuators which I have been getting in for cores
have most if not all of the high pressure grease washed out of them because
of over lubrication with light machine or tool oil which was incorrectly
injected into the system.
Do NOT mess with Methyl alcohol, it's very bad stuff, nerve damage,
blindness, are only a few of the problems associated with the use of this
chemical.
I have a limited amount of US Pharmaceutical Grade Glycerine which could be
decanted into gallon jugs (it's in 55 gallon drums now). Price is about
$25.00 per gallon. Weight is 10.41 pounds per gallon.
Always Yakin,
Doug
On Sun, Feb 14, 2010 at 11:22 PM, Jan Mevis <jan.mevis@informavia.be> wrote:
>
> The product originally used by the Russians (sixties/seventies of the
> former
> century) is not available anymore, and its content is unknown. What the
> Russians and the Lithuanians advise now, is a 50/50 volume mixture of very
> clean glycerine and 96% ethylalcohol, only a few cubic centimeters per
> actuator. The Russians started using this mixture in the eighties and they
> loved doing this work, because they could order somewhat more ethylalcohol
> and use it for their own home-made wodka (at least this has been told to me
> by a Russian mechanic).
>
> The Russian and Lithuanian mechanics insert it straight into the actuators,
> using an injection needle and at the same time pumping with the gear leg to
> suck it in.
>
> Jan RA2005K YK50
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Martin (Home)
> Sent: zondag 14 februari 2010 3:01
> To: yak-list@matronics.com
> Subject: Yak-List: Pneumatics
>
>
>
> What have most of you been using for lubricating oil?
>
> Martin Mattes
>
>
> Re: Regarding winterizing I meant charging pneumatic system with
> alcohol-oil
>
> mix for winter cold proofin
>
> You have to check with Yak 52 maintenance manual first.
> I did it but it was long time ago (more then 20 years) and I may be wrong
> at
>
> some points. Procedure is the same when you are doing regular maintenance
> check. First, this should be special lubricant which pneumatic system is
> usually charged with (white clear oil, you can fill its smell when you
> retract/extend the gear in flight) Second, alcohol 96% Proportion,
> volume????(do not remember exact number, 100-150gr/, 50/50 ) Charging:
> Discharge air, disconnect Air tank and inject mix in line pipe, connect it
> back. (Ones you are doing this drain water condensate from the air tank)
> Charge the system with air. Then very important moment: Jack up the plane
> ,retract and extend gear few times, let this mix spread inside of the
> system. That is what I can remember 20 years later.
> But it is always better to check with manual.
>
> Vadim
>
>
--
Maybe life is not the party that we were expecting,
but in the mean time, we're here, the band is playing, so we may as well
dance....."
Douglas Sapp
Doug Sapp LLC
18B Riverview Road
Omak WA 98841
PH 509-826-4610
Fax 509-826-3644
Message 2
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Guys,
As many of you know up until 2008 one of my duties in life was to preserve
flowers (Riverview Floral LTD), primarily Gypsophila, which is a small
wildflower used mainly as a filler flower in bouquets and floral
arrangements. Without boring you with all the biology, and chemistry
involved, I'll get to the nuts and bolts of the process. We normally would
use 5 to 7000 gallons of USP grade Glycerine annually. Glycerine is both a
humectant (absorbs water), and a plasticizer which lends flexibility to the
product once introduced into the cellular structure of the plant.
Alcohol also has the ability to absorb moisture, so the use of these two
items in limited amounts in the pneumatic system should be a good thing
unless we have an 0 ring incompatibility problem with the Ethyl alcohol.
Glycerine is inert, so no worries there. I say "limited quantities"
because many of the gear actuators which I have been getting in for cores
have most if not all of the high pressure grease washed out of them because
of over lubrication with light machine or tool oil which was incorrectly
injected into the system.
Do NOT mess with Methyl alcohol, it's very bad stuff, nerve damage,
blindness, are only a few of the problems associated with the use of this
chemical.
I have a limited amount of US Pharmaceutical Grade Glycerine which could be
decanted into gallon jugs (it's in 55 gallon drums now). Price is about
$25.00 per gallon. Weight is 10.41 pounds per gallon.
Always Yakin,
Doug
On Sun, Feb 14, 2010 at 11:22 PM, Jan Mevis <jan.mevis@informavia.be> wrote:
>
> The product originally used by the Russians (sixties/seventies of the
> former
> century) is not available anymore, and its content is unknown. What the
> Russians and the Lithuanians advise now, is a 50/50 volume mixture of very
> clean glycerine and 96% ethylalcohol, only a few cubic centimeters per
> actuator. The Russians started using this mixture in the eighties and they
> loved doing this work, because they could order somewhat more ethylalcohol
> and use it for their own home-made wodka (at least this has been told to me
> by a Russian mechanic).
