Today's Message Index:
----------------------
1. 08:21 AM - Re: Dual Bing Carbs Hookup (Trey Moran)
2. 09:04 AM - Re: Dual Bing Carbs Hookup (gary)
3. 09:05 AM - Re: Dual Bing Carbs Hookup (Hinde, Frank George (Corvallis))
4. 02:47 PM - Re: [Probable Spam] Re: Dual Bing Carbs Hookup (LarryMcFarland)
Message 1
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| Subject: | Re: Dual Bing Carbs Hookup |
Hi Larry,
Thanks for the individual pics with explanations. That really helps. One
last question (I hope). Where did you get the throttle arm that allows you
to push for power? Right now, my throttle arms are spring loaded to the idle
position (based on fact that the spring holds the arm against the idle set
screw) and any direct cable connection to the arm is a "pull to add power"
connection.
Trey
----- Original Message -----
From: "LarryMcFarland" <larry@macsmachine.com>
Sent: Saturday, November 08, 2008 8:44 AM
Subject: Re: Stratus-List: Dual Bing Carbs Hookup
>
> Hi Trey,
> I put the linkage arms to the inside between the bings and made a linkage
> that connects both carbs at the linkage.
> see link and note the solid tubes connected by a bent flex link, seen
> between oil filler and alternator.
> http://www.macsmachine.com/images/controllinkages/full/abingcarbscable.gif
>
> The firewall linkage shown is the way I connected a A-820 friction
> throttle with wire p/n 05-09436 control to my firewall mounted arms
> each side and it allows the cable to push further without serious bending
> of the larger throttle wire.
>
> The collet fastener you see holding onto the throttle wire is called a
> .078 wire grip and it allows you to
> shorten the throttle wire and sheath p/n and attach the wire to the
> linkage. p/n 05-16001 at aircraft spruce.
> http://www.macsmachine.com/images/controllinkages/full/throttlelink.gif
>
> Then see the .065 music wire connection between the firewall mounted arm
> and the carburetor. It uses the sheath as a guide
> http://www.macsmachine.com/images/controllinkages/full/throttlewire.gif
>
> The pieces I made look like these two assemblies. Connecting link between
> carbs and wire connection. See link.
> http://www.macsmachine.com/images/controllinkages/full/Binglinkdwg.gif
>
> The following link is my enrichment connection and it retains two cables
> as before. Some call it a choke, but it pulls both cables.
> http://www.macsmachine.com/images/controllinkages/full/choke2to1clamp.gif
>
> This is really simple and works really well without any springs for the
> throttle arms to get in the way. Works like any Cessna throttle.
> Hope this helps a bit,
>
> Larry McFarland
>
>
> Trey Moran wrote:
>> <nail13zg@centurytel.net>
>>
>> Larry,
>>
>> I am intrigued by how you hooked the two carbs using one cable. Can't
>> figure it out from the pictures. Can you give me a few details? Did you
>> use any of the Rotax hardware? Did you do the same thing for the choke?
>>
>> Trey
>>
>>
>> ----- Original Message ----- From: "LarryMcFarland"
>> <larry@macsmachine.com>
>> To: <stratus-list@matronics.com>
>> Sent: Wednesday, November 05, 2008 3:35 PM
>> Subject: Re: Stratus-List: Dual Bing Carbs Hookup
>>
>>
>>> <larry@macsmachine.com>
>>>
>>> Hi Trey,
>>> I changed my dual-cable throttle setup to single cable sheath and a
>>> music wire within and a connection that joins both Bings in a common
>>> link.
>>> It's been working fine for 4 years now. Pictures on my sites engine and
>>> controls pages show how it's hooked up. If you need more information,
>>> just ask. Mine is also the Stratus, so it's informational specific.
