Today's Message Index:
----------------------
1. 05:11 AM - Rotax Website (h&jeuropa)
2. 05:21 AM - Installing a 912 (Noel Loveys)
3. 05:27 AM - Re: Hello out There? (Tommy Walker)
4. 05:39 AM - Re: Hello out There? (Gilles Thesee)
5. 05:56 AM - Re: Rotax Website (Michael Grass)
6. 07:31 AM - Fw: 912 clutch friction torque (Bill and Marsha)
7. 08:07 AM - Re: 912 clutch friction torque (Roger Lee)
8. 08:25 AM - Re: Hello out There? (Roger Lee)
9. 10:48 AM - Re: Installing a 912 (Hugh McKay III)
10. 10:53 AM - Re: Re: 912 clutch friction torque (Bill and Marsha)
11. 10:56 AM - Re: Hello out There? (Hugh McKay III)
12. 02:07 PM - Re: Hello out There? (Duncan & Ami McFadyean)
13. 03:24 PM - Re: Hello out There? (David Key)
14. 04:26 PM - Re: Hello out There? (Roger Lee)
15. 04:44 PM - Re: Hello out There? (Jack Kuehn)
16. 06:44 PM - Re: Hello out There? (Malcolmbru@aol.com)
17. 07:04 PM - Re: Hello out There? (Roger Lee)
18. 07:32 PM - Re: Electical System 912S (Roger Roy)
19. 11:54 PM - AW: Electical System 912S (Thilo Kind)
Message 1
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Went to the improved Rotax website recently to update email address for automatic
notification of service notes etc. I can't find a way to email them my new
address. Anyone know how to do this?
Jim Butcher
Europa N241BW
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=131764#131764
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| Subject: | Installing a 912 |
I have a 912 arriving here tomorrow sometime... The earlier the better as
it's supposed to be a fantastic day for flying again.
I was wondering if anyone has pictures of their installation on a model II.
I have contacted John McB. and I expect to get the engine mount from him.
Now I have to worry about how to install the cowl.
Buckets of photos would be appreciated... The high speed is now working
let's put it to the test!
Noel
Message 3
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| Subject: | Re: Hello out There? |
Ok, here goes:
After synchronizing the carburetors on my 912, idle speed now goes down to
about 13-1400 when I pull the throttle back.
Should I adjust the idle stop screws so that idle speed is in the 1800-2000
range? Is there a possibility of the engine stopping when I pull back on
the throttle at touchdown?
Thanks,
Tommy Walker
Message 4
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| Subject: | Re: Hello out There? |
Tommy Walker a crit :
>
> Ok, here goes:
>
>
>
> After synchronizing the carburetors on my 912, idle speed now goes
> down to about 13-1400 when I pull the throttle back.
>
>
>
> Should I adjust the idle stop screws so that idle speed is in the
> 1800-2000 range? Is there a possibility of the engine stopping when I
> pull back on the throttle at touchdown?
>
>
>
> Thanks,
>
>
> Tommy Walker
>
Tommy,
As advised in the Rotax installation manuals, your throttle should
include a positive idle stop to prevent straining the carb stops. If you
don't have one, consider installing it. It is then easy to make small
idle adjustments without disturbing the carb synch.
Yes your engine may stop at touchdown if there is no stop and you pull
hard on the throttle. But the main goal of not too low an idle speed is
preventing gearbox chatter and wear.
Best regards,
--
Gilles
http://contrails.free.fr
Message 5
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| Subject: | Re: Rotax Website |
Jim,
try http://www.rotax-owner.com/SI_TB_INFO/userupdate.asp
Hope to see you guys at Rough River
Michael Grass
A266 Trigear
----- Original Message -----
From: "h&jeuropa" <europa@triton.net>
Sent: Thursday, August 30, 2007 8:10 AM
Subject: RotaxEngines-List: Rotax Website
> <europa@triton.net>
>
> Went to the improved Rotax website recently to update email address for
> automatic notification of service notes etc. I can't find a way to email
> them my new address. Anyone know how to do this?
>
> Jim Butcher
> Europa N241BW
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=131764#131764
>
>
>
Message 6
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| Subject: | Fw: 912 clutch friction torque |
Subject: 912 clutch friction torque
Can anyone describe to me, in detail, the proper way to check the
clutch friction torque. thanks Bill S.
