Today's Message Index:
----------------------
1. 11:31 AM - Re: Engine hesitates when advancing throttle (Eddie Moran)
2. 05:35 PM - Re: M14PEngines-List Digest: 2 Msgs - 06/26/07 (Dan Brown)
3. 06:33 PM - Re: Engine hesitates when advancing throttle (david stroud)
Message 1
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| Subject: | Engine hesitates when advancing throttle |
To all,
JB Weld on the accelerator jet and all is well. Thanks to all that suggested
fixes.
Eddie Moran
Steve Culp <culpspecial@yahoo.com> wrote:
Our Sukoi was doing that back in 1991. Les Crowder told me to weld the jet
up redrill smaller. Then Ben Morfue studied the manual and said to just weld
the ****** up and I have been doing that every since on quite a few M-14Ps and
it has always taken the studder out of them.
The second thing that has been funny over the years is not many people adjust
the carbs and the mixture adjustment on the lower right needs to be adjusted
after the first few hours. Most M-14Ps mixture covers are still factory sealed
with the factory safety wire and tag on the cover.
Pretty easy to adjust. Just have someone in the plane and adjust at low and
intermediate rpms.
Steve Culp
BPA <BPA@bpaengines.com> wrote:
Just a thought, but would it be possible that when advancing the
throttle that the cable my have a little bit of deflection causing the arm to
not move immediately and then suddenly advances?
Allen Barrett
BPE, Inc.
-----Original Message-----
From: owner-m14pengines-list-server@matronics.com [mailto:owner-m14pengines-list-server@matronics.com] On Behalf Of Eddie Moran
Sent: Friday, June 22, 2007 9:30 AM
Subject: M14PEngines-List: Engine hesitates when advancing throttle
Hi,
I have a M14 installed in my Murphy Moose. The engine runs great and I have
flown the aircraft already.
Here is my situation. I have a Vernier throttle cable installed directly to
a fabricated throttle arm. We had determined that the original "arm" was too
short and gave us a very small throw with the direct cable.
While doing the "high speed" taxi tests I noted a strong hesitation while advancing
the throttle. The hesitation or "burp" accured right during the initial
throttle application. It was short but "disturbing". The engine then picked
back up and accelerated rapidly to full power.
I have done the throttle movement just using the "twist the blue knob" on the
Vernier cable and the acceleration is what you would expect by pushing in a
"normal" throttle. It only takes a few twists, say 4 or 5 to get a lot of engine
response.
I have inspected the carb for any loose or missing plugs or any anomalies.
There were none.
The air filter and air box are all OK.
I am thinking that the throttle arm on the carb might be a bit short creating
a "too small" of a throw when the throttle is "pushed in". Does this sound
like a likely fix?
Any other ideas or previous experience with this problem?
Eddie Moran
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Message 2
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| Subject: | Re: M14PEngines-List Digest: 2 Msgs - 06/26/07 |
I'm giving you flack for the electronic ignition,
FLACK,FLACK,FLACK.......lol
----- Original Message -----
From: "M14PEngines-List Digest Server" <m14pengines-list@matronics.com>
Sent: Wednesday, June 27, 2007 12:56 AM
Subject: M14PEngines-List Digest: 2 Msgs - 06/26/07
> *
>
> =================================================
> Online Versions of Today's List Digest Archive
> =================================================
>
> Today's complete M14PEngines-List Digest can also be found in either of
> the
> two Web Links listed below. The .html file includes the Digest formatted
> in HTML for viewing with a web browser and features Hyperlinked Indexes
> and Message Navigation. The .txt file includes the plain ASCII version
> of the M14PEngines-List Digest and can be viewed with a generic text
> editor
> such as Notepad or with a web browser.
>
> HTML Version:
>
>
> http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 07-06-26&Archive=M14PEngines
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> Text Version:
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>
> http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 07-06-26&Archive=M14PEngines
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>
> ===============================================
> EMail Version of Today's List Digest Archive
> ===============================================
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>
> ----------------------------------------------------------
> M14PEngines-List Digest Archive
> ---
> Total Messages Posted Tue 06/26/07: 2
> ----------------------------------------------------------
>
>
> Today's Message Index:
> ----------------------
>
> 1. 04:42 AM - Re: E Ignition (George Coy)
> 2. 12:15 PM - Re: E Ignition (Nic Weigelt)
>
>
> ________________________________ Message 1
> _____________________________________
>
>
> Time: 04:42:19 AM PST US
> From: "George Coy" <george@gesoco.com>
> Subject: RE: M14PEngines-List: E Ignition
>
> We have developed a prototype electronic ignition that is a drop in
> replacement for the M9 magneto. The reason for the development is that
> there
> is a short supply of m( magnetos and their replacement parts. I do not
> expect it will effect the fuels used.