>
> The Russian and Lithuanian mechanics insert it straight into the actuators,
> using an injection needle and at the same time pumping with the gear leg to
> suck it in.
>
> Jan RA2005K YK50
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Martin (Home)
> Sent: zondag 14 februari 2010 3:01
> To: yak-list@matronics.com
> Subject: Yak-List: Pneumatics
>
>
>
> What have most of you been using for lubricating oil?
>
> Martin Mattes
>
>
> Re: Regarding winterizing I meant charging pneumatic system with
> alcohol-oil
>
> mix for winter cold proofin
>
> You have to check with Yak 52 maintenance manual first.
> I did it but it was long time ago (more then 20 years) and I may be wrong
> at
>
> some points. Procedure is the same when you are doing regular maintenance
> check. First, this should be special lubricant which pneumatic system is
> usually charged with (white clear oil, you can fill its smell when you
> retract/extend the gear in flight) Second, alcohol 96% Proportion,
> volume????(do not remember exact number, 100-150gr/, 50/50 ) Charging:
> Discharge air, disconnect Air tank and inject mix in line pipe, connect it
> back. (Ones you are doing this drain water condensate from the air tank)
> Charge the system with air. Then very important moment: Jack up the plane
> ,retract and extend gear few times, let this mix spread inside of the
> system. That is what I can remember 20 years later.
> But it is always better to check with manual.
>
> Vadim
>
>
--
Maybe life is not the party that we were expecting,
but in the mean time, we're here, the band is playing, so we may as well
dance....."
Douglas Sapp
Doug Sapp LLC
18B Riverview Road
Omak WA 98841
PH 509-826-4610
Fax 509-826-3644
Message 3
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That is absolutely correct, Doug: pharmaceutical grade glycerine and VERY
EXPENSIVE ethylalcohol (very expensive in Europe because of the taxes). But
you don't need much. I also concur with what you state about "over"
lubrication. Only two cubic centimeters per actuator. And absolutely no
METHYLalcohol.
Jan
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of doug sapp
Sent: maandag 15 februari 2010 5:27
Subject: Re: Yak-List: Pneumatics
Guys,
As many of you know up until 2008 one of my duties in life was to preserve
flowers (Riverview Floral LTD), primarily Gypsophila, which is a small
wildflower used mainly as a filler flower in bouquets and floral
arrangements. Without boring you with all the biology, and chemistry
involved, I'll get to the nuts and bolts of the process. We normally would
use 5 to 7000 gallons of USP grade Glycerine annually. Glycerine is both a
humectant (absorbs water), and a plasticizer which lends flexibility to the
product once introduced into the cellular structure of the plant.
Alcohol also has the ability to absorb moisture, so the use of these two
items in limited amounts in the pneumatic system should be a good thing
unless we have an 0 ring incompatibility problem with the Ethyl alcohol.
Glycerine is inert, so no worries there. I say "limited quantities" because
many of the gear actuators which I have been getting in for cores have most
if not all of the high pressure grease washed out of them because of over
lubrication with light machine or tool oil which was incorrectly injected
into the system.
Do NOT mess with Methyl alcohol, it's very bad stuff, nerve damage,
blindness, are only a few of the problems associated with the use of this
chemical.
I have a limited amount of US Pharmaceutical Grade Glycerine which could be
decanted into gallon jugs (it's in 55 gallon drums now). Price is about
$25.00 per gallon. Weight is 10.41 pounds per gallon.
Always Yakin,
Doug
On Sun, Feb 14, 2010 at 11:22 PM, Jan Mevis <jan.mevis@informavia.be> wrote:
The product originally used by the Russians (sixties/seventies of the former
century) is not available anymore, and its content is unknown. What the
Russians and the Lithuanians advise now, is a 50/50 volume mixture of very
clean glycerine and 96% ethylalcohol, only a few cubic centimeters per
actuator. The Russians started using this mixture in the eighties and they
loved doing this work, because they could order somewhat more ethylalcohol
and use it for their own home-made wodka (at least this has been told to me
by a Russian mechanic).
The Russian and Lithuanian mechanics insert it straight into the actuators,
using an injection needle and at the same time pumping with the gear leg to
suck it in.
Jan RA2005K YK50
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Martin (Home)
Sent: zondag 14 februari 2010 3:01
Subject: Yak-List: Pneumatics
What have most of you been using for lubricating oil?
Martin Mattes
Re: Regarding winterizing I meant charging pneumatic system with alcohol-oil
mix for winter cold proofin
You have to check with Yak 52 maintenance manual first.
