Today's Message Index:
----------------------
1. 07:20 AM - CJ6 prop reversal (Okanogan Lew)
2. 07:46 AM - Re: Hose replacement Yak 52 (George Coy)
3. 08:13 AM - Re: CJ6 prop reversal (Paul Lewis)
4. 11:11 AM - Re: CJ6 prop reversal (Walter Lannon)
5. 11:32 AM - Re: CJ6 prop reversal (Walter Lannon)
6. 04:12 PM - Re: CJ6 prop reversal (Paul Lewis)
7. 10:00 PM - Re: CJ6 prop reversal (Gary Gabbard)
Message 1
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| Subject: | CJ6 prop reversal |
Guys, during my last 5-6 flights, while shutting down the engine, twice it has
reversed the direction & has turned 3-4 blades before stopping. Has anyone else
had this experience & I wonder what is causing it & if there is damaged being
done? I have flown about 60 hrs in this plane & this is the first time this
has happened. I do run ethanol free auto fuel with occasional av gas & MMO.
My shut down procedure is to run the engine up to 1600 rpm for about 15 secs,
bring it to idle & turn off the mags. Should I be bringing the mixture to lean
before shutting off the mags? This is a stock 285 HP engine, Thanks for
any advice.
Paul Lewis
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=384838#384838
Message 2
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| Subject: | Hose replacement Yak 52 |
Chris, We can supply new manufactured Russian hose. You would have to re-use
your existing hose ends. Contact off list for more info.
George Coy
CAS Ltd.
714 Airport Rd.
Swanton VT 05488
802-868-5633 off
802-363-5782 cell
802-868-4465 Fax
george.coy@gmail.com
http://coyafct.com/
SKYPE george.coy
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of CHRIS ABBOTT
Sent: Sunday, October 07, 2012 2:07 AM
Subject: Yak-List: Hose replacement Yak 52
Does anyone know the best deal on hose replacement or can the hose be
purchased to enable me to get done in Aussie ?
Thank you,
CHRIS ABBOTT
Message 3
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| Subject: | Re: CJ6 prop reversal |
An important point I forgot, is that I do have the auto spark plug
conversion.
Paul
On Sun, Oct 7, 2012 at 7:17 AM, Okanogan Lew <vplewis@community.org> wrote:
>
> Guys, during my last 5-6 flights, while shutting down the engine, twice it
> has reversed the direction & has turned 3-4 blades before stopping. Has
> anyone else had this experience & I wonder what is causing it & if there is
> damaged being done? I have flown about 60 hrs in this plane & this is the
> first time this has happened. I do run ethanol free auto fuel with
> occasional av gas & MMO. My shut down procedure is to run the engine up to
> 1600 rpm for about 15 secs, bring it to idle & turn off the mags. Should I
> be bringing the mixture to lean before shutting off the mags? This is a
> stock 285 HP engine, Thanks for any advice.
>
> Paul Lewis
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=384838#384838
>
>
Message 4
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| Subject: | Re: CJ6 prop reversal |
Paul;
Since there is no idle cut-off system in the carb. ignition cut-out is
the only method available. This is basically the same process that I
recall from the days of C65=99s, etc. but with the advantage at
least of a CHT guage.
The process I use for the Huosai or the M14P is Fine pitch, 1500 RPM for
exactly one minute (time and RPM could vary but should be the same at
each shut-down to facilitate oil scavenge and give a reliable basis for
measuring oil consumption), Prop lever to coarse pitch, Wait for min.
RPM and max. MP, Throttle to idle, Check for CHT below 140 deg.C, Switch
off.
The Chinese manual adds another action which was standard and absolutely
necessary in the C65 days. That is : Throttle slowly to full Open with
switch closure.
I think your problem is not enough cylinder cooling time. Whether auto
plugs would be more prone to after fire I don=99t know.
Hope that helps;
Walt
From: Paul Lewis
Sent: Sunday, October 07, 2012 8:11 AM
Subject: Re: Yak-List: CJ6 prop reversal
An important point I forgot, is that I do have the auto spark plug
conversion.
Paul
On Sun, Oct 7, 2012 at 7:17 AM, Okanogan Lew <vplewis@community.org>
wrote:
Guys, during my last 5-6 flights, while shutting down the engine,
twice it has reversed the direction & has turned 3-4 blades before
stopping. Has anyone else had this experience & I wonder what is
causing it & if there is damaged being done? I have flown about 60 hrs
in this plane & this is the first time this has happened. I do run
ethanol free auto fuel with occasional av gas & MMO. My shut down
procedure is to run the engine up to 1600 rpm for about 15 secs, bring
it to idle & turn off the mags. Should I be bringing the mixture to
lean before shutting off the mags? This is a stock 285 HP engine,
Thanks for any advice.
Paul Lewis
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=384838#384838
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Message 5
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| Subject: | Re: CJ6 prop reversal |
A point that I forgot to mention: - Open gills for maximum cylinder
cooling!
Walt
From: Paul Lewis
Sent: Sunday, October 07, 2012 8:11 AM
Subject: Re: Yak-List: CJ6 prop reversal
An important point I forgot, is that I do have the auto spark plug
conversion.
Paul
On Sun, Oct 7, 2012 at 7:17 AM, Okanogan Lew <vplewis@community.org>
wrote:
Guys, during my last 5-6 flights, while shutting down the engine,
twice it has reversed the direction & has turned 3-4 blades before
stopping. Has anyone else had this experience & I wonder what is
causing it & if there is damaged being done? I have flown about 60 hrs
in this plane & this is the first time this has happened. I do run
ethanol free auto fuel with occasional av gas & MMO. My shut down
procedure is to run the engine up to 1600 rpm for about 15 secs, bring
it to idle & turn off the mags. Should I be bringing the mixture to
lean before shutting off the mags? This is a stock 285 HP engine,
Thanks for any advice.
