Today's Message Index:
----------------------
1. 01:39 AM - Re: Carb Diaphragm for HS-6A (Richard Goode)
2. 04:43 AM - Re: Re: Noise cancelling headsets , do you wear them in a CJ or Yak? (Dr. Herbert Coussons)
3. 05:46 AM - Re: Carb Diaphragm for HS-6A (Roger Kemp)
4. 10:07 AM - Re: Carb Diaphragm for HS-6A (jay-dub)
Message 1
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| Subject: | Carb Diaphragm for HS-6A |
Yes, we unfortunate Europeans are much more tightly controlled than you
lucky guys. But categorically it is a European rule from EASA (our FAA) that
the membranes (diaphragms) have a six year calendar life.
It is fairly clear from the engine manual where they are, but to help I will
ask Aerometal, our partner in Hungary, to send me photographs of the
carburettor indicating exactly the parts that needs to be removed to change
the membranes, and I will post it on the yak-list.
With regards
Richard
RICHARD GOODE AEROBATICS
Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129
e-mail: richard.goode@russianaeros.com
www.russianaeros.com
WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES
In partnership with Aerometal Kft, Hungary.
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Walter Lannon
Sent: 22 February 2019 19:34
Subject: Re: Yak-List: Carb Diaphragm for HS-6A
Hi Richard;
Is there a Russian, or other, AWD specifying a life limit for the diaphragm?
Where is the second diaphragm located?
Thanks;
Walt
-----Original Message-----
From: Richard Goode
Sent: Friday, February 22, 2019 12:35 AM
Subject: RE: Yak-List: Carb Diaphragm for HS-6A
<richard.goode@russianaeros.com>
I agree with Mark. But if you have a diaphragm/membrane failure, then after
the engine has been shut down, leave the fuel on and the throttle slightly
open, and you will almost certainly get fuel dripping down through the
carburettor. If none comes out, then I would suspect a coil failure.
I would also make the point that, very specifically, these diaphragms (and
there are two in each carburettor) should be replaced at a maximum of every
six years.
Richard
RICHARD GOODE AEROBATICS
Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129
e-mail: richard.goode@russianaeros.com
www.russianaeros.com
WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES In partnership with
Aerometal Kft, Hungary.
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G
CIV NAVAIR, WD
Sent: 21 February 2019 20:23
Subject: Re: Yak-List: Carb Diaphragm for HS-6A
--> <mark.bitterlich@navy.mil>
May I ask why you think you need a carb diaphragm ?? The reason I ask is
simply because when one of them tears, or fails, it does not fix itself and
then you fly home.
If all of a sudden you start running very rich , etc., etc., yes. Or if the
engine stops running... as in it totally stops running .... yes, probably.
But if it stops in flight for a few moments and then starts running again...
or something like that, it could be electrical as in mag coils. That can
often be very difficult to define.
You probably know all this already, so ... sorry.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
<owner-yak-list-server@matronics.com> On Behalf Of Anthony Savarese
Sent: Thursday, February 21, 2019 1:00 PM
Subject: [Non-DoD Source] Re: Yak-List: Carb Diaphragm for HS-6A
--> <dsavarese0812@bellsouth.net>
They are definitely NOT interchangeable. Tried it many, many years ago when
I was trying to adapt the manual mixture control from the Huosai carburetor
to the M14 carburetor.
Dennis
Sent from my iPhone
> On Feb 21, 2019, at 11:18 AM, jay-dub <flyjnw@gmail.com> wrote:
>
>
> Having had a very quiet moment while airborne the other day, it is
> likely
we need a new carb diaphragm.
>
> Our maintenance organisation has a diaphragm for the AK-14P carb. We
> think
we need a QHQ-14A for the Huosai, which I will have to acquire.
>
> Are they by any chance interchangeable before I email Doug S?
>
> Thanks.
>
> --------
> CJ and Yak-52 owner
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=487724#487724
>
>
---
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Message 2
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| Subject: | Re: Noise cancelling headsets , do you wear them in a |
CJ or Yak?
2 more cents. I agree. I use Lightspeeds and love them everywhere. Excep
t the yak.
I also notice that ANR do not work properly if the seal around the ear is p
erfect.
The Bose does not fit my big ears as well - thus Lightspeed.
And if I wear glasses with thicker temple pieces over the ear it disrupts t
he seal. I have an old pair of wire frame that do not disrupt the seal.
