Today's Message Index:
----------------------
1. 12:41 AM - Re: Tail wheel oleo (Frank Stelwagon)
2. 12:58 AM - Re: tailwheel oleo Yak 50 (Hans Oortman)
3. 01:53 PM - CJ gear air line restrictor (keithmckinley)
4. 01:59 PM - CJ Mag question (keithmckinley)
5. 02:58 PM - Re: CJ Mag question (A. Dennis Savarese)
6. 03:12 PM - Re: CJ gear air line restrictor (A. Dennis Savarese)
7. 05:48 PM - Re: CJ gear air line restrictor (keithmckinley)
8. 05:53 PM - Re: CJ Mag question (keithmckinley)
9. 10:53 PM - Re: CJ Mag question (Walter Lannon)
Message 1
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| Subject: | Re: Tail wheel oleo |
Find a shop that overhauls hydraulic cylinders and have them hard chrome
the inside of the strut then hone it back to the standard size.
Frank CJ6-A
Message 2
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| Subject: | Re: tailwheel oleo Yak 50 |
Jan,
Kun je geen nieuwe cilinder laten draaien of de bestaande cilinder
uitdraaien tot de beschadiging weg is en daarna laten verchromen/harden??
Hans O.
Op 06-08-13 08:54, Jan Mevis <jan.mevis@informavia.be> schreef:
> Once again, all pressure gone. This is not an uncommon problem on the Yak
50.
>
> I had it overhauled some years ago, new seals =8A
>
> It worked well for about two years, now I have to repressurize again and
again
> and the cycle becomes shorter.
>
> So I took it out and opened it.
>
> The seals are still good, but there's a scratch at the inside of the cyli
nder
> so no wonder the nitrogen escapes.
>
> The scratch was caused by a tiny little screw that's supposed to block a
plate
> on the piston, to hold the layers of seals.
>
> The screw had a sharp edge =8A
>
> This oleo is almost impossible to find. There are none available in Russi
a
> anymore, that's for sure.
>
> I don't know if honing the cylinder is a good idea, since it's rather thi
n and
> I can't tell how deep the scratch is.
>
> A few years ago, I tried to put a spring inside the oleo, but that's very
bad:
> it behaves completely different and is too hard on the connection of the
oleo
> to the tail.
>
> My Russian inspector at that time, Sergei Makarov, said that the spring
> resonated and that it hammered too hard on the tail connection.
>
> What do you guys suggest?
>
>
> Jan
> Yak 50 F-AZUK
>
>
>
>
>
>
>
>
>
>
Message 3
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| Subject: | CJ gear air line restrictor |
While doing a gear check, I noticed the left main gear moving pretty briskly compared
to the right main and the nose. A closer look revealed that the restrictor
on the air line must have gotten "lost" by the mechanic who did the last annual.
The restrictor on my right main is on the 'up" side of the line. It seems like
the manual shows the restrictors in the "down" side line.
Would someone please clarify the correct location.
Keith
--------
Keith McKinley
700HS
X26 Sebastian, FL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=406082#406082
Message 4
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The two photos attached are of my left and right mags and the timing number stamped
on them. I believe 23 to be the correct number although the other number
on each mag looks prominent but in an area that looks like it may have been ground
down.
Comments?
--------
Keith McKinley
700HS
X26 Sebastian, FL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=406084#406084
Attachments:
http://forums.matronics.com//files/left_mag_156.jpg
http://forums.matronics.com//files/right_mag_508.jpg
Message 5
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| Subject: | Re: CJ Mag question |
Keith,
Nothing attached.
Dennis
A. Dennis Savarese
334-285-6263
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 8/6/2013 3:57 PM, keithmckinley wrote:
>
> The two photos attached are of my left and right mags and the timing number stamped
on them. I believe 23 to be the correct number although the other number
on each mag looks prominent but in an area that looks like it may have been
ground down.
>
> Comments?
>
> --------
> Keith McKinley
> 700HS
> X26 Sebastian, FL
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=406084#406084
>
>
> Attachments:
>
> http://forums.matronics.com//files/left_mag_156.jpg
> http://forums.matronics.com//files/right_mag_508.jpg
>
>
Message 6
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| Subject: | Re: CJ gear air line restrictor |
All the restrictors belong in the down side of the system on the main
side. None on the emergency down side.
Dennis
A. Dennis Savarese
334-285-6263
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 8/6/2013 3:51 PM, keithmckinley wrote:
>
> While doing a gear check, I noticed the left main gear moving pretty briskly
compared to the right main and the nose. A closer look revealed that the restrictor
on the air line must have gotten "lost" by the mechanic who did the last
annual.
>
> The restrictor on my right main is on the 'up" side of the line. It seems like
the manual shows the restrictors in the "down" side line.
>
> Would someone please clarify the correct location.
>
>
> Keith
>
> --------
> Keith McKinley
> 700HS
> X26 Sebastian, FL
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=406082#406082
>
>
Message 7
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| Subject: | Re: CJ gear air line restrictor |
Hi Dennis,
Not to sound like a dummy, but just to clarify, the down side has a "T" just prior
to the actuator. One side is normal, the other emergency air. The restrictor
goes on the normal side of the fitting on the "T".
Keith
--------
Keith McKinley
700HS
X26 Sebastian, FL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=406103#406103
Message 8
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| Subject: | Re: CJ Mag question |
that's weird, I can see the pics on the post.....I'll email them, but I hope they
show so others can have a look too. Links are below:
K
http://forums.matronics.com//files/left_mag_156.jpg
http://forums.matronics.com//files/right_mag_508.jpg
--------
Keith McKinley
700HS
X26 Sebastian, FL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=406104#406104
Message 9
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| Subject: | Re: CJ Mag question |
Keith;
I would suspect that 23 degs. is the correct number. That could change at
overhaul of the mag. depending on the spring tension, etc. of the new
auto-advance parts installed. The original 25 deg. markings should have
been obliterated to avoid confusion.
Re: The gear down restrictors; These should be at the bulkhead end of the
NORMAL gear down hose. If you have original Chinese manufactured hose the
restrictor end has a longer nut (to accommodate the restrictor!). I think
those are 0.5 mm (0.020") restrictors. However, I just got home from an
enjoyable (and well lubricated) flying club barbecue and my manuals are in
the hangar so all of the above is suspect to say the least.
Cheers;
Walt
-----Original Message-----
From: keithmckinley
Sent: Tuesday, August 06, 2013 1:57 PM
Subject: Yak-List: CJ Mag question
The two photos attached are of my left and right mags and the timing number
stamped on them. I believe 23 to be the correct number although the other
number on each mag looks prominent but in an area that looks like it may
have been ground down.
Comments?
--------
Keith McKinley
700HS
X26 Sebastian, FL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=406084#406084
Attachments:
http://forums.matronics.com//files/left_mag_156.jpg
http://forums.matronics.com//files/right_mag_508.jpg
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