Paul Lewis
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=384838#384838
==========
rget="_blank">http://www.matronics.com/Navigator?Yak-List
==========
http://forums.matronics.com
==========
le, List Admin.
="_blank">http://www.matronics.com/contribution
==========
Message 6
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| Subject: | Re: CJ6 prop reversal |
Thanks Walt, I pulled a plug (NGK BR5HS) & it looked black, but not oily or
sooty.
Paul
On Sun, Oct 7, 2012 at 11:30 AM, Walter Lannon <wlannon@shaw.ca> wrote:
> A point that I forgot to mention: - Open gills for maximum cylinder
> cooling!
>
> Walt
>
> *From:* Paul Lewis <okanoganlew@gmail.com>
> *Sent:* Sunday, October 07, 2012 8:11 AM
> *To:* yak-list@matronics.com
> *Subject:* Re: Yak-List: CJ6 prop reversal
>
> An important point I forgot, is that I do have the auto spark plug
> conversion.
>
> Paul
>
> On Sun, Oct 7, 2012 at 7:17 AM, Okanogan Lew <vplewis@community.org>wrote:
>
>>
>> Guys, during my last 5-6 flights, while shutting down the engine, twice
>> it has reversed the direction & has turned 3-4 blades before stopping. Has
>> anyone else had this experience & I wonder what is causing it & if there is
>> damaged being done? I have flown about 60 hrs in this plane & this is the
>> first time this has happened. I do run ethanol free auto fuel with
>> occasional av gas & MMO. My shut down procedure is to run the engine up to
>> 1600 rpm for about 15 secs, bring it to idle & turn off the mags. Should I
>> be bringing the mixture to lean before shutting off the mags? This is a
>> stock 285 HP engine, Thanks for any advice.
>>
>> Paul Lewis
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=384838#384838
>>
>>
>>
>>
>>
>>
>>
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>> rget="_blank">http://www.matronics.com/Navigator?Yak-List
>> ==========
>> http://forums.matronics.com
>> ==========
>> le, List Admin.
>> ="_blank">http://www.matronics.com/contribution
>> ==========
>>
>>
>>
>>
> *
>
> href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/Navigator?Yak-List
> href="http://forums.matronics.com">http://forums.matronics.com
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>
Message 7
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| Subject: | Re: CJ6 prop reversal |
Paul, Gary Gabbard (CJ N22YK) here, I have a suggestion on the kick back pro
blem. What is the RPM when you have the throttle closed and the idle stabili
zes? If it is a low idle speed you might adjust the idle RPM up a 100 RPM. I
have had engines that would kick back on shut down. By adjusting the idle u
p a little higher it stopped. Reason is that if the throttle plate in the ca
rb. throat is completely closed it will cause fuel to be drawn up the intake
by the low pressure in the intake manifold. By adjusting the idle up a bit
it leaves the throttle plate a bit open and reduces the suction of fuel up i
nto the cyls. No fuel, no kick back. It is worth a try. Let us know how it g
oes. Gary
Sent from my iPhone
On Oct 7, 2012, at 16:09, Paul Lewis <okanoganlew@gmail.com> wrote:
> Thanks Walt, I pulled a plug (NGK BR5HS) & it looked black, but not oily o
r sooty.
>
> Paul
>
> On Sun, Oct 7, 2012 at 11:30 AM, Walter Lannon <wlannon@shaw.ca> wrote:
>> A point that I forgot to mention: - Open gills for maximum cylinder cool
ing!
>>
>> Walt
>>
>> From: Paul Lewis
>> Sent: Sunday, October 07, 2012 8:11 AM
>> To: yak-list@matronics.com
>> Subject: Re: Yak-List: CJ6 prop reversal
>>
>> An important point I forgot, is that I do have the auto spark plug conver
sion.
>>
>> Paul
>>
>> On Sun, Oct 7, 2012 at 7:17 AM, Okanogan Lew <vplewis@community.org> wrot
e:
>>>
>>> Guys, during my last 5-6 flights, while shutting down the engine, twice i
t has reversed the direction & has turned 3-4 blades before stopping. Has a
nyone else had this experience & I wonder what is causing it & if there is d
amaged being done? I have flown about 60 hrs in this plane & this is the fi
rst time this has happened. I do run ethanol free auto fuel with occasional
av gas & MMO. My shut down procedure is to run the engine up to 1600 rpm f
or about 15 secs, bring it to idle & turn off the mags. Should I be bringin
g the mixture to lean before shutting off the mags? This is a stock 285 HP e
ngine, Thanks for any advice.
>>>
>>> Paul Lewis
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=384838#384838
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> ==========
>>> rget="_blank">http://www.matronics.com/Navigator?Yak-List
>>> ==========
>>> http://forums.matronics.com
>>> ==========
>>> le, List Admin.
>>> ="_blank">http://www.matronics.com/contribution
>>> ==========
>>
>>
>>
>> href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics
.com/Navigator?Yak-List
>> href="http://forums.matronics.com">http://forums.matronics.com
>> href="http://www.matronics.com/contribution">http://www.matronics.com/c
>>
>>
>> et="_blank">http://www.matronics.com/Navigator?Yak-List
>> tp://forums.matronics.com
>> _blank">http://www.matronics.com/contribution
>>
>
>
>
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