Message 7
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| Subject: | Re: 912 clutch friction torque |
Hi Bill,
Before I start you can download and print if you want the "Line Maint' and the
"Heavy Maint" manual and "Installation" manual on line. There is a newer version
out on the Installation and the Heavy maint. manual dated May of 2007. It
is not on the website as yet. It has to be purchased from a dealer. I would at
least read section 7.1 page 41 in the "Line Maint" manual and this describes
this procedure with pictures.
Ok,
First you need to put the gearbox lock pin in place. It is a screw about
1 5/8" long. You will need to remove the screw in the side of the gearbox (right
side as you face the gearbox) and then use a flashlight to see were the notch
is on the ecentric balance inside the gearbox through the screw hole. The screw
will fit into the notch to keep the gearbox from moving. When the screw is
in the proper place it will only screw in and leave about 3/4" sticking out.
If it goes in all the way then you missed. If it goes in just a small amount and
stops you missed. The notch is visable, just turn the prop really slow and
you will see it. Make sure you are in the notch made just for this and not just
applying pressure with the screw against the counter balance. This may cause
damage. If you turn the prop over slowly and look down inside you will see the
notch. Once the gearbox is locked down then you get a good fish scale or something
with at least pounds listed. You measure out 30" from the center of the
prop hub and attach a rope or strap over the prop that you can attach the scale
to so it doesn't damage the prop when you pull. You are going to pull the
prop in the direction of travel. It will move about 15-20 degrees. Watch the scale
and see how many pounds it registered while the prop moved. Take that number
and multiply that by the 30" and that will give you the friction torque. Then
just take the locking pin out and put the screw that seals the hole back in
place.
I know this may not make a lot of sence, but if you read the "Line Maint." manual
section 7.1 page 41 it explains it better and has pictures.
Example.
My prop pulls over at 18 lbs. 18 X 30 = 540. Remember higher is better.
The 200's are very low and it would be better to be in the 400-500's if possible,
300's is ok, but you may need to shim your gearbox in the not to distant future.
It is better to be on the higher side than the lower side. This means that when
starting and stoping of your engine does not cause the slipping of the dogs inside
the gearbox.
P.S.
If you have any questions or want me to talk you through it call me in Tucson,
Az. 520-574-1080
Roger lee
--------
Roger Lee
Tucson, Az.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=131799#131799
Message 8
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| Subject: | Re: Hello out There? |
Hi Tommy,
The answer is yes you should make the adjustment to have your engine idel around
1800rpm. The answer is yes you could lose your engine if you bring it down to
those low rpm. Rotax wants the 912 to idle at approximately 1800 rpm to keep
the vibration/shock pulsation from the engine reduced in the gearbox.A higher
idle is ok, but some like it lower than 2000rpm. A few rpm up or down makes no
real difference. I usually will not go below 1750rpm for idle. When you pnematically
sync the carbs the idle should have been done at that time to make sure
they are equal. If you just turn the idle stop screws without a vacum gage
on them you will not know which carb is doing most of the work and the left bank
cylinders will be trying to run at a different rpm than the right bank, even
with the crossover balance tube. The balance tube can get the 2 carbs close,
but is not a fix or substitue for syncing your carbs.
When the vacum gage is in place the one with the least vacum is getting the most
fuel. So if you need to come up in rpm turn the carb idel stop screw with the
most or highest vacum. The vacum will come down and the rpm will come up. Both
carbs should be the same vacum at 1800rpm. If you want your rpm to come down
because it is too high then turn the idle stop screw with the least or lowest
vacum. As the vacum goes up the rpm comes down.
If you have any further questions or would like me to talk you through this call
me in Tucson, Az. 520-574-1080
Roger lee
--------
Roger Lee
Tucson, Az.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=131806#131806
Message 9
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| Subject: | Installing a 912 |
Noel:
I have a few pictures of installing a 912 on my Allegro 2000. I will be glad
to copy them to you if you want to see them. Let me know.
Hugh McKay
Allegro 2000
912 UL
-----Original Message-----
From: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com]On Behalf Of Noel
Loveys
Sent: Thursday, August 30, 2007 8:21 AM
Subject: RotaxEngines-List: Installing a 912
I have a 912 arriving here tomorrow sometime... The earlier the better as
it's supposed to be a fantastic day for flying again.
