 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
max8992
Joined: 28 Jul 2011
Posts: 142
|
 Posted: Mon Dec 09, 2013 6:26 am Post subject: Restart the engine after a flight |
 |
|
Hi There All,
I have a 912ULS mounted on an Europa XS with almost 500 hours which runs perfectly… when it runs:
<![if !supportLists]>- <![endif]>Cold start is easy and ok even in cold weather (assuming battery is correctly charged and can drive the engine to 600 rpm)
<![if !supportLists]>- <![endif]>Restart after a 30 minutes stop following a flight is difficult with bubbles visible via the overflow tube creating irregular run and smell of gasoline. After few (long) seconds it comes back to normal and shows no other symptoms.
Any advice?
Max Cointe
mcointe(at)free.fr (mcointe(at)free.fr)
F-PMLH Europa XS_TriGear
Kit #560-2003 912ULS/AirmasterAP332 490 hours
F-PLDJ Dyn’Aéro MCR 4S
Kit #27-2002 912ULSFR/MTProp MTV7A 1600 heures
[quote][b]
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
_________________
Max8992
Europa XS #560 F-PMLH |
|
| Back to top |
|
 |
jonathan(at)entry.co.za
Guest
|
| Posted: Mon Dec 09, 2013 7:08 am Post subject: Restart the engine after a flight |
|
|
Hi Max,
Do you have a Return to tank?
I have had the same problem for 500+hrs. I do NOT have a return to tank. I found it to be a build up of pressure in the fuel line, under the cowl of my Zenith CH601XLb. (All the heat seems to come out of the engine.) The fuel pump has a check valve, and hence the fuel will not return on it's own.
All I do now is switch off the fuel, when taxiing to the hangar, and when I stop I open the oil filler cowl flap, to let out the hot air. The lack of fuel in the lines, (used up in the taxi) and the little bit of extra cooling seems to have helped a lot with this rich start problem.
I also find that if I let it stand for an hour, the problem also goes away.
Hope this helps
Jonathan
[quote] ---
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
|
|
| Back to top |
|
|
peteohms
Joined: 31 Oct 2007
Posts: 224
Location: Leander, TX
|
| Posted: Mon Dec 09, 2013 8:20 am Post subject: Restart the engine after a flight |
|
|
Sounds like flooding. I turn off my fuel valve and let it run awhile before shutting down. Seems to take care of that problem.
Pete
Leander, Tx
On Dec 9, 2013, at 8:25 AM, "Max Cointe (Free)" <mcointe(at)free.fr (mcointe(at)free.fr)> wrote:
[quote] 1024x768 <![endif]--> Clean 21 false false false FR X-NONE X-NONE MicrosoftInternetExplorer4 <![endif]--> <![endif]-->/* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tableau Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-hansi-font-family:Calibri; mso-fareast-language:EN-US;} <![endif]--> <![endif]--> <![endif]-->
Hi There All,
I have a 912ULS mounted on an Europa XS with almost 500 hours which runs perfectly… when it runs:
- Cold start is easy and ok even in cold weather (assuming battery is correctly charged and can drive the engine to 600 rpm)
- Restart after a 30 minutes stop following a flight is difficult with bubbles visible via the overflow tube creating irregular run and smell of gasoline. After few (long) seconds it comes back to normal and shows no other symptoms.
Any advice?
Max Cointe
mcointe(at)free.fr (mcointe(at)free.fr)
F-PMLH Europa XS_TriGear
Kit #560-2003 912ULS/AirmasterAP332 490 hours
F-PLDJ Dyn’Aéro MCR 4S
Kit #27-2002 912ULSFR/MTProp MTV7A 1600 heures
| Quote: |
===================================
ctric.com
| Quote: | www.buildersbooks.com
uilthelp.com
|
otstore.com
matronics.com/contribution
===================================
st">http://www.matronics.com/Navigator?RotaxEngines-List
===================================
cs.com
===================================
|
[b]
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
_________________
Pete
Leander, TX
Kitfox III, 912ul, Grove |
|
| Back to top |
|
|
vernon11
Joined: 03 Aug 2010
Posts: 14
|
| Posted: Mon Dec 09, 2013 9:06 am Post subject: Restart the engine after a flight |
|
|
I had the same problem. Balanced the carbs, and all was well.
Vernon.
From: Pete Christensen (pchristensen10(at)austin.rr.com)
Sent: Monday, December 09, 2013 6:20 PM
To: rotaxengines-list(at)matronics.com (rotaxengines-list(at)matronics.com)
Subject: Re: Restart the engine after a flight
Sounds like flooding. I turn off my fuel valve and let it run awhile before shutting down. Seems to take care of that problem.
