Today's Message Index:
----------------------
1. 07:09 AM - Re: Kolb-List Digest: 0 Msgs - 12/14/09 (Ted Woodill)
2. 08:34 AM - Re: Re: Kolb-List Digest: 0 Msgs - 12/14/09 (russ kinne)
3. 08:49 AM - Trailer (william sullivan)
4. 08:49 AM - New 912 TBO (John Hauck)
5. 08:52 AM - Rotax Increases 912 TBO (John Hauck)
6. 09:20 AM - Re: New 912 TBO (Herb)
7. 09:33 AM - Re: New 912 TBO (John Hauck)
8. 09:45 AM - Re: New 912 TBO (robert bean)
9. 03:42 PM - Rotax 912 Question (Rick Lewis)
10. 04:36 PM - Re: Rotax 912 Question (John Hauck)
11. 04:58 PM - Re: Rotax 912 Question (Rick Lewis)
12. 05:03 PM - Re: Rotax 912 Question (purplemoon99@bellsouth.net)
13. 05:13 PM - Re: Rotax 912 Question (Rick Lewis)
14. 05:46 PM - Re: Rotax 912 Question (Roger Lee)
15. 05:48 PM - Re: New 912 TBO (Roger Lee)
16. 06:14 PM - Re: Re: Rotax 912 Question (John Hauck)
17. 07:16 PM - Re: Trailer (racerjerry)
18. 08:05 PM - Re: Tire Balance (racerjerry)
Message 1
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Subject: | Re: Kolb-List Digest: 0 Msgs - 12/14/09 |
I have been a lurker on this site for a couple of years, I have
developed a cockpit adjustable trim tab system for FS & FSll kolb. It
is bolt on, no welding and it work like a dream. Any one interested in
the kit reply off site for prices. tedwoodill@gmail.com
On Mon, Dec 14, 2009 at 11:57 PM, Kolb-List Digest Server
<kolb-list@matronics.com> wrote:
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> Total Messages Posted Mon 12/14/09: 0
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Message 2
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Subject: | Re: Kolb-List Digest: 0 Msgs - 12/14/09 |
Ted
Can we see a picture of this?
Message 3
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- I am building a transport trailer similar to Scott Olendorf's.- Could
anyone give me their max dimensions for outside the tires on their aircraf
t?- Any models will do, as I want to make it as- flexible as possible.
- I have Jack Hart's measurements, as well as mine.- I realise they wil
l vary according to landing gear length, brakes, tire size, and wheel pants
.-
- Also, a measurement from the main tires back to the end of the folded w
ings.- No rush- this is a winter project, weather permitting.- I alread
y have an older boat trailer, and have extended the tongue.- Now it's tim
e for the deck, ramps, boom support, and tie downs.
- Tentatively, I am going to set it up for a 60" wheel width, but if some
one else in the area needed it it would be nice to be able to use it for ot
her than a Firestar.
-
-------------------------
-------------------------
----- Bill Sullivan
-------------------------
-------------------------
----- Windsor Locks, Ct.
-------------------------
-------------------------
----- FS 447
Message 4
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Morning Gang:
I sent this one a couple hours ago. Must have gotten lost in cyber space.
Rotax has announced new TBO, by serial number, the the 912 series engines:
Eric Tucker, the founder of Rotax Flying Club and developer of training
programs for Rotax Aircraft Engines, said "The upgrading of components
within the engine, and the significant improvements within the past few
years, shows a commitment and faith in the light aircraft community. With
LSA category aircraft becoming more accepted worldwide the increase in TBO
helps owners and operators using Rotax Aircraft Engines get the best value
in propulsion. 20 years ago this year Rotax put the 4 stroke 9 series on
the market, with a 600 hour TBO, today the 2000 mark is a milestone that is
welcome and deserved."
http://www.rotax-owner.com/SI_TB_Info/ServiceB/SB-912-057-UL.pdf
john h
mkIII
Message 5
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Subject: | Rotax Increases 912 TBO |
Morning Gang:
Aero News Network has the following info this morning.
