Today's Message Index:
----------------------
0. 12:04 AM - Make Sure You're Listed! List of Contributors Published in December! (Matt Dralle)
1. 06:53 AM - Re: Engine Shut Down (Noel Loveys)
2. 08:01 AM - Re: Engine Shut Down (Noel Loveys)
3. 12:25 PM - Re: Engine Shut Down (Martin Hone)
4. 03:40 PM - Re: Engine Shut Down (FLYaDIVE)
5. 05:09 PM - Re: Engine Shut Down (Dave)
Message 0
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| Subject: | Make Sure You're Listed! List of Contributors Published |
in December!
Dear Listers,
The List of Contributors (LOC) is just around the corner! In December I post a
list of everyone that so generously made a Contribution to support the Lists.
Its my way of publicly thanking everyone that took a minute to show their appreciation
for the Lists.
Won't you take minute and assure that your name is on the upcoming LOC? Tell others
that you appreciate the Lists. Making a Contribution to support the Lists
is fast and easy using your Visa, MasterCard, or Paypal account:
http://www.matronics.com/contribution
Or, drop a personal check in the mail to:
Matt Dralle / Matronics
581 Jeannie Way
Livermore CA 94550
USA
I would like to thank everyone that has so generously made a Contribution thus
far during this year's List Fund Raiser! Remember that its YOUR support that
keeps these Lists running and improving! Don't forget to include a little comment
about how the Lists have
helped you!
Thank you!
Matt Dralle
Matronics Email List Administrator
Message 1
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| Subject: | Engine Shut Down |
Martin:
You have #2 backward. A broken P-Lead won't allow the ignition to be
grounded out... therefore not allowing the pilot any other method of
stopping the engine other than fuel starvation. It will start just fine.
Noel
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of Martin
Hone
Sent: November 19, 2010 11:22 PM
Subject: Re: JabiruEngine-List: Engine Shut Down
Hi G.A.
I wouldn;t be too sure about that. I think you will find that the CHT's of
any well running Continental or Lycoming are pretty much the same as for a
well running Jab. That would be between 300 and 380 degrees F in my
experience. The reason these engines use idle mixture cut-off is
1. Because they can
2. A broken 'P' lead won't allow the engine to fire if the prop is moved
3. Highly leaded fuels provide more material that can glow in the combustion
chamber and will keep the engine running-on even if the mags are switched
off.
Cheers
Martin
On Sat, Nov 20, 2010 at 12:27 PM, <zeprep251@aol.com> wrote:
Mike,
If you have a mixture control on your carburetor you could shut it off that
way.But if you want to kill it by turning off the fuel selector,be prepared
to wait for a couple minutes for the fuel bowl on the Bing to run dry.
General aviation engines run a couple hundred degrees higher cylinder head
temps and would run on with out spark ignition,you had to starve it of fuel
to kill it.
G.Aman Jabiru 2200A 600 hrs
-----Original Message-----
From: MHerder <michaelherder@beckgroup.com>
Sent: Thu, Nov 18, 2010 9:44 pm
Subject: JabiruEngine-List: Engine Shut Down
<michaelherder@beckgroup.com>
Manual on my 3300 says just turn the ignition off to shut it down... Any
reason
why we should or shouldn't be shutting it off buy shutting off the fuel?
--------
One Rivet at a Time!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=319979#319979
==========
_blank">www.aeroelectric.com
" target="_blank">www.buildersbooks.com
="_blank">www.homebuilthelp.com
_blank">http://www.matronics.com/contribution
==========
ist" target="_blank">http://www.matronics.com/Navigator?JabiruEngine-List
==========
tp://forums.matronics.com
==========
_blank">www.aeroelectric.com
.com" target="_blank">www.buildersbooks.com
="_blank">www.homebuilthelp.com
_blank">http://www.matronics.com/contribution
ist" target="_blank">http://www.matronics.com/Navigator?JabiruEngine-List
tp://forums.matronics.com
Message 2
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| Subject: | Engine Shut Down |
Barry:
I think you answered your own question. The fuel injectors are electrically
operated. They spray a fine mist of fuel into the cylinders just before the
spark is given. Spraying cold fuel into the cylinder at that time causes
the cylinder to cool a little ( may or may not be appreciable ) but also it
means there isn't any fuel there detonate. Anti knock detectors will also
adjust the timing of the fuel injection to prevent knocking.
Noel
Loaded Question: If the flash point of gas is so low, below that of
internal CHT why do we not Pre-Ignition all the time?
Barry
On Fri, Nov 19, 2010 at 9:27 PM, <zeprep251@aol.com> wrote:
Mike,
If you have a mixture control on your carburetor you could shut it off that
way.But if you want to kill it by turning off the fuel selector,be prepared
to wait for a couple minutes for the fuel bowl on the Bing to run dry.