I was wondering if anyone has pictures of their installation on a model II.
I have contacted John McB. and I expect to get the engine mount from him.
Now I have to worry about how to install the cowl.
Buckets of photos would be appreciated... The high speed is now working
let's put it to the test!
Noel
Message 10
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| Subject: | Re: 912 clutch friction torque |
Thanks for the quick and detailed response. I had already read the maint.
manuals and come up with the same info. I should have been a little more
clear on what I was asking. What I wanted to know was the torque setting of
the clutch pack its self and how to check it. I had heard that this should
not be performed on the engine but on the bench.
Bill S. P.S. also a ssa diver Most fun I've had next to
flying.
----- Original Message -----
From: "Roger Lee" <ssadiver1@yahoo.com>
Sent: Thursday, August 30, 2007 10:07 AM
Subject: RotaxEngines-List: Re: 912 clutch friction torque
>
> Hi Bill,
>
> Before I start you can download and print if you want the "Line Maint' and
> the "Heavy Maint" manual and "Installation" manual on line. There is a
> newer version out on the Installation and the Heavy maint. manual dated
> May of 2007. It is not on the website as yet. It has to be purchased from
> a dealer. I would at least read section 7.1 page 41 in the "Line Maint"
> manual and this describes this procedure with pictures.
>
> Ok,
> First you need to put the gearbox lock pin in place. It is a screw about
> 1 5/8" long. You will need to remove the screw in the side of the gearbox
> (right side as you face the gearbox) and then use a flashlight to see were
> the notch is on the ecentric balance inside the gearbox through the screw
> hole. The screw will fit into the notch to keep the gearbox from moving.
> When the screw is in the proper place it will only screw in and leave
> about 3/4" sticking out. If it goes in all the way then you missed. If it
> goes in just a small amount and stops you missed. The notch is visable,
> just turn the prop really slow and you will see it. Make sure you are in
> the notch made just for this and not just applying pressure with the screw
> against the counter balance. This may cause damage. If you turn the prop
> over slowly and look down inside you will see the notch. Once the gearbox
> is locked down then you get a good fish scale or something with at least
> pounds listed. You measure out 30" from the center of the prop hub and
> attach a rope or strap over the prop !
> that you can attach the scale to so it doesn't damage the prop when you
> pull. You are going to pull the prop in the direction of travel. It will
> move about 15-20 degrees. Watch the scale and see how many pounds it
> registered while the prop moved. Take that number and multiply that by the
> 30" and that will give you the friction torque. Then just take the locking
> pin out and put the screw that seals the hole back in place.
>
> I know this may not make a lot of sence, but if you read the "Line Maint."
> manual section 7.1 page 41 it explains it better and has pictures.
>
> Example.
> My prop pulls over at 18 lbs. 18 X 30 = 540. Remember higher is better.
> The 200's are very low and it would be better to be in the 400-500's if
> possible, 300's is ok, but you may need to shim your gearbox in the not to
> distant future.
> It is better to be on the higher side than the lower side. This means that
> when starting and stoping of your engine does not cause the slipping of
> the dogs inside the gearbox.
>
> P.S.
> If you have any questions or want me to talk you through it call me in
> Tucson, Az. 520-574-1080
>
> Roger lee
>
> --------
> Roger Lee
> Tucson, Az.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=131799#131799
>
>
>
Message 11
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| Subject: | Hello out There? |
Roger:
I monitor this forum, and at the moment there seems to be a lot of happiness
out there regarding the 912s. Everybody, like me, seems to be flying rather
than fixing or adjusting something on their 912s. To me this is good news!
However, have no fear, something will pop up, and then we all will again be
engrossed in solving the "Problem". Finally flying my Allegro 2000 with a
912 out of Laneys Airport (N92) and am enjoying it to the max!
Hugh McKay in North Carolina
Allegro 2000
Rotax 912 UL
N661WW
-----Original Message-----
From: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com]On Behalf Of Roger Lee
Sent: Wednesday, August 29, 2007 9:26 PM
Subject: RotaxEngines-List: Hello out There?
Hi all,
Doesn't anyone have any ideas, questions or problems we all can discuss on
this forum? This is such a quiet forum.