Eric Tucker, the founder of Rotax Flying Club and developer of training
programs for Rotax Aircraft Engines, said "The upgrading of components
within the engine, and the significant improvements within the past few
years, shows a commitment and faith in the light aircraft community. With
LSA category aircraft becoming more accepted worldwide the increase in TBO
helps owners and operators using Rotax Aircraft Engines get the best value
in propulsion. 20 years ago this year Rotax put the 4 stroke 9 series on
the market, with a 600 hour TBO, today the 2000 mark is a milestone that is
welcome and deserved."
http://www.rotax-owner.com/SI_TB_Info/ServiceB/SB-912-057-UL.pdf
john h
mkIII
Message 6
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Strange that the 912 gearbox has a 2k hr tbo while similar gearboxes
on 2 strokers have much less! Herb
At 10:48 AM 12/15/2009, you wrote:
>
>Morning Gang:
>
>I sent this one a couple hours ago. Must have gotten lost in cyber space.
>
>Rotax has announced new TBO, by serial number, the the 912 series engines:
>
>Eric Tucker, the founder of Rotax Flying Club and developer of training
>programs for Rotax Aircraft Engines, said "The upgrading of components
>within the engine, and the significant improvements within the past few
>years, shows a commitment and faith in the light aircraft community. With
>LSA category aircraft becoming more accepted worldwide the increase in TBO
>helps owners and operators using Rotax Aircraft Engines get the best value
>in propulsion. 20 years ago this year Rotax put the 4 stroke 9 series on
>the market, with a 600 hour TBO, today the 2000 mark is a milestone that is
>welcome and deserved."
>
>
>http://www.rotax-owner.com/SI_TB_Info/ServiceB/SB-912-057-UL.pdf
>
>john h
>
>mkIII
>
>
>Checked by AVG - www.avg.com
>12/15/09 07:52:00
Message 7
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> Strange that the 912 gearbox has a 2k hr tbo while similar gearboxes
> on 2 strokers have much less! Herb
Don't know why, for sure.
-Pressure lube
-Much heavier contruction.
???
john h
mkIII
Message 8
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It may be a matter of harmonics or some other difference in stress imposed by 2
stroke vs four cylinders.
The 912 runs pretty smooth.
BB
On 15, Dec 2009, at 12:15 PM, Herb wrote:
>
> Strange that the 912 gearbox has a 2k hr tbo while similar gearboxes on 2 strokers
have much less! Herb
>
>
> At 10:48 AM 12/15/2009, you wrote:
>>
>> Morning Gang:
>>
>> I sent this one a couple hours ago. Must have gotten lost in cyber space.
>>
>> Rotax has announced new TBO, by serial number, the the 912 series engines:
>>
>> Eric Tucker, the founder of Rotax Flying Club and developer of training
>> programs for Rotax Aircraft Engines, said "The upgrading of components
>> within the engine, and the significant improvements within the past few
>> years, shows a commitment and faith in the light aircraft community. With
>> LSA category aircraft becoming more accepted worldwide the increase in TBO
>> helps owners and operators using Rotax Aircraft Engines get the best value
>> in propulsion. 20 years ago this year Rotax put the 4 stroke 9 series on
>> the market, with a 600 hour TBO, today the 2000 mark is a milestone that is
>> welcome and deserved."
>>
>>
>>
>> http://www.rotax-owner.com/SI_TB_Info/ServiceB/SB-912-057-UL.pdf
>>
>> john h
>>
>> mkIII
>>
>>
>>
>>
>>
>>
>>
>>
>> Checked by AVG - www.avg.com
>> 12/15/09 07:52:00
>
>
>
>
>
Message 9
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Subject: | Rotax 912 Question |
I need to know if the Rotax 912 has a thermostat in the water system. I'm thinking
I will need one in my water cooled VW installation. I have found on line
someone who sells an inline thermostat housing. It's a little pricey so I may
build what I need myself.
Rick Lewis
( Water Cooled VW )
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=277662#277662
Message 10
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Subject: | Re: Rotax 912 Question |
> I need to know if the Rotax 912 has a thermostat in the water system.
I'm thinking I will need one in my water cooled VW installation. I have
found on line someone who sells an inline thermostat housing. It's a little
pricey so I may build what I need myself.
>
>
> Rick Lewis
Rick L/Gang:
Very difficult to use a thermostat on the cooling system because the water
pump has 4 outlets, one for each cylinder head.
To design a thermostat system for the 912 would require 4 thermostats. That
is too busy for me. I want to keep everything as simple as possible.
We fabricated an inline thermostat housing, aluminum billet, for my 912
because it was very difficult to keep the CHT up to around 180F. The engine
performs much better at 180F and higher, if you can get it there during cold
weather. The thermostat was installed in the 1" return line to the single
water pump inlet. It worked ok, with the exception of blowing coolant out
of the coolant header tank. Was not the right system. We used a thermostat
for a 350 Chevy. If we had had three more to install on all four coolant
outlet hoses, it would have worked fine.
