Today's Message Index:
----------------------
1. 12:18 AM - Re: Carb jet changes (avidflyer01)
2. 02:37 AM - Re: Re: Carb jet changes (Jim Ballenger)
3. 04:25 AM - Re: Re: Carb jet changes (Lynn Matteson)
4. 04:33 AM - Re: Re: Carb jet changes (Lynn Matteson)
5. 05:34 AM - Re: Re: Carb jet changes (ElleryWeld@aol.com)
6. 07:26 AM - Re: Re: Carb jet changes (Lynn Matteson)
7. 08:05 AM - Re: Re: Carb jet changes (ALAN BEYER)
8. 10:42 AM - Post Mortem - Matronics List Pummeled By Spam... (Matt Dralle)
9. 02:33 PM - Re: Re: Carb jet changes (Lynn Matteson)
Message 1
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| Subject: | Re: Carb jet changes |
Lynn, I was also warned against the use of scat hose; My initial setup that dit
not include airbox (had only 90elbow from truck radiator hose and conical air
filter on it) worked fine. Then I decided to mount the airbox - I think Avids
have less room between carb intake and firewall (70mm) compared to Kitfoxes
and my rubber elbow would not fit any longer.
So I went for a scat hose, just to try, and it actually works fine (I also flew
with carb intake simply open, I don't see any noticable diffrence in power, smoothness,
or EGT.
of course it is very difficult to put a scat on the narrow flange of the carb and
tighten the clamp without having it slide off. But if you achieve it correctly,
it works.
I am at present making an epoxy "cobra head" to have a firm fit to the carb and
a smooth air transition.
martin
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=145018#145018
Message 2
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| Subject: | Re: Carb jet changes |
Lynn
I read your story in the Sport Pilot. Great job.
Jim Ballenger
Sonex 760 TD / Jabiru 2200
Virginia Beach, VA
----- Original Message -----
From: "Lynn Matteson" <lynnmatt@jps.net>
Sent: Friday, November 09, 2007 6:59 AM
Subject: Re: JabiruEngine-List: Re: Carb jet changes
>
> Martin-
> Are you really using SCAT hose directly to the carb? My instructions
> warned against that, as the engine wants a nice smooth flow of air,
> for the last 4 inches at least. The air must flow smoothly into the
> carb because the two air sensor ports need a smooth and equal flow in
> order to operate properly...or so the instructions say.
>
> Your idle problems sound just *exactly* like mine did before I
> installed the newer, and smaller, float needle and seat. Now I can
> fly the plane, land, taxi to wherever on the field, and shut the
> engine off....no more having to shut off the main fuel valve a
> certain amount of time before I shut the engine down...no more
> worrying about whether it will start when hot...just no more treating
> the engine differently. Hell, with the engine operating like this, I
> could rent it out as a training plane...NOT!
>
> Maybe your leak was not as great as mine, Martin, or it evaporates
> quickly (no puddle under yours). My rubber air hose to my carb, for
> the carb incoming air, is a piece of truck radiator hose, and unless
> it had a long-standing pool of gas sitting in it, would not leak any
> fuel until it rotted away.
>
> Lynn Matteson
> Grass Lake, Michigan
> Kitfox IV Speedster w/Jabiru 2200
> flying w/420+ hrs
>
>
> On Nov 9, 2007, at 12:12 AM, avidflyer01 wrote:
>
>> <vegayacht@club.fr>
>>
>> Lynn,I also noticed that if I remove the SCAT tube which connects
>> the carb to the air filter, there is some petrol sitting there (if
>> the engine has just been running); I also experience some troubles
>> as to idle, if I reduce power to around 800rpm the engine will
>> progressively start slowing down and will eventually quit after
>> some 30-45secs (as it occasionally does on final if I don't baby it
>> with throttle). exhaust is definitely sooty in spite of high EGT in
>> flight.
>>
>> I will try putting a new idle/seat; it sounds surprising, though,
>> because I would expect to find a puddle of gas under the plane if
>> left with a valve open - which is not the case in my plane.