--------
Roger Lee
Tucson, Az.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=131693#131693
Message 12
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| Subject: | Re: Hello out There? |
Try the Lycoming or Jabiru forum!
----- Original Message -----
From: "Roger Lee" <ssadiver1@yahoo.com>
Sent: Thursday, August 30, 2007 2:25 AM
Subject: RotaxEngines-List: Hello out There?
>
> Hi all,
>
> Doesn't anyone have any ideas, questions or problems we all can discuss on
> this forum? This is such a quiet forum.
>
> --------
> Roger Lee
> Tucson, Az.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=131693#131693
>
>
Message 13
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| Subject: | Re: Hello out There? |
all the Rotax engines are running. Try the other engine forms.
>From: "Duncan & Ami McFadyean" <ami@MCFADYEAN.FREESERVE.CO.UK>
>To: <rotaxengines-list@matronics.com>
>Subject: Re: RotaxEngines-List: Hello out There?
>Date: Thu, 30 Aug 2007 22:06:54 +0100
>
><ami@mcfadyean.freeserve.co.uk>
>
>Try the Lycoming or Jabiru forum!
>
>----- Original Message ----- From: "Roger Lee" <ssadiver1@yahoo.com>
>To: <rotaxengines-list@matronics.com>
>Sent: Thursday, August 30, 2007 2:25 AM
>Subject: RotaxEngines-List: Hello out There?
>
>
>>
>>Hi all,
>>
>>Doesn't anyone have any ideas, questions or problems we all can discuss on
>>this forum? This is such a quiet forum.
>>
>>--------
>>Roger Lee
>>Tucson, Az.
>>
>>
>>
>>
>>Read this topic online here:
>>
>>http://forums.matronics.com/viewtopic.php?p=131693#131693
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 14
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| Subject: | Re: Hello out There? |
Hi Guys,
I agree the good news as always is that the Rotax 912 just keeps on ticking, like
a Timex, but we all need to consider the feeding and care to keep it happy
for 10-15 years. If you could do something now for $25 wouldn't that be better
than $800 or more later.
The idea of the first post was just to stimulate thought and for people to think
about the future and maint. of their great engine, nothing more. Maybe to get
more people involved in their own maint. of the engine.
I have had a couple of 912's and think they are a great engine.
Just want to help people keep their investment in good healthy shape.
P.S.
I'm not a Jabiru fan.
--------
Roger Lee
Tucson, Az.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=131939#131939
Message 15
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| Subject: | Re: Hello out There? |
Yes there is a chance your engine can stop!! My engine stalled out after
touchdown once. Mine did the same thing after synchronizing, and I had to
do it over at a higher RPM. Do the whole process over and make sure the
idle speed is correct.
Jack
On 8/30/07, Tommy Walker <twalker@cableone.net> wrote:
>
> Ok, here goes:
>
>
> After synchronizing the carburetors on my 912, idle speed now goes down to
> about 13-1400 when I pull the throttle back.
>
>
> Should I adjust the idle stop screws so that idle speed is in the
> 1800-2000 range? Is there a possibility of the engine stopping when I pull
> back on the throttle at touchdown?
>
>
> Thanks,
>
>
> Tommy Walker
>
> *
>
>
> *
>
>
--
Jack Kuehn
5565 Brady Ln
Lolo, MT USA 59847
(406)273-6801
(406)546-1086 cell
jack.kuehn@gmail.com
(406)273-2563 fax
Message 16
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| Subject: | Re: Hello out There? |
my 582 was running fine then after not flying for 4 days the batteries went
dead . so I half charged it and went flying but I noticed my volt meter read
about 11 when it always read 14 or so now today after not flying for 2 days
it was slow to roll over so I put it on a charger the charger read 7 so I
charged it up full and will weight till Friday morn to fly again HOW do I
trouble shoot this problem? malcolm michigan
http://discover.aol.com/memed/aolcom30tour
Message 17
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| Subject: | Re: Hello out There? |
Hi Malcolm,
Don't fly it until you have this figured out.
You may lose an engine in flight.