I did it but it was long time ago (more then 20 years) and I may be wrong at
some points. Procedure is the same when you are doing regular maintenance
check. First, this should be special lubricant which pneumatic system is
usually charged with (white clear oil, you can fill its smell when you
retract/extend the gear in flight) Second, alcohol 96% Proportion,
volume????(do not remember exact number, 100-150gr/, 50/50 ) Charging:
Discharge air, disconnect Air tank and inject mix in line pipe, connect it
back. (Ones you are doing this drain water condensate from the air tank)
Charge the system with air. Then very important moment: Jack up the plane
,retract and extend gear few times, let this mix spread inside of the
system. That is what I can remember 20 years later.
But it is always better to check with manual.
Vadim
rget="_blank">http://www.matronics.com/Navigator?Yak-List
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="_blank">http://www.matronics.com/contribution
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--
Maybe life is not the party that we were expecting,
but in the mean time, we're here, the band is playing, so we may as well
dance....."
Douglas Sapp
Doug Sapp LLC
18B Riverview Road
Omak WA 98841
PH 509-826-4610
Fax 509-826-3644
Message 4
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Jill, please contact me off list about the possiblity of rebuilding my spar
e stock 285 motor for my CJ.=C2- Thanks Jon
Message 5
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| Subject: | Re: F-4 Ejection Barstool | Motoart |
Doc this would go great in my fighter bar but I fear I may need a loan from
you.=0A=0A=0A=0A=0A________________________________=0AFrom: Roger Kemp M.D
. <viperdoc@mindspring.com>=0ATo: yak-list@matronics.com=0ASent: Sun, Febru
ary 14, 2010 9:28:48 PM=0ASubject: Yak-List: F-4 Ejection Barstool | Motoar
t=0A=0A=0AAnybody looking for an addition to their Hangers, office, or home
man cave?=0ADoc=0A-=0Ahttp://www.motoart.com/seating/chairs/f-4-ejection
-========================
====================0A=0A=0A
Message 6
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| Subject: | F-4 Ejection Barstool | Motoart |
Thought about them for a Hanger Bar for when the Beer light is lit but
Obama
is systematically cleaning me out! After this 21% cut coming 1 Mar,
I=92m
going to be looking for an old stool to sip my suds from a boot on!
That=92s
going to be about all I can afford for hanger d=E9cor! There goes the
new
briefing room and bar that was planned for with self help this year!
As long as I can feed and water my YAKs life will be tolerable even if
it
means life without the new squadron bar!
Doc
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Paul Hamlin
Sent: Monday, February 15, 2010 3:25 PM
Subject: Re: Yak-List: F-4 Ejection Barstool | Motoart
Doc this would go great in my fighter bar but I fear I may need a loan
from
you.
_____
From: Roger Kemp M.D. <viperdoc@mindspring.com>
Sent: Sun, February 14, 2010 9:28:48 PM
Subject: Yak-List: F-4 Ejection Barstool | Motoart
Anybody looking for an addition to their Hangers, office, or home man
cave?
Doc
http://www.motoart.com/seating/chairs/f-4-ejection-barstool
Message 7
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| Subject: | F-4 Ejection Barstool | Motoart |
Thought about them for a Hanger Bar for when the Beer light is lit but
Obama
is systematically cleaning me out! After this 21% cut coming 1 Mar,
I=92m
going to be looking for an old stool to sip my suds from a boot on!
That=92s
going to be about all I can afford for hanger d=E9cor! There goes the
new
briefing room and bar that was planned for with self help this year!
As long as I can feed and water my YAKs life will be tolerable even if
it
means life without the new squadron bar!
Doc
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Paul Hamlin
Sent: Monday, February 15, 2010 3:25 PM
Subject: Re: Yak-List: F-4 Ejection Barstool | Motoart
Doc this would go great in my fighter bar but I fear I may need a loan
from
you.
_____
From: Roger Kemp M.D. <viperdoc@mindspring.com>
Sent: Sun, February 14, 2010 9:28:48 PM
Subject: Yak-List: F-4 Ejection Barstool | Motoart
Anybody looking for an addition to their Hangers, office, or home man
cave?
Doc
http://www.motoart.com/seating/chairs/f-4-ejection-barstool
Message 8
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| Subject: | Re: Engine rebuild |
I have 2... let us know on the list.
thanks
Mike
--------
Mike "Skidmk" Bourget
Ottawa, Ontario
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=286583#286583
Message 9
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G'Day All,
I found all the postings re the pneumatics to be extremely interesting
and of good value.
Doug's article is excellent.
Goes to show, it does not matter how ald one is, one learns every day.
Thanks.
Cheers, Chris.
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