To get around the low temp problem, in the winter months, with the 912UL
engine, which normally runs much cooler than the 912ULS, I bypassed the
engine oil cooler. That exercise required swapping two hoses. Kept the CHT
and engine oil temps up where they belonged. The 912 has to reach at least
190F engine oil temp in order to boil off condensation in the oil system.
Some folks have used an aftermarket engine oil thermostat, but that gets a
little complicated and does not perform as expected. I let others test that
system. I am not interested in experiementing with it.
To get the temps up on my current 912ULS, I tape a couple wraps of gaffers
tape on each end of the coolant radiator. This will bring the CHT and
engine oil temps up to normal operating range.
john h
mkIII - Suffering from severe cabin fever. Sun is supposed to shine
tomorrow and Gantt International Airport will be operational. I'm gonna fly
a little.
Message 11
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Subject: | Re: Rotax 912 Question |
Thanks John, this information helps. I feel I will have to install some kind of
thermostat in my system. This can more easily be accomplished on this with
only two thermostats installed.
Thanks John
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=277670#277670
Message 12
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Subject: | Re: Rotax 912 Question |
Rick,goto info@ramengines.com- Ron has some BMW thermo.that will work inl
ine in the main hose--- Joe N101HD-- =0A=0A=0A=0A=0A_____________
___________________=0AFrom: Rick Lewis <cktman@hughes.net>=0ATo: kolb-list@
matronics.com=0ASent: Tue, December 15, 2009 6:41:23 PM=0ASubject: Kolb-Lis
ktman@hughes.net>=0A=0AI need to know if the Rotax 912 has a thermostat in
the water system.- I'm thinking I will need one in my water cooled VW ins
tallation.- I have found on line someone who sells an inline thermostat h
ousing.- It's a little pricey so I may build what I need myself.- =0A
=0A=0ARick Lewis=0A=0A( Water Cooled VW )=0A=0A=0A=0A=0ARead this topic onl
ine here:=0A=0Ahttp://forums.matronics.com/viewtopic.php?p=277662#277662
- - - - - - - - - - - - - - - -Matt Dralle, L
=========================0A
====================
Message 13
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Subject: | Re: Rotax 912 Question |
The link you have posted do not take me anywhere except an e-mail page. I would
like to check this site out if you can send me a good link to go to.
Thanks
Rick Lewis
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=277673#277673
Message 14
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Subject: | Re: Rotax 912 Question |
They have thermostats and they are set to 180F. It has one inlet and it goes where
all the lines are a single line at the radiator. FD has been using them for
3 years.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=277676#277676
Message 15
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It is harmonics/vibration and different internal parts in the 912 are stronger.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=277677#277677
Message 16
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Subject: | Re: Rotax 912 Question |
> They have thermostats and they are set to 180F. It has one inlet and it
goes where all the lines are a single line at the radiator. FD has been
using them for 3 years.
>
> --------
> Roger Lee
Roger L/Gang:
I placed my thermostat, on my original 912, before they were tagged as UL
and ULS, between radiator outlet and waterpump inlet. Had a serious
problem blowing water out of the header tank cap because the water pump is
overpressurizing the system when the thermostat is closed. How much? I
don't know. I did not have a coolant pressure gauge installed, but would be
interesting to know how much pressure it was creating above pressure caused
by increased coolant temp. This may have also caused cavitation in the
water pump. Never could figure out how to solve the problem without putting
thermostats between waterpump outlets and header tank.
How did FD (?) overcome this overpressurization problem?
BTW: Who is FD?
john h
mkIII
Message 17
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65 inches between outside of tires on my Firestar II
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=277688#277688
Message 18
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Subject: | Re: Tire Balance |
Try to just achieve STATIC wheel balance. You can apply weight at the light point
anywhere on the wheel, whether it is on the inside surface (but need brake
clearance), outside surface or fabricate steel plate and attach to a wheel thru-bolt
(or two). By static balancing only, you can easily do it yourself and
can probably get close enough by just hanging the wheel loosely on the axle
and letting it rotate to the heavy point - no wheel balancer required.
Another possibility, if the tire is way out of balance is to mark the light spot
as above and have a tire shop vulcanize one or two hot patches inside the tire
to lessen the amount of wheel weights required.
Static balancing is the accepted method used on most certified light aircraft.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=277692#277692
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