It has to be your charging unit out put or the reg/rectifier. My bet it is your
reg/rectifier. They go out more often than most charging system parts. It is
easy to replace, too. First look carefully at the wires going into the reg/rectifier
and see if they look burnt or very dark in color. You can take a volt meter
and put this on the terminals to the battery and see what the voltage to
the battery is, like you said it should be about 13.8V to 14.2V is normal. This
may vary a little, but should be close.
See the attachment
--------
Roger Lee
Tucson, Az.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=131952#131952
Attachments:
http://forums.matronics.com//files/generator_and_low_voltage_159.pdf
Message 18
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| Subject: | Re: ngines-List:Electical System 912S |
I've a 912S on a Savannah aircraft with a Microair 760 comm. Comm works
static free 5X5 with engine not running. With engine at idle I'd rate it
as 2X5 as RPM is increased so does the radio static. The radio has a
profesional made harness by a reputable shop. Looking at the electrical
diagram in the Installation manual I notice a capacitor with a value of
22000mfd 25volts can anyone tell me if that's a required component or is
it an option this part is not installed on my electrical system, Can
antone advise, thaks
Regards,
RJ Roy
----- Original Message -----
From: Roger Lee<mailto:ssadiver1@yahoo.com>
To:
rotaxengines-list@matronics.com<mailto:rotaxengines-list@matronics.com>
Sent: Thursday, August 30, 2007 10:04 PM
Subject: RotaxEngines-List: Re: Hello out There?
<ssadiver1@yahoo.com<mailto:ssadiver1@yahoo.com>>
Hi Malcolm,
Don't fly it until you have this figured out.
You may lose an engine in flight.
It has to be your charging unit out put or the reg/rectifier. My bet
it is your reg/rectifier. They go out more often than most charging
system parts. It is easy to replace, too. First look carefully at the
wires going into the reg/rectifier and see if they look burnt or very
dark in color. You can take a volt meter and put this on the terminals
to the battery and see what the voltage to the battery is, like you said
it should be about 13.8V to 14.2V is normal. This may vary a little, but
should be close.
See the attachment
--------
Roger Lee
Tucson, Az.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=131952#131952<http://forums
matronics.com/viewtopic.php?p=131952#131952>
Attachments:
http://forums.matronics.com//files/generator_and_low_voltage_159.pdf<http
://forums.matronics.com//files/generator_and_low_voltage_159.pdf>
http://www.matronics.com/Navigator?RotaxEngines-List<http://www.matronics
com/Navigator?RotaxEngines-List>
Message 19
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| Subject: | ngines-List:Electical System 912S |
Hi Roger,
the capacitor is optional, but highly recommended - might also take care of
your static issue.
Thilo
Von: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com] Im Auftrag von Roger
Roy
Gesendet: Friday, August 31, 2007 4:32 AM
An: rotaxengines-list@matronics.com
Betreff: Re: RotaxEngines-List:Electical System 912S
I've a 912S on a Savannah aircraft with a Microair 760 comm. Comm works
static free 5X5 with engine not running. With engine at idle I'd rate it as
2X5 as RPM is increased so does the radio static. The radio has a
profesional made harness by a reputable shop. Looking at the electrical
diagram in the Installation manual I notice a capacitor with a value of
22000mfd 25volts can anyone tell me if that's a required component or is it
an option this part is not installed on my electrical system, Can antone
advise, thaks
Regards,
RJ Roy
----- Original Message -----
From: Roger Lee <mailto:ssadiver1@yahoo.com>
Sent: Thursday, August 30, 2007 10:04 PM
Subject: RotaxEngines-List: Re: Hello out There?
Hi Malcolm,
Don't fly it until you have this figured out.
You may lose an engine in flight.
It has to be your charging unit out put or the reg/rectifier. My bet it is
your reg/rectifier. They go out more often than most charging system parts.
It is easy to replace, too. First look carefully at the wires going into the
reg/rectifier and see if they look burnt or very dark in color. You can take
a volt meter and put this on the terminals to the battery and see what the
voltage to the battery is, like you said it should be about 13.8V to 14.2V
is normal. This may vary a little, but should be close.
See the attachment
--------
Roger Lee
Tucson, Az.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=131952#131952
Attachments:
http://forums.matronics.com//files/generator_and_low_voltage_159.pdfnbsp;
<http://forums.matronics.com/files/generator_and_low_voltage_159.pdf>
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