General aviation engines run a couple hundred degrees higher cylinder head
temps and would run on with out spark ignition,you had to starve it of fuel
to kill it.
G.Aman Jabiru 2200A 600 hrs
-----Original Message-----
From: MHerder <michaelherder@beckgroup.com>
Sent: Thu, Nov 18, 2010 9:44 pm
Subject: JabiruEngine-List: Engine Shut Down
<michaelherder@beckgroup.com>
Manual on my 3300 says just turn the ignition off to shut it down... Any
reason
why we should or shouldn't be shutting it off buy shutting off the fuel?
--------
One Rivet at a Time!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=319979#319979
==========
_blank">www.aeroelectric.com
" target="_blank">www.buildersbooks.com
="_blank">www.homebuilthelp.com
_blank">http://www.matronics.com/contribution
==========
ist" target="_blank">http://www.matronics.com/Navigator?JabiruEngine-List
==========
tp://forums.matronics.com
==========
_blank">www.aeroelectric.com
.com" target="_blank">www.buildersbooks.com
="_blank">www.homebuilthelp.com
_blank">http://www.matronics.com/contribution
ist" target="_blank">http://www.matronics.com/Navigator?JabiruEngine-List
tp://forums.matronics.com
Message 3
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| Subject: | Re: Engine Shut Down |
Hi Noel,
You are correct. What I was trying to say was that a broken 'P' lead would
prevent you shutting down the engine,
Cheers and thanks
Martin
On Mon, Nov 22, 2010 at 12:50 AM, Noel Loveys <noelloveys@yahoo.ca> wrote:
> Martin:
>
>
> You have #2 backward. A broken P-Lead won=92t allow the ignition to be
> grounded out... therefore not allowing the pilot any other method of
> stopping the engine other than fuel starvation. It will start just fine.
>
>
> Noel
>
>
> *From:* owner-jabiruengine-list-server@matronics.com [mailto:
> owner-jabiruengine-list-server@matronics.com] *On Behalf Of *Martin Hone
> *Sent:* November 19, 2010 11:22 PM
> *To:* jabiruengine-list@matronics.com
>
> *Subject:* Re: JabiruEngine-List: Engine Shut Down
>
>
> Hi G.A.
>
>
> I wouldn;t be too sure about that. I think you will find that the CHT's
of
> any well running Continental or Lycoming are pretty much the same as for
a
> well running Jab. That would be between 300 and 380 degrees F in my
> experience. The reason these engines use idle mixture cut-off is
>
> 1. Because they can
>
> 2. A broken 'P' lead won't allow the engine to fire if the prop is moved
>
> 3. Highly leaded fuels provide more material that can glow in the
> combustion chamber and will keep the engine running-on even if the mags a
re
> switched off.
>
>
> Cheers
>
>
> Martin
>
> On Sat, Nov 20, 2010 at 12:27 PM, <zeprep251@aol.com> wrote:
>
> Mike,
> If you have a mixture control on your carburetor you could shut it off th
at
> way.But if you want to kill it by turning off the fuel selector,be prepar
ed
> to wait for a couple minutes for the fuel bowl on the Bing to run dry.
> General aviation engines run a couple hundred degrees higher cylinder hea
d
> temps and would run on with out spark ignition,you had to starve it of fu
el
> to kill it.
> G.Aman Jabiru 2200A 600 hrs
>
>
> -----Original Message-----
> From: MHerder <michaelherder@beckgroup.com>
> To: jabiruengine-list <jabiruengine-list@matronics.com>
> Sent: Thu, Nov 18, 2010 9:44 pm
> Subject: JabiruEngine-List: Engine Shut Down
>
up.com>
>
>
> Manual on my 3300 says just turn the ignition off to shut it down... Any
reason
>
>
> why we should or shouldn't be shutting it off buy shutting off the fuel?
>
>
> --------
>
>
> One Rivet at a Time!
