Today's Message Index:
----------------------
1. 08:11 AM - Nanchang Air Gremlins (Byron Fox)
2. 02:33 PM - strange behavior of braking system (tigeryak18t)
3. 02:44 PM - Yak spare parts (tigeryak18t)
4. 07:24 PM - One of those moments (Barry Hancock)
5. 07:46 PM - Re: Yak spare parts (Roger Kemp M.D.)
6. 09:05 PM - Re: One of those moments (Roger Kemp M.D.)
7. 11:52 PM - Re: One of those moments (Jim Selby)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Nanchang Air Gremlins |
Happy Halloween!
Recently, partner Brian and I heard a hissing sound coming from our front
seat gear handle/valve. Oh well, order a new from Doug Sapp. It arrived and
we installed it on Thursday. We recharged the system, and damn, the same
hissing was escaping the valve! What the devil was going on? Well, Brian
quickly discovered that the air was coming from the two small ports on the
bottom of the valve. You know, those ones through which air erupts when you
raise or lower the gear.
Hmmm. What's the likelihood of having two bad gear valves? Not very likely.
So, we called Doug. He pondered for a moment and then suggested that we
check each of our gear actuators to determine if downside air was bleeding
by one of the actuator rams and migrating along the upside air line back to
the valve. Good idea. Did that by successively capping off each actuator.
And guess what? All three were sound, and that bloody air poltergeist was
still hissing merrily away. Notice how the amateur mechanic will tend to
animate troublesome inanimate objects.
OK, after I had regained my equanimity, I sat down to study our enlarged,
plastic laminated, CJ pneumatic system diagram. (A thoughtful gift from Dave
King) Soon, it became clear that the front seat gear valve gets its air
from the controlling back seat valve, where the instructor would sit. Makes
sense. It was time to experiment. Up on jacks, I put the front seat gear
handle in the neutral position and the back seat handle down. Same hissing
but now from the back gear valve. Gear up, the hissing all but disappears.
One more bit of information - the back seat gear handle was extraordinarily
stiff and hard to move most likely because it gets cycled once a year during
the annual inspection.
My conclusion is that the gremlin lives in the back seat gear valve. For all
I know, it's probably been in the airplane since 1968 and has corroded
accounting for its stiffness. So, a new one is on its way, and we'll see if
I'm right.
In the mean time, do any of you vastly more experience folks have any other
ideas?
Many thanks,
Blitz
Byron M. Fox
80 Milland Drive
Mill Valley, CA 94941
415-307-2405
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | strange behavior of braking system |
Hello to all,
first of all I must tell you that I had a very good day together with my friend
Christophe Bourillon owner of a superb YAK18T (see the picture attached). As
you can see the weather in Normandy France, was.....not very good today but we,
yakees, use to fly nearly anytime...that's a joke of course. If you read this
Christophe thanks for this very nice day.
My question is regarding the 52 braking system. Sometime, with not any particular
reason, when I try to brake after landing and during taxying, I pull the brake
and nothing happen. I can hear the hiss of air but no braking (or very inneficient)
then after pumping a few time braking comes back. I was wondering if
this could have any link with the Brake Reduction Valve or anything else??
Has anyone experimented such behavior?
Thanks for your help
Didier 18T HA-JAC
52 RA1006K
--------
Didier Tiger YAK18T
Member of Commemorative Air Force
French Wing
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=270265#270265
Attachments:
http://forums.matronics.com//files/img_0753_123.jpg
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Hello again
these questions will probably find an answer with Deniss, but any help is very
welcome.
1)I am looking for the "carburator diaphragm". Where can I find one or two and
is it a part difficult to replace?
2)Do you know if it is possible to add a Tee for inflating both the main system
and the emergency system? (I saw that in a 52)
3)Deniss I forgot to whom shall I ask for the prop seal kit??? could you please
have the kindness to tell me who??
4)I have fluctuations in my gauges indications. It seems that it could come from
the floatters. Do you know if it is possible ti find these foam floatters or
to repair it or to find the gauges (picture are attached)
Thanks so much to all for any hints and tips.
Kind regards
Didier HA-JAC
RA 1006K
--------
Didier Tiger YAK18T
Member of Commemorative Air Force
French Wing
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=270268#270268
Attachments:
http://forums.matronics.com//files/img_0938_831.jpg
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | One of those moments |
Just arrived at Provo with this bird on the way to deliver it to the
Canadian Warplane Heritage Museum. Was walking away from the plane
after a 3:45 flight when I noticed the fleeting sunset...
For you CJ officionados this first pic really highlights our exclusive
one piece rear canopy...
DSC_0067
Plane runs terrific and is squawk free. After recreating the Chinese
military demo team scheme and all the detail/mod work, I hate to see
it go. But at least it will have a visible home and keep flying!
