Today's Message Index:
----------------------
1. 06:39 AM - Prop/Nose Wheel (steve@newcap.net)
2. 12:23 PM - Re: EGT's & Oil Temp (wingnut)
3. 01:42 PM - Re: Re: EGT's & Oil Temp (SUE MICHAELS)
4. 02:39 PM - Re: EGT's & Oil Temp (wingnut)
5. 04:46 PM - Re: Re: EGT's & Oil Temp (Lowell Fitt)
6. 08:36 PM - Re: Prop/Nose Wheel (Noel Loveys)
7. 08:42 PM - Oil Temp & EGT temp. (John Allen)
Message 1
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About 4 years ago my partner and I purchased a kitfox classic IV with a
Rotax 912 80 hp. that was to be used in our flight school in Baldwin
Ontario. The kit was about 60-70% complete when we bought it. After
trying to have it registered as an advanced ultralight and then as a home
built we have given up and will register it as a basic ultralight. It
should be painted this week. It is a tail dragger but would like to
convert it to a nose wheel to make it easier to train on. Does anyone know
of someone converting from a nosewheel to a tail dragger? Also we still
need a prop, what kind of prop works best with the 912 on a classic IV?
Thank you,
Steve Hall (Toronto Aerosport)
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| Subject: | Re: EGT's & Oil Temp |
The Rotax operators manual indicates the following for oil temp:
Min: 120
Max: 285
Normal: 190 to 230
I can't find anything in the manual regarding EGT. Mine runs a bit on the hot side
around 1450.
I'm curious. Is 5500 what you usually cruise at? According to the manual, that's
the max continuous rpm for the 912UL. Does it affect the tbo to run at that
speed all the time? I generally run at 5100 to 5200 and between 25 and 27 inch/hg
manifold pressure (depending on how big of a rush I'm in).
> A question for those with 80hp Rotax 912's. What do you consider a normal EGT
and Oil temp when at cruise at about 5500rpm?
--------
Luis Rodriguez
Model IV 1200
Rotax 912UL
Flying Weekly
Laurens, SC (34A)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 9520#209520
Message 3
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| Subject: | Re: EGT's & Oil Temp |
EGT -- look in (online) 912 installation manual under exhaust page 41.- N
ormal range 1470f ---max 1560f--- take off 1616f.=0A=0AGeorge=0A=0A=0A
=0A----- Original Message ----=0AFrom: wingnut <wingnut@spamarrest.com>=0AT
o: kitfox-list@matronics.com=0ASent: Monday, October 20, 2008 12:22:36 PM
=0ASubject: Kitfox-List: Re: EGT's & Oil Temp=0A=0A--> Kitfox-List message
posted by: "wingnut" <wingnut@spamarrest.com>=0A=0AThe Rotax operators manu
al indicates the following for oil temp:=0AMin: 120=0AMax: 285=0ANormal: 19
0 to 230=0A=0AI can't find anything in the manual regarding EGT. Mine runs
a bit on the hot side around 1450. =0A=0AI'm curious. Is 5500 what you usua
lly cruise at? According to the manual, that's the max continuous rpm for t
he 912UL. Does it affect the tbo to run at that speed all the time? I gener
ally run at 5100 to 5200 and between 25 and 27 inch/hg manifold pressure (d
epending on how big of a rush I'm in). =0A=0A=0A> A question for those with
80hp Rotax 912's. What do you consider a normal EGT and Oil temp when at c
ruise at about 5500rpm?=0A=0A=0A--------=0ALuis Rodriguez=0AModel IV 1200
=0ARotax 912UL=0AFlying Weekly=0ALaurens, SC (34A)=0A=0A=0A=0A=0ARead this
topic online here:=0A=0Ahttp://forums.matronics.com/viewtopic.php?p 952
=========================0A
============
Message 4
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| Subject: | Re: EGT's & Oil Temp |
Wow. So I'm actually running on the cold side at 1450. My Westach EGT gage only
goes up to 1500. Does this mean that my carbs are running a little too rich?