>
>
> Read this topic online here:
>
>
> http://forums.matronics.com/viewtopic.php?p=319979#319979
>
>
> ==========
>
>
> _blank">www.aeroelectric.com
>
>
> " target="_blank">www.buildersbooks.com
>
>
> ="_blank">www.homebuilthelp.com
>
>
> _blank">http://www.matronics.com/contribution
>
>
> ==========
>
>
> ist" target="_blank">http://www.matronics.com/Navigator?JabiruEngine-Li
st
>
>
> ==========
>
>
> tp://forums.matronics.com
>
>
> ==========
>
>
> * *
>
> * *
>
> *_blank">www.aeroelectric.com*
>
> *.com" target="_blank">www.buildersbooks.com*
>
> *="_blank">www.homebuilthelp.com*
>
> *_blank">http://www.matronics.com/contribution*
>
> *ist" target="_blank">http://www.matronics.com/Navigator?JabiruEngine-L
ist*
>
> *tp://forums.matronics.com*
>
>
> * *
>
> * *
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> *www.aeroelectric.com*
>
> *www.buildersbooks.com*
>
> *www.homebuilthelp.com*
>
> **
>
> *http://www.matronics.com/contribution*
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> *http://www.matronics.com/Navigator?JabiruEngine-List*
>
> **
>
> **
>
> *http://forums.matronics.com*
>
> **
>
> *
>
===========
===========
===========
============*
>
>
Message 4
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| Subject: | Re: Engine Shut Down |
Noel:
So how do you explain it for NON-Fuel Injected engines?
Or engines WITHOUT anti-knock equipment?
And even those fuel injected engine WITHOUT electric injectors?
Remember... I said it was a LOADED QUESTION :-)
Barry
On Sun, Nov 21, 2010 at 10:56 AM, Noel Loveys <noelloveys@yahoo.ca> wrote:
> Barry:
>
>
> I think you answered your own question. The fuel injectors are
> electrically operated. They spray a fine mist of fuel into the cylinders
> just before the spark is given. Spraying cold fuel into the cylinder at
> that time causes the cylinder to cool a little ( may or may not be
> appreciable ) but also it means there isn=92t any fuel there detonate.
Anti
> knock detectors will also adjust the timing of the fuel injection to prev
ent
> knocking.
>
>
> Noel
>
>
> Loaded Question: If the flash point of gas is so low, below that of
> internal CHT why do we not Pre-Ignition all the time?
>
>
> Barry
>
>
> On Fri, Nov 19, 2010 at 9:27 PM, <zeprep251@aol.com> wrote:
>
> Mike,
> If you have a mixture control on your carburetor you could shut it off th
at
> way.But if you want to kill it by turning off the fuel selector,be prepar
ed
> to wait for a couple minutes for the fuel bowl on the Bing to run dry.
> General aviation engines run a couple hundred degrees higher cylinder hea
d
> temps and would run on with out spark ignition,you had to starve it of fu
el
> to kill it.
> G.Aman Jabiru 2200A 600 hrs
>
>
> -----Original Message-----
> From: MHerder <michaelherder@beckgroup.com>
> To: jabiruengine-list <jabiruengine-list@matronics.com>
> Sent: Thu, Nov 18, 2010 9:44 pm
> Subject: JabiruEngine-List: Engine Shut Down
>
up.com>
>
>
> Manual on my 3300 says just turn the ignition off to shut it down... Any
reason
>
>
> why we should or shouldn't be shutting it off buy shutting off the fuel?
>
>
> --------
>
>
> One Rivet at a Time!
>
>
> Read this topic online here:
>
>
> http://forums.matronics.com/viewtopic.php?p=319979#319979
>
>
> ==========
>
>
> _blank">www.aeroelectric.com
>
>
> " target="_blank">www.buildersbooks.com
>
>
> ="_blank">www.homebuilthelp.com
>
>
> _blank">http://www.matronics.com/contribution
>
>
> ==========
>
>
> ist" target="_blank">http://www.matronics.com/Navigator?JabiruEngine-Li
st
>
>
> ==========
>
>
> tp://forums.matronics.com
>
>
> ==========
>
>
> * *
>
> * *
>
> *_blank">www.aeroelectric.com*
>
> *.com" target="_blank">www.buildersbooks.com*
>
> *="_blank">www.homebuilthelp.com*
>
> *_blank">http://www.matronics.com/contribution*
>
> *ist" target="_blank">http://www.matronics.com/Navigator?JabiruEngine-L
ist*
>
> *tp://forums.matronics.com*
>
>
> * *
>
> * *
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> *www.aeroelectric.com*
>
> *www.buildersbooks.com*
>
> *www.homebuilthelp.com*
>
> **
>
> *http://www.matronics.com/contribution*
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> *http://www.matronics.com/Navigator?JabiruEngine-List*
>
> **
>
> **
>
> *http://forums.matronics.com*
>
> **
>
> *
>
===========
===========
===========
============*
>
>
Message 5
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| Subject: | Re: Engine Shut Down |
The autoignition temp of gasoline is just below 500 deg., below that it
needs an ignition source. So maybe the answer is that flash point is not
autoignition temp.
Noel
Loaded Question: If the flash point of gas is so low, below that of
internal CHT why do we not Pre-Ignition all the time?
Barry
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