>>> See links,
>>> www.macsmachine.com/html/subaruengine.htm
>>> www.macsmachine.com/html/controllinkages.htm
>>> http://www.macsmachine.com/images/controllinkages/full/throttlelink.gif
>>> http://www.macsmachine.com/images/controllinkages/full/panelinflight(2).gif
>>> My throttles on the panel side are common friction adjustable cables.
>>>
>>> Larry McFarland 601HDS at www.macsmachine.com
>>>
>>> Trey Moran wrote:
>>>> <nail13zg@centurytel.net>
>>>>
>>>> Does anyone have specifics on how to hook up the dual bing carbs on the
>>>> Stratus Subaru engine to a single cable throttle, including cable part
>>>> numbers etc. Building a Kitfox 5
>>>>
>>>> Trey Moran
>>>> KF 5
>>>>
>
>
>
Message 2
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| Subject: | Re: Dual Bing Carbs Hookup |
Mine came that way too but I reversed them. I had to get new throttle
arms and a shorter starter. I would prefer, and it is aircraft
convention, to have springs pull throttle on as default if cable breaks
or slips.
gary
Trey Moran wrote:
> <nail13zg@centurytel.net>
>
> Hi Larry,
>
> Thanks for the individual pics with explanations. That really helps.
> One last question (I hope). Where did you get the throttle arm that
> allows you to push for power? Right now, my throttle arms are spring
> loaded to the idle position (based on fact that the spring holds the
> arm against the idle set screw) and any direct cable connection to the
> arm is a "pull to add power" connection.
>
> Trey
Message 3
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| Subject: | Dual Bing Carbs Hookup |
Trey,
Larry has a good piece of design as he has overcome what is something of a flaw
in the original design. That is using springs to pull open the carbs.
There was a famous accident where a 701 was using the springs and the owner found
these a little stiff..he's right they were.
So he either found a weaker spring or removed one of them..Something like that.
Anyway, the owner decided to do a go around and the spring did not pull the carbs
open and it ended up in the trees.
Larry's design is a solid push/pull that does not require spring..It is indeed
just like my Lycoming on my RV and well worth doing IMHO.
Frank
601 HDS 400 hours
RV71 IO360 330 hours...And whole lot more distance..:)
-----Original Message-----
From: owner-stratus-list-server@matronics.com [mailto:owner-stratus-list-server@matronics.com] On Behalf Of Trey Moran
Sent: Tuesday, November 11, 2008 8:18 AM
Subject: Re: Stratus-List: Dual Bing Carbs Hookup
--> <nail13zg@centurytel.net>
Hi Larry,
Thanks for the individual pics with explanations. That really helps. One last question
(I hope). Where did you get the throttle arm that allows you to push for
power? Right now, my throttle arms are spring loaded to the idle position (based
on fact that the spring holds the arm against the idle set
screw) and any direct cable connection to the arm is a "pull to add power"
connection.
Trey
Message 4
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| Subject: | Re: Dual Bing Carbs Hookup |
Trey,
I didn't replace the throttle arms, only removed the springs that kept a
force on them. I did remove the throttle arm
on the carb opposite of the push pull linked carb.
http://www.macsmachine.com/images/controllinkages/full/abinghardcablelink.gif
The cable attachment at the arms end rotates in the arm and allows the
music wire to push and pull without
binding.
http://www.macsmachine.com/images/controllinkages/full/abingrtlinkopen.gif
http://www.macsmachine.com/images/controllinkages/full/abingleftlink.gif
http://www.macsmachine.com/images/controllinkages/full/abinghardcablelink.gif
Larry McFarland
Trey Moran wrote:
> <nail13zg@centurytel.net>
>
> Hi Larry,
>
> Thanks for the individual pics with explanations. That really helps.
> One last question (I hope). Where did you get the throttle arm that
> allows you to push for power? Right now, my throttle arms are spring
> loaded to the idle position (based on fact that the spring holds the
> arm against the idle set screw) and any direct cable connection to the
> arm is a "pull to add power" connection.
>
> Trey
>
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