Today's Message Index:
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1. 06:45 AM - 447 needs some tweaking (2danglico)
2. 06:57 AM - Re: RotaxEngines-List Digest (Thom Riddle)
3. 10:09 AM - Rotax List: Re: 447 needs some tweaking (william sullivan)
4. 12:25 PM - Re: RotaxEngines-List Digest (Roger Lee)
5. 09:23 PM - Re: RotaxEngines-List (carl)
Message 1
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| Subject: | 447 needs some tweaking |
I recently bought a used Kolb Firestar with a freshly rebuilt (4Hrs) Rotax 447
single carb. I'm writing in hopes of getting some advise on getting it tuned up.
I'm a little concerned about the EGT/CHT temps I'm getting while operating
at speed. I'm getting a lot of surging and stumbling. It's difficult to find a
happy cruise RPM. Anything below 5000 RPM and it will slowly load up and begin
to lose RPM and run rough. When I try to nudge the throttle up a small amount,
I get a surge that puts me up to 5500 RPM. My EGT is only reading 850-900 and
my CHT is reading 300-325. I assumed this was indicating a over rich condition
but when I checked the plugs I found the healthy looking rust/brown color
I've seen in the books. I'm thinking that I may benefit from dropping the neddle
down one notch to lean it out and see if I can bring my EGT and CHT in line.
Does anyone have any feedback or opinions? Any help I can get will be appreciated.
-John
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http://forums.matronics.com/viewtopic.php?p 3161#203161
Message 2
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| Subject: | Re: RotaxEngines-List Digest |
Jim,
I just got back from a ten day trip without internet access. Thanks for relating
your experience with F4040A and the results of your testing of other Tygon products.
That is why this list is so valuable to all.
--------
Thom Riddle
CFI-SP
Power Plant Mechanic
N221FA Allegro 2000 912UL
N197BG FS1/447
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Scratch any cynic, he said, and youll find a disappointed idealist.
George Carlin
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3165#203165
Message 3
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| Subject: | Rotax List: re: 447 needs some tweaking |
- John- sign up for the Matronics Kolb List.- Lots of information there
, too, especially on Rotax on a Kolb.
-
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-------------- Bill Sullivan
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| Subject: | Re: RotaxEngines-List Digest |
Hi Jim,
Please let me know how your test work out. I was looking for some clear hose for
use in the Flight Design CT for a fuel site tube in the cockpit. The tubing
we use turns dark brown in about a year with auto gas, 100LL doesn't cause the
discoloration. I talked to Tygon and they told me all their clear tubing would
eventually turn brown with auto fuel so a did not pursue this with them. I would
be very interested in how the SE200 works out. This is not a hot environment
for us, but does have fuel in it 24/7.
Good luck I hope it works out well.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
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http://forums.matronics.com/viewtopic.php?p 3252#203252
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| Subject: | Re: RotaxEngines-List |
Testing
Carl
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