Today's Message Index:
----------------------
1. 05:37 AM - Re: Rotax idle springs/stops (Catz631@aol.com)
2. 07:38 AM - 914 Turbo boost (Paul McAllister)
3. 08:04 AM - Re: Replacing throttle return springsReplacing throttle return springs (Tommy Walker)
4. 10:18 AM - Re: 914 Turbo boost (Joe Ronco)
Message 1
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| Subject: | Re: Rotax idle springs/stops |
Giles ,Roger and the rest, thanks for your input! I don't have another
throttle stop other then the ones on the Bing carb so I will try to remedy that.
The
weaker springs(throttle return springs from an auto parts store) I installed
seem to help the throttle action alot. They will still move the throttles to
full power with cable breakage but are not as strong as the original equipment
springs.I do have the flexable cable throttle.
I have not been using flap much on landing because the flap lever is on the
floor which is a long reach for my short arms it also takes a huge amount of
back pressure on the stick on final in a Kitfox (I don't have a trim system)
But I will use more flaps rather than the "slip and plop" system to get it
down. I am gradually getting use to "dialing in" 2000 rpm on the Vernier throttle
and leaving it there for landing.It is weird though.
My prior aircraft was a beautiful Piper Pacer which flew a bit differently.
I sold it because I was tired of the FAA hassling me every year on my medical.
I sure am having fun with the Kitfox though !
Regards,
Dick Maddux
Fox 4-1200
Rotax 912 UL
**************************************See AOL's top rated recipes
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Message 2
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Hi all,
I am looking for some ideas on a problem with my 914T. I had the carburettors
overhauled by Lockwood aviation and after reassembling it I have a new problem.
I can get 34" of boost at 100% throttle setting on take off at 1000' msl, but when
I climb the maximum boost available decreases with altitude. For example
I get about 27" at 8,500', and 24" and 12,500.
So far I have checked the following:
- Reseated / checked the TCU cable connections to the air box
- Checked for leaks / tightness on the carburettors
- Checked to see if the waste gate cycles properly when the TCU is turned on
- Calibrated the throttle positions on the TCU with my laptop
I haven't disconnected to cable to the waste gate yet to check if I can get full
movement on the waste gate because its way too cold to work in the hanger.
The next time the weather permits flying I was thinking of connecting my laptop
to the TCU and see what the parameters are saying. For example if the air box
temperature sensor is faulty the TCU might interpret this as over temp and not
allow the waste gate to close.
Anyhow, I would appreciate ideas on this. It may be that the carburettor overhaul
is unrelated, but I thought I'd mention it because it was what had been changed
in recent times.
Regards, Paul
Never miss a thing. Make Yahoo your home page.
http://www.yahoo.com/r/hs
Message 3
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| Subject: | Re: Replacing throttle return springsReplacing throttle |
return springs
Hi,
Take a look at this link. This builder substituted springs with a lighter
force for the standard ones.
Be careful.
http://www.ch701.com/webmaster/Jon/deer%20hunting/jon_crash.htm
Tommy Walker in Alabama
Do Not Archive.
Message 4
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I don't know much about turbo charging but the articles in the following
link might help.
http://www.kellyaerospace.com/articles/Turbocharging.pdf
Joe R
From: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Paul
McAllister
Sent: Thursday, December 27, 2007 7:59 AM
Subject: RotaxEngines-List: 914 Turbo boost
Hi all,
I am looking for some ideas on a problem with my 914T. I had the
carburettors overhauled by Lockwood aviation and after reassembling it I
have a new problem.
I can get 34" of boost at 100% throttle setting on take off at 1000' msl,
but when I climb the maximum boost available decreases with altitude. For
example I get about 27" at 8,500', and 24" and 12,500.
So far I have checked the following:
- Reseated / checked the TCU cable connections to the air box
- Checked for leaks / tightness on the carburettors
- Checked to see if the waste gate cycles properly when the TCU is turned
on
- Calibrated the throttle positions on the TCU with my laptop
I haven't disconnected to cable to the waste gate yet to check if I can get
full movement on the waste gate because its way too cold to work in the
hanger.
The next time the weather permits flying I was thinking of connecting my
laptop to the TCU and see what the parameters are saying. For example if
the air box temperature sensor is faulty the TCU might interpret this as
over temp and not allow the waste gate to close.
Anyhow, I would appreciate ideas on this. It may be that the carburettor
overhaul is unrelated, but I thought I'd mention it because it was what had
been changed in recent times.
Regards, Paul
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