>>
>> martin
>> avid flyer STOL HH w/Jab2200
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=144710#144710
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
>
Message 3
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| Subject: | Re: Carb jet changes |
Thanks, Jim. I had a lot of fun doing the article and it brought back
a lot of memories of building the plane...which of course wasn't all
that long ago.
Lynn Matteson
Grass Lake, Michigan
Kitfox IV Speedster w/Jabiru 2200
flying w/420+ hrs
do not archive
On Nov 11, 2007, at 5:36 AM, Jim Ballenger wrote:
> <ulpilot@cavtel.net>
>
> Lynn
> I read your story in the Sport Pilot. Great job.
> Jim Ballenger
> Sonex 760 TD / Jabiru 2200
> Virginia Beach, VA
Message 4
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| Subject: | Re: Carb jet changes |
Martin-
I was thinking about making a fiberglass "cobra head," because of the
closeness of my installation, then I found the radiator hose
solution. The hose of so stiff that it's a bear to get on the carb,
but when on it works just fine...nice smooth transition from the
airbox, through about 4" of SCAT, then into about 6" of the curved
radiator hose, which is vertical to the carb.
Lynn Matteson
Grass Lake, Michigan
Kitfox IV Speedster w/Jabiru 2200
flying w/420+ hrs
do not archive
On Nov 11, 2007, at 3:18 AM, avidflyer01 wrote:
> <vegayacht@club.fr>
>
> Lynn, I was also warned against the use of scat hose; My initial
> setup that dit not include airbox (had only 90elbow from truck
> radiator hose and conical air filter on it) worked fine. Then I
> decided to mount the airbox - I think Avids have less room between
> carb intake and firewall (70mm) compared to Kitfoxes and my rubber
> elbow would not fit any longer.
> So I went for a scat hose, just to try, and it actually works fine
> (I also flew with carb intake simply open, I don't see any
> noticable diffrence in power, smoothness, or EGT.
> of course it is very difficult to put a scat on the narrow flange
> of the carb and tighten the clamp without having it slide off. But
> if you achieve it correctly, it works.
> I am at present making an epoxy "cobra head" to have a firm fit to
> the carb and a smooth air transition.
> martin
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=145018#145018
>
>
Message 5
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| Subject: | Re: Carb jet changes |
Yes great story Lynn Kinda reminds me of my self from Radio controlled to
Real wings
That Jab is a really nice engine Just installed one on a Plane for a Guy
cant wait to hear it run
Ellery in Maine
do not archive
Message 6
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| Subject: | Re: Carb jet changes |
Thanks Ellery-
By the way, I'm not responsible for the picture captions about the
"cordless iron" or the one about the "aluminum of the wing from
rusting." : )
Lynn Matteson
Grass Lake, Michigan
Kitfox IV Speedster w/Jabiru 2200
flying w/420+ hrs
do not archive
On Nov 11, 2007, at 8:33 AM, ElleryWeld@aol.com wrote:
> Yes great story Lynn Kinda reminds me of my self from Radio
> controlled to Real wings
>
> That Jab is a really nice engine Just installed one on a Plane for
> a Guy cant wait to hear it run
>
> Ellery in Maine
> do not archive
>
>
> www.matronics.com/Navigator?JabiruEngine-List _-
> ===========================================================
Message 7
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| Subject: | Re: Carb jet changes |
Here are some pics of the intake elbow I made.=0A=0AZodiac 601HDS, 3300 Jab
iru (350 Hrs.)=0AAl from Oshkosh=0A=0A=0A----- Original Message ----=0AFrom
: avidflyer01 <vegayacht@club.fr>=0ATo: jabiruengine-list@matronics.com=0AS
ent: Sunday, November 11, 2007 2:18:04 AM=0ASubject: JabiruEngine-List: Re:
1" <vegayacht@club.fr>=0A=0ALynn, I was also warned against the use of scat
hose; My initial setup that dit not include airbox (had only 90=C2=B0elbo
w from truck radiator hose and conical air filter on it) worked fine. Then
I decided to mount the airbox - I think Avids have less room between carb
intake and firewall (70mm) compared to Kitfoxes and my rubber elbow would n
ot fit any longer.=0ASo I went for a scat hose, just to try, and it actuall
y works fine (I also flew with carb intake simply open, I don't see any not
icable diffrence in power, smoothness, or EGT.=0Aof course it is very diffi
cult to put a scat on the narrow flange of the carb and tighten the clamp w
ithout having it slide off. But if you achieve it correctly, it works.=0AI
am at present making an epoxy "cobra head" to have a firm fit to the carb a
nd a smooth air transition.=0Amartin=0A=0A=0A=0A=0ARead this topic online h
ere:=0A=0Ahttp://forums.matronics.com/viewtopic.php?p=145018#145018=0A=0A
====================
Message 8
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| Subject: | Post Mortem - Matronics List Pummeled By Spam... |
Dear Listers,
Over a 3-day period, Thursday 11/8 though Saturday 11/10, the Matronics Lists were
pummeled with over 450,000 spam emails causing posting delays and a few duplicate
messages. Yeah, I really said nearly half a million spams! The good
news is that I don't believe a single one of them actually made it to the Lists
thanks to the aggressive List filtering code and the Barracuda spam filter.