On Feb 22, 2019, at 6:36 PM, Justin Drafts <draftsjust417@gmail.com<mailto:
draftsjust417@gmail.com>> wrote:
My 2 cents worth: I personally use my 20+ yr old David Clarks in my CJ6.
Friends who ride in the back with their Bose, etc w/ noise cancelling tell
me they develop an unpleasant throbbing.
While I use Bose & Lightspeed headsets for work (KingAirs), my DC's are ide
al for the radial monsters.
Again, my 2 cents worth-
Justin Drafts
N280NC
On Fri, Feb 22, 2019 at 8:36 PM motoadve <motoadve@racsa.co.cr<mailto:motoa
dve@racsa.co.cr>> wrote:
oadve@racsa.co.cr>>
Maybe my audio panel is the issue.
--------
www.Backcountry182.com<http://www.backcountry182.com/>
Cessna 182 P
CJ -6
Read this topic online here:
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Message 3
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| Subject: | Re: Carb Diaphragm for HS-6A |
Did you say you had a heavy smell of fuel in the cockpit when this occurred?
A carb diaphragm leak is not going to give you a smell of fuel in the cockpit during
flight, Level or aerobatic.
Sucking air will cause the engine to lean out and fail too.
So places to look are for places fuel can get into the cockpit. Also a mag coil
failing as Mark said will cause engine hesitation. It is quite impressive when
that happens. Usually 15 to 20 min into the flight and will occurs again in
15 to 20 min if the flight continues.
Doc
Sent from my iPad
> On Feb 22, 2019, at 2:35 AM, Richard Goode <richard.goode@russianaeros.com> wrote:
>
>
> I agree with Mark. But if you have a diaphragm/membrane failure, then after
> the engine has been shut down, leave the fuel on and the throttle slightly
> open, and you will almost certainly get fuel dripping down through the
> carburettor. If none comes out, then I would suspect a coil failure.
>
> I would also make the point that, very specifically, these diaphragms (and
> there are two in each carburettor) should be replaced at a maximum of every
> six years.
>
> Richard
>
> RICHARD GOODE AEROBATICS
> Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
> Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129
> e-mail: richard.goode@russianaeros.com
> www.russianaeros.com
> WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES
> In partnership with Aerometal Kft, Hungary.
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G
> CIV NAVAIR, WD
> Sent: 21 February 2019 20:23
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Carb Diaphragm for HS-6A
>
> --> <mark.bitterlich@navy.mil>
>
> May I ask why you think you need a carb diaphragm ?? The reason I ask is
> simply because when one of them tears, or fails, it does not fix itself and
> then you fly home.
>
> If all of a sudden you start running very rich , etc., etc., yes. Or if the
> engine stops running... as in it totally stops running .... yes, probably.
>
> But if it stops in flight for a few moments and then starts running again...
> or something like that, it could be electrical as in mag coils. That can
> often be very difficult to define.
>
> You probably know all this already, so ... sorry.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> <owner-yak-list-server@matronics.com> On Behalf Of Anthony Savarese
> Sent: Thursday, February 21, 2019 1:00 PM
> To: yak-list@matronics.com
> Subject: [Non-DoD Source] Re: Yak-List: Carb Diaphragm for HS-6A
>
> --> <dsavarese0812@bellsouth.net>
>
> They are definitely NOT interchangeable. Tried it many, many years ago when
> I was trying to adapt the manual mixture control from the Huosai carburetor
> to the M14 carburetor.
> Dennis
>
> Sent from my iPhone
>
>> On Feb 21, 2019, at 11:18 AM, jay-dub <flyjnw@gmail.com> wrote:
>>
>>
>> Having had a very quiet moment while airborne the other day, it is likely
> we need a new carb diaphragm.
>>
>> Our maintenance organisation has a diaphragm for the AK-14P carb. We think
> we need a QHQ-14A for the Huosai, which I will have to acquire.
>>
>> Are they by any chance interchangeable before I email Doug S?
>>
>> Thanks.
>>
>> --------
>> CJ and Yak-52 owner
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=487724#487724
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
>
>
>
>
>
>
>
>
Message 4
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| Subject: | Re: Carb Diaphragm for HS-6A |
Ive had coil failure in the past. This was similar other than the smell of fuel
and the engine actually quit fully. Will have a look for leaks when we get it
apart.
--------
CJ and Yak-52 owner
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=487768#487768
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