How does one adjust the EGT on a 912? Interesting that this is in the installation
manual but not the operating manual.
> EGT -- look in (online) 912 installation manual under exhaust page
> 41. Normal range 1470f -- max 1560f -- take off 1616f.
--------
Luis Rodriguez
Model IV 1200
Rotax 912UL
Flying Weekly
Laurens, SC (34A)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 9539#209539
Message 5
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| Subject: | Re: EGT's & Oil Temp |
Louis,
It has been long my understanding that the EGTs on a 912 are pretty much to
look at from time to time and wonder what the number means. The carbs are
altitude compensating up to about 10,000 ft. as I recall. The best check on
mixture is to look at the plugs. This is problematic in a way, because we
usually check the plugs after idling back to the hangar after running them
hard in flight. The idle and high speed jets are set separately. I have
heard that it is wise, from time to time, check the plug color after flight
with minimal idle - like pulling to the side of a grass strip - you lucky
guys.
Regarding the cruise RPM, the max cruise is 5500 and most of the guys I flew
with ran that or close to that as we allways flew at the speed of the
slowest airplane. I also know folks that use that as a max RPM - Just flew
in a SeaRay that the guy maxes at 5300. I have heard Eric Tucker say 5500
is fine for contiuous cruise. I also understand that the biggest factor
with RPM and the 912, is running it too slow in cruise as torsional
vibration at the lower RPMs are not good for the gearbox. Keep it over 5000
to 5100 minimum in cruise.
Lowell Fitt
Cameron Park, CA
Model IV-1200 R-912 UL
Currently focusing on the Left Wing Rudder Gapseal Cuffs and Landing Gear
Fairing
----- Original Message -----
From: "wingnut" <wingnut@spamarrest.com>
Sent: Monday, October 20, 2008 2:39 PM
Subject: Kitfox-List: Re: EGT's & Oil Temp
>
> Wow. So I'm actually running on the cold side at 1450. My Westach EGT gage
> only goes up to 1500. Does this mean that my carbs are running a little
> too rich? How does one adjust the EGT on a 912? Interesting that this is
> in the installation manual but not the operating manual.
>
>
>> EGT -- look in (online) 912 installation manual under exhaust page
>> 41. Normal range 1470f -- max 1560f -- take off 1616f.
>
>
> --------
> Luis Rodriguez
> Model IV 1200
> Rotax 912UL
> Flying Weekly
> Laurens, SC (34A)
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 9539#209539
>
>
>
Message 6
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Curiosity killed the cat.... Satisfaction...
What was the problem with registering as an amateur built?? Something to do
with inspections?? BTW most of these planes (Kitfox, Avid Etc.) are
conventional gear and students will probably have to convert when they get
their own planes. Training on conventional gear may not be all bad.
Noel
-----Original Message-----
From: owner-kitfox-list-server@matronics.com
[mailto:owner-kitfox-list-server@matronics.com] On Behalf Of
steve@newcap.net
Sent: Monday, October 20, 2008 11:09 AM
Subject: Kitfox-List: Prop/Nose Wheel
About 4 years ago my partner and I purchased a kitfox classic IV with a
Rotax 912 80 hp. that was to be used in our flight school in Baldwin
Ontario. The kit was about 60-70% complete when we bought it. After
trying to have it registered as an advanced ultralight and then as a home
built we have given up and will register it as a basic ultralight. It
should be painted this week. It is a tail dragger but would like to
convert it to a nose wheel to make it easier to train on. Does anyone know
of someone converting from a nosewheel to a tail dragger? Also we still
need a prop, what kind of prop works best with the 912 on a classic IV?
Thank you,
Steve Hall (Toronto Aerosport)
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Message 7
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| Subject: | Oil Temp & EGT temp. |
A question for those with an 80 ho Rotax 912. What do you look for as normal EGT
and Oil Temp when cruising at about 5500rpm?
Chuck
Kitfox Model IV
I can't give those numbers on mine right now but wanted to note that with the Ivoprop
it seems to do best at 5000 RPM, I don't cruise it at 5500.
JA KF IV Speedster 912UL
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