Today's Message Index:
----------------------
1. 12:22 AM - Yak 52 canopy glass replacement (rosslferguson@gmail.com)
2. 04:39 AM - Re: CJ-6 canopy seals (Rich Langer)
3. 07:00 AM - Conclusion to the Engine out question (Bradly Banks)
4. 10:41 AM - Re: Yak 52 canopy glass replacement (George Coy)
5. 01:23 PM - Re: CJ-6 canopy seals (keithmckinley)
6. 01:24 PM - Re: Yak 52 canopy glass replacement (Ross Ferguson)
7. 05:03 PM - Re: Conclusion to the Engine out question (Roger Kemp M.D.)
Message 1
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| Subject: | Yak 52 canopy glass replacement |
I am planning to replace the canopy glass on my Yak52. Has anyone tackled this
project? I have heard bits and pieces of advice. Has anyone done a write up
on this project? I have heard it is essential to build a jig. Does anyone have
pictures of what they used?
Thanks
Message 2
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| Subject: | Re: CJ-6 canopy seals |
Harv, I would very much like to know the part number from Woolies for the replacement
canopy seal.
Thanks Rich
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=374522#374522
Message 3
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| Subject: | Conclusion to the Engine out question |
Hello All, I have finally been able to conclude the reason for the forced
landing of ZU-CWJ here are the pics
The oil pump and Fuel pump are driven of the accessory bevel gear at the
back of the engine, this drive shaft has 2 bevel gears and is held in place
by a bronze bush. This bush sets up the lash on the main bevel gear and
(please correct me here) the tacho drive too.
In the pics you will see that the Bronze bush has been polished where the
Locking plate has been vibrating , the lock tabs are all up as should be but
they have now been worn oval and have split allowing the 2 nuts to "jump"
flats .
This in turn gradually increased the lash on the main bevel drive (creating
a faint whine audible off the adjacent hanger doors on idle or shut down.)
Finally the nuts escaped their locking tabs and as we removed the oil pump
assembly the one nut dropped into the drip tray. The other was 1 turn from
following the first.
Conclusion :
The loosening of the 2 nuts created a gap in the lash where the drive gear
could no longer drive the driven gear and as a result the oil and fuel pump
ceased to turn thus the engine ran out of fuel.
It is not difficult to inspect the retaining nuts , but it will require the
removal of the oil pump / fuel pump assembly.
Hope this will help
Final thought :
The contributors to this forum were unanimously correct that the engine must
have run out of fuel and I'm encouraged to see the vast amount of collective
knowledge we have to draw on.
"Yak engines don't just stop", was the AME's first words to me during the
recovery , I agree with him they are tough and reliable , no matter how you
look at it ,when the fuel runs out, that engine isn't gonna run!
Bradly Banks
Cell:0825083200
Tel :0333308580
Email :brad@runawaymedia.co.za
Skype: brad.banks10
Message 4
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| Subject: | Yak 52 canopy glass replacement |
We have done it many times. The key is to make a jig for the frame so
whenyou reassemble it will fit.
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of
rosslferguson@gmail.com
Sent: Saturday, June 02, 2012 3:01 AM
Subject: Yak-List: Yak 52 canopy glass replacement
I am planning to replace the canopy glass on my Yak52. Has anyone tackled
this project? I have heard bits and pieces of advice. Has anyone done a
write up on this project? I have heard it is essential to build a jig. Does
anyone have pictures of what they used?
Thanks
Message 5
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| Subject: | Re: CJ-6 canopy seals |
he rivets in question do not go through any plexiglass and can be drilled out with
the glass in place.
K
--------
Keith McKinley
700HS
KFIT
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=374550#374550
Message 6
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| Subject: | Yak 52 canopy glass replacement |
Do you have a picture of the jig?
On Jun 2, 2012 10:44 AM, "George Coy" <george.coy@gmail.com> wrote:
>
> We have done it many times. The key is to make a jig for the frame so
> whenyou reassemble it will fit.
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of
> rosslferguson@gmail.com
> Sent: Saturday, June 02, 2012 3:01 AM
> To: yak-list@matronics.com
> Subject: Yak-List: Yak 52 canopy glass replacement
>
>
> I am planning to replace the canopy glass on my Yak52. Has anyone tackled
> this project? I have heard bits and pieces of advice. Has anyone done a
> write up on this project? I have heard it is essential to build a jig.
> Does
> anyone have pictures of what they used?
>
> Thanks
>
>
Message 7
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| Subject: | Re: Conclusion to the Engine out question |
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