> George
>
>
> _____
>
> From: owner-m14pengines-list-server@matronics.com
> [mailto:owner-m14pengines-list-server@matronics.com] On Behalf Of Nic
> Weigelt
> Sent: Monday, June 25, 2007 7:14 PM
> Subject: M14PEngines-List: E Ignition
>
>
> I'm told there is an electronic ignition in the works for the M-14P. Can
> anyone educate me here? One of the questions I have is if using
> electronic
> ignition will have an impact on type of fuel that can be used.
> Nic
>
>
> ________________________________ Message 2
> _____________________________________
>
>
> Time: 12:15:40 PM PST US
> From: Nic Weigelt <nicholasweigelt@shaw.ca>
> Subject: Re: M14PEngines-List: E Ignition
>
> We've been flying on mogas STCs for many years, and luckily we have not
> encountered the fuel issues you've outlined. We only have one company
> that sells blended fuel.
> Avgas is $4/g more expensive here (BC) than 91 purple farm gas (pretty
> sad for an oil producing nation), and given the 100-150 hrs/yr or more
> we expect to fly, it makes a huge difference.
> Re the ignition, hate to admit it, ahem, but as long standing flat
> engine types, we're a bit intimidated by all the sparks and smoke and
> oil etc, LOL. My dad is 68, is not a passionate monkeywrencher and has
> decades flying flat engines and wants things as simple as possible. The
> possibility of starting an engine backwards doesn't thrill him. Me, I
> am a monkeywrencher and don't care either way, I just badly need a
> bigger a/c on floats that's relatively cheap to fly and our third is a
> pressure welder and HD mechanic who hates the idea of even going to
> EFIS/EMS and is going to give me flak for looking into the electronic
> ignition. However, my father is contributing his M5 on floats toward
> the project so he calls the shots.
> Thanks for the input, much appreciated.
> Nic Weigelt
>
>
>
Message 3
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| Subject: | Re: Engine hesitates when advancing throttle |
Good for you Eddie....( hockey28, eh?...No Sens no..
But..does anyone know if the same affliction / cure is applicable
to the Huosai engine/carb? Thanks..
David Stroud Ottawa, Canada
C-FDWS Christavia
Fairchild 51 under construction
and on the gear...
----- Original Message -----
From: Eddie Moran
To: m14pengines-list@matronics.com
Sent: Wednesday, June 27, 2007 2:30 PM
Subject: RE: M14PEngines-List: Engine hesitates when advancing
throttle
To all,
JB Weld on the accelerator jet and all is well. Thanks to all that
suggested fixes.
Eddie Moran
Steve Culp <culpspecial@yahoo.com> wrote:
Our Sukoi was doing that back in 1991. Les Crowder told me to weld
the jet up redrill smaller. Then Ben Morfue studied the manual and said
to just weld the ****** up and I have been doing that every since on
quite a few M-14Ps and it has always taken the studder out of them.
The second thing that has been funny over the years is not many
people adjust the carbs and the mixture adjustment on the lower right
needs to be adjusted after the first few hours. Most M-14Ps mixture
covers are still factory sealed with the factory safety wire and tag on
the cover.
Pretty easy to adjust. Just have someone in the plane and adjust at
low and intermediate rpms.
Steve Culp
BPA <BPA@bpaengines.com> wrote:
Just a thought, but would it be possible that when advancing the
throttle that the cable my have a little bit of deflection causing the
arm to not move immediately and then suddenly advances?
Allen Barrett
BPE, Inc.
-----Original Message-----
From: owner-m14pengines-list-server@matronics.com
[mailto:owner-m14pengines-list-server@matronics.com] On Behalf Of Eddie
Moran
Sent: Friday, June 22, 2007 9:30 AM
To: m14pengines-list@matronics.com
Subject: M14PEngines-List: Engine hesitates when advancing
throttle
Hi,
I have a M14 installed in my Murphy Moose. The engine runs great
and I have flown the aircraft already.
Here is my situation. I have a Vernier throttle cable installed
directly to a fabricated throttle arm. We had determined that the
original "arm" was too short and gave us a very small throw with the
direct cable.
While doing the "high speed" taxi tests I noted a strong
hesitation while advancing the throttle. The hesitation or "burp"
accured right during the initial throttle application. It was short but
"disturbing". The engine then picked back up and accelerated rapidly to
full power.
I have done the throttle movement just using the "twist the blue
knob" on the Vernier cable and the acceleration is what you would expect
by pushing in a "normal" throttle. It only takes a few twists, say 4 or
5 to get a lot of engine response.
I have inspected the carb for any loose or missing plugs or any
anomalies. There were none.
The air filter and air box are all OK.
I am thinking that the throttle arm on the carb might be a bit
short creating a "too small" of a throw when the throttle is "pushed
in". Does this sound like a likely fix?
Any other ideas or previous experience with this problem?
Eddie Moran
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