Will be pressing on to Hamilton, Ontario starting Monday. I'm trying
to update the blog as we go.... http://worldwidewarbirds.blogspot.com/
Barry Hancock
Worldwide Warbirds, Inc.
www.worldwidewarbirds.com
(909) 606-4444 office
(949) 300-5510 cell
"The complete center for warbird excellence"
Express Mailing address:
7000 Merrill Ave, B-110, Unit J
Chino, CA 91710
Regular Mailing address:
7000 Merrill Ave., Box 91
Chino, CA 91710
The information contained in this e-mail message is intended only for
the personal and confidential use of the designated recipients. If the
reader of this message is not an intended recipient, you are hereby
notified that any review, use, dissemination, forwarding or copying of
this message is strictly prohibited. Please notify us immediately by
reply e-mail or telephone, and delete the original message and all
attachments from your system. Thank you
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Didier,
A couple of Answers. West London Aero Club has the diaphragms, air refill
adapter, and prop seal kits. The URL is http://www.wlacrussianeng.co.uk
As for your brake issues, is this occurring after hard braking or a long
taxi with frequent application of the brakes. If so you are experiencing
brake fade due to the drums/shoes heating up. You can also have a felt seal
on the wheel bearing leaking grease into the drum causing brake failure.
Glazed brake pads will cause weak braking also. Brakes pulling to one side
and being weak can mean grease on the shoes, glazed shoes, and leaking brake
line off the top of my head.
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of tigeryak18t
Sent: Saturday, October 31, 2009 4:42 PM
Subject: Yak-List: Yak spare parts
Hello again
these questions will probably find an answer with Deniss, but any help is
very welcome.
1)I am looking for the "carburator diaphragm". Where can I find one or two
and is it a part difficult to replace?
2)Do you know if it is possible to add a Tee for inflating both the main
system and the emergency system? (I saw that in a 52)
3)Deniss I forgot to whom shall I ask for the prop seal kit??? could you
please have the kindness to tell me who??
4)I have fluctuations in my gauges indications. It seems that it could come
from the floatters. Do you know if it is possible ti find these foam
floatters or to repair it or to find the gauges (picture are attached)
Thanks so much to all for any hints and tips.
Kind regards
Didier HA-JAC
RA 1006K
--------
Didier Tiger YAK18T
Member of Commemorative Air Force
French Wing
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=270268#270268
Attachments:
http://forums.matronics.com//files/img_0938_831.jpg
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | One of those moments |
Good looking bird for a Cj that is. :>))
Doc
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Barry Hancock
Sent: Saturday, October 31, 2009 9:09 PM
Subject: Yak-List: One of those moments
Just arrived at Provo with this bird on the way to deliver it to the
Canadian Warplane Heritage Museum. Was walking away from the plane after a
3:45 flight when I noticed the fleeting sunset...
For you CJ officionados this first pic really highlights our exclusive one
piece rear canopy...
DSC_0067
Plane runs terrific and is squawk free. After recreating the Chinese
military demo team scheme and all the detail/mod work, I hate to see it go.
But at least it will have a visible home and keep flying!
Will be pressing on to Hamilton, Ontario starting Monday. I'm trying to
update the blog as we go.... http://worldwidewarbirds.blogspot.com/
Barry Hancock
Worldwide Warbirds, Inc.
www.worldwidewarbirds.com
(909) 606-4444 office
(949) 300-5510 cell
"The complete center for warbird excellence"
Express Mailing address:
7000 Merrill Ave, B-110, Unit J
Chino, CA 91710
Regular Mailing address:
7000 Merrill Ave., Box 91
Chino, CA 91710
The information contained in this e-mail message is intended only for the
personal and confidential use of the designated recipients. If the reader of
this message is not an intended recipient, you are hereby notified that any
review, use, dissemination, forwarding or copying of this message is
strictly prohibited. Please notify us immediately by reply e-mail or
telephone, and delete the original message and all attachments from your
system. Thank you
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: One of those moments |
Barry,
The CJ looks Great, nice photos. Have a safe flight home.
Best Regards
Jim
----- Original Message -----
From: Barry Hancock
To: yak-list@matronics.com
Sent: Saturday, October 31, 2009 7:08 PM
Subject: Yak-List: One of those moments
Just arrived at Provo with this bird on the way to deliver it to the
Canadian Warplane Heritage Museum. Was walking away from the plane
after a 3:45 flight when I noticed the fleeting sunset...
For you CJ officionados this first pic really highlights our exclusive
one piece rear canopy...
DSC_0067
Plane runs terrific and is squawk free. After recreating the Chinese
military demo team scheme and all the detail/mod work, I hate to see it
go. But at least it will have a visible home and keep flying!
Will be pressing on to Hamilton, Ontario starting Monday. I'm trying
to update the blog as we go.... http://worldwidewarbirds.blogspot.com/
Barry Hancock
Worldwide Warbirds, Inc.
www.worldwidewarbirds.com
(909) 606-4444 office
(949) 300-5510 cell
"The complete center for warbird excellence"
Express Mailing address:
7000 Merrill Ave, B-110, Unit J
Chino, CA 91710
Regular Mailing address:
7000 Merrill Ave., Box 91
Chino, CA 91710
The information contained in this e-mail message is intended only for
the personal and confidential use of the designated recipients. If the
reader of this message is not an intended recipient, you are hereby
notified that any review, use, dissemination, forwarding or copying of
this message is strictly prohibited. Please notify us immediately by
reply e-mail or telephone, and delete the original message and all
attachments from your system. Thank you
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|