Today's Message Index:
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1. 01:46 AM - Re: VDO tach installation on 912 (Paul Mitchell)
2. 07:20 AM - Re: Re: Rough Running 912 (Scott DeMeyer)
3. 12:39 PM - Re: Rough Running 912 (Goodone)
Message 1
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| Subject: | Re: VDO tach installation on 912 |
Does this help.
Paul
----- Original Message -----
From: "egp8111" <egp8111@aol.com>
Sent: Monday, December 06, 2010 5:34 PM
Subject: RotaxEngines-List: VDO tach installation on 912
>
> does anyone have the wiring diagram for the VDO tach for the 912 ?
>
> thanks
>
> EG
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=322481#322481
>
>
>
>
>
>
>
>
>
>
Message 2
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| Subject: | Re: Rough Running 912 |
Johann, I only have EGT on one cylinder so I was not able to notice any difference.
The vibration and rough running midrange was very frustrating. I thought
the Rotax dealer was crazy when he told me the problem was more than likely the
gearbox. I had replaced nearly every part in the fuel and electrical system
and was fed up with the problem. Told him not to call me until the motor was fixed
and ran smooth. I had about 400 hours on the motor.
Scott
--- On Mon, 12/6/10, joeing701@simnet.is <joeing701@simnet.is> wrote:
> From: joeing701@simnet.is <joeing701@simnet.is>
> Subject: Re: RotaxEngines-List: Re: Rough Running 912
> To: rotaxengines-list@matronics.com
> Date: Monday, December 6, 2010, 11:16 PM
> --> RotaxEngines-List message
> posted by: "joeing701@simnet.is"
> <joeing701@simnet.is>
>
> Hi Scott.
>
> When you had this engine rough running problem, did you
> notice any change or difference in the exhaust temp between
> cyl?
>
> Regards,
> Johann G.
> Iceland.
>
>
> ----- Upprunalegt skeyti -----
> Fr: "Scott DeMeyer" <scottsr1100rt@yahoo.com>
> Til: rotaxengines-list@matronics.com
> Sent: Mnudagur, 6. desember, 2010 15:19:19 GMT +00:00
> Monrovia
> Efni: Re: RotaxEngines-List: Re: Rough Running 912
>
> <scottsr1100rt@yahoo.com>
>
> I had this exact same problem as well. After spending
> months trying to fix, rebuilding carbs, replacing modules
> replacing wiring etc.... I finally gave up and took it to
> the Rotax dealer. He rebuilt the gearbox and the mid-range
> rough running problem went away! I would have never in a
> million years suspected the gearbox.
>
> Scott
>
>
> --- On Sun, 12/5/10, joeing701@simnet.is
> <joeing701@simnet.is>
> wrote:
>
> > From: joeing701@simnet.is
> <joeing701@simnet.is>
> > Subject: Re: RotaxEngines-List: Re: Rough Running 912
> > To: rotaxengines-list@matronics.com
> > Date: Sunday, December 5, 2010, 11:21 PM
> > --> RotaxEngines-List message
> > posted by: "joeing701@simnet.is"
> > <joeing701@simnet.is>
> >
> > Hello Goodone.
> >
> > This is exactly the same thing my friend has been
> > experiencing on his Kitfox. His cure was to change
> the
> > needle jet to the next larger size or from 2,72 to
> 2.80.
> > Solved his problem but as Roger Lee has pointed out,
> this
> > could just be a part of the problem, but the temps
> are
> > normal in the mid range after the change.
> >
> > Hope this helps,
> > Johann G.
> > Iceland.
> >
> > ----- Upprunalegt skeyti -----
> > Fr: "Goodone" <goodone41@verizon.net>
> > Til: rotaxengines-list@matronics.com
> > Sent: Sunnudagur, 5. desember, 2010 19:01:03 GMT
> +00:00
> > Monrovia
> > Efni: RotaxEngines-List: Re: Rough Running 912
> >
> > <goodone41@verizon.net>
> >
> > Went flying this past Friday and the rough running
> 912UL
> > was back in the mid range (4400-4800rpm) . Not real
> rough
> > but noticeable to me. I have had this problem in the
> past
> > (see beginning of this thread). Note that the rough
> running
> > occurred at the same time of year in the past when the
> air
> > here gets cold (40 F or below). The engine is in sync.
> Do
> > you folks think a change in needle to richen the
> mixture a
> > bit is the answer?
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=322365#322365
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Lists This Month --
> > Some AWESOME FREE Gifts!)
> > Raiser. Click on
> > out more about
> > Gifts provided
> > www.aeroelectric.com
> > www.buildersbooks.com
> > www.homebuilthelp.com
> > -Matt
> > Dralle, List Admin.
> > RotaxEngines-List Email Forum -
> > FAQ,
> > - MATRONICS WEB FORUMS -
> >
> >
> >
> >
>
>
>
>
>
>
>
> Lists This Month --
> Some AWESOME FREE Gifts!)
> Raiser. Click on
> out more about
> Gifts provided
> www.aeroelectric.com
> www.buildersbooks.com
> www.homebuilthelp.com
> -Matt
> Dralle, List Admin.
> RotaxEngines-List Email Forum -
> FAQ,
> - MATRONICS WEB FORUMS -
>
>
>
>
Message 3
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| Subject: | Re: Rough Running 912 |
I am not too sure about the gearbox being the problem in my case since this roughness
only is noticeable in colder weather and goes away when it is warm. The
roughness is very mild and probably not noticeable to a passenger in the aircraft.
If we get some warm weather I will attempt to enrich the needle position
and let you folks know how it works. I don't have access to a heated hanger so
this might take awhile.
Thanks for all your inputs. These ideas give me a number of things to consider.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=322612#322612
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