The bad news was that it caused quite a back log of email messages starting Friday
and continuing until late Saturday when I noticed that delivery seemed a bit
sluggish. By about 11pm on Saturday night, I had managed to get the backlog
cleared out of the spam filter by temporarily adjusting some of the filtering.
A check of the queues this morning, and everything looks like its working great
and there are no incoming filtering delays and spam levels appear to be back
to "normal".
There were a number of people asking what was going on, so I thought that I'd send
out a follow up post mortem on the event...
November is the annual List Fund Raiser. Your contribution directly enables me
to buy systems like the Barracuda spam filter that keep the List free of that
garbage. Please make a contribution to support your Lists!
http://www.matronics.com/contribution
Thank you!
Matt Dralle
Matronics Email List Administrator
Message 9
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| Subject: | Re: Carb jet changes |
I see that you have the air inlet tube coming in from the side. This
is what I was warned against, both in the workshop at Sun 'n' Fun and
in reading the instruction "manual." They say the airflow should come
in from below or above, not from the side, as coming from the side
sends different signals to the two air sensor ports in the top of the
carb throat. But with 350 hours on yours, it must be working well.
I've got ~435 on mine and it works well. I guess that's why we
experiment.
Lynn Matteson
Grass Lake, Michigan
Kitfox IV Speedster w/Jabiru 2200
flying w/420+ hrs
On Nov 11, 2007, at 11:04 AM, ALAN BEYER wrote:
> Here are some pics of the intake elbow I made.
>
> Zodiac 601HDS, 3300 Jabiru (350 Hrs.)
> Al from Oshkosh
>
> ----- Original Message ----
> From: avidflyer01 <vegayacht@club.fr>
> To: jabiruengine-list@matronics.com
> Sent: Sunday, November 11, 2007 2:18:04 AM
> Subject: JabiruEngine-List: Re: Carb jet changes
>
> <vegayacht@club.fr>
>
> Lynn, I was also warned against the use of scat hose; My initial
> setup that dit not include airbox (had only 90elbow from truck
> radiator hose and conical air filter on it) worked fine. Then I
> decided to mount the airbox - I think Avids have less room between
> carb intake and firewall (70mm) compared to Kitfoxes and my rubber
> elbow would not fit any longer.
> So I went for a scat hose, just to try, and it actually works fine
> (I also flew with carb intake simply open, I don't see any
> noticable diffrence in power, smoothness, or EGT.
> of course it is very difficult to put a scat on the narrow flange
> of the carb and tighten the clamp without having it slide off. But
> if you achieve it correctly, it works.
> I am at present making an epoxy "cobra head" to have a firm fit to
> the carb and a smooth air transition.
> martin
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtonbsp;
> atronics.com/Navigator?JabiruEngine-List" target=_blank>http://
> www.matronics.com/Navigator?JabiruEngine-List
>
>
> <IMG_0102.JPG>
> <IMG_0461.JPG>
> <IMG_2473.JPG>
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