Pete
Leander, Tx
On Dec 9, 2013, at 8:25 AM, "Max Cointe (Free)" <mcointe(at)free.fr (mcointe(at)free.fr)> wrote:
[quote]
Hi There All,
I have a 912ULS mounted on an Europa XS with almost 500 hours which runs perfectly… when it runs:
<!--[if !supportLists]-->- <!--[endif]-->Cold start is easy and ok even in cold weather (assuming battery is correctly charged and can drive the engine to 600 rpm)
<!--[if !supportLists]-->- <!--[endif]-->Restart after a 30 minutes stop following a flight is difficult with bubbles visible via the overflow tube creating irregular run and smell of gasoline. After few (long) seconds it comes back to normal and shows no other symptoms.
Any advice?
Max Cointe
mcointe(at)free.fr (mcointe(at)free.fr)
F-PMLH Europa XS_TriGear
Kit #560-2003 912ULS/AirmasterAP332 490 hours
F-PLDJ Dyn’Aéro MCR 4S
Kit #27-2002 912ULSFR/MTProp MTV7A 1600 heures
| Quote: |
==========
ctric.com
| Quote: | www.buildersbooks.com
uilthelp.com
|
otstore.com
matronics.com/contribution
==========
st">http://www.matronics.com/Navigator?RotaxEngines-List
==========
cs.com
==========
|
href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.homebuilthelp.com">www.homebuilthelp.com
href="http://www.mypilotstore.com">www.mypilotstore.com
href="http://www.mrrace.com">www.mrrace.com
href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?RotaxEngines-List">http://www.matronics.com/Navigator?RotaxEngines-List
href="http://forums.matronics.com">http://forums.matronics.com
[b]
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
|
|
| Back to top |
|
|
hgmckay
Joined: 23 May 2006
Posts: 397
|
| Posted: Mon Dec 09, 2013 4:20 pm Post subject: Restart the engine after a flight |
|
|
Don’t know your fuel piping situation, but it clearly sounds like you are flooding the engine. If you have an electric fuel pump in line with the mechanical pump that is on the engine turn the electric pump off and try starting the engine using the Rotax start procedure for a hot or warm engine. Don’t use the cold engine start procedure.
Hugh G. McKay III, P.E.
Senior Consultant
Worldwide Engineering Inc.
4090 North NC Hwy. 16
Denver, NC 28037
Ph. 704-661-8271
Fax 704-483-5466
email hgmckay(at)bellsouth.net
http://www.wwegeo.com
From: Vernon Mitchell (vernon11(at)xsinet.co.za)
Sent: Monday, December 09, 2013 12:05 PM
To: rotaxengines-list(at)matronics.com (rotaxengines-list(at)matronics.com)
Subject: Re: Restart the engine after a flight
I had the same problem. Balanced the carbs, and all was well.
Vernon.
From: Pete Christensen (pchristensen10(at)austin.rr.com)
Sent: Monday, December 09, 2013 6:20 PM
To: rotaxengines-list(at)matronics.com (rotaxengines-list(at)matronics.com)
Subject: Re: Restart the engine after a flight
Sounds like flooding. I turn off my fuel valve and let it run awhile before shutting down. Seems to take care of that problem.
Pete
Leander, Tx
On Dec 9, 2013, at 8:25 AM, "Max Cointe (Free)" <mcointe(at)free.fr (mcointe(at)free.fr)> wrote:
[quote]
Hi There All,
I have a 912ULS mounted on an Europa XS with almost 500 hours which runs perfectly… when it runs:
<!--[if !supportLists]-->- <!--[endif]-->Cold start is easy and ok even in cold weather (assuming battery is correctly charged and can drive the engine to 600 rpm)
<!--[if !supportLists]-->- <!--[endif]-->Restart after a 30 minutes stop following a flight is difficult with bubbles visible via the overflow tube creating irregular run and smell of gasoline. After few (long) seconds it comes back to normal and shows no other symptoms.
Any advice?
Max Cointe
mcointe(at)free.fr (mcointe(at)free.fr)
F-PMLH Europa XS_TriGear
Kit #560-2003 912ULS/AirmasterAP332 490 hours
F-PLDJ Dyn’Aéro MCR 4S
Kit #27-2002 912ULSFR/MTProp MTV7A 1600 heures
| Quote: |
==========
ctric.com
| Quote: | www.buildersbooks.com
uilthelp.com
|
otstore.com
matronics.com/contribution
==========
st">http://www.matronics.com/Navigator?RotaxEngines-List
==========
cs.com
==========
|
href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.homebuilthelp.com">www.homebuilthelp.com
href="http://www.mypilotstore.com">www.mypilotstore.com
href="http://www.mrrace.com">www.mrrace.com
href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?RotaxEngines-List">http://www.matronics.com/Navigator?RotaxEngines-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.homebuilthelp.com">www.homebuilthelp.com
href="http://www.mypilotstore.com">www.mypilotstore.com
href="http://www.mrrace.com">www.mrrace.com
href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?RotaxEngines-List">http://www.matronics.com/Navigator?RotaxEngines-List
href="http://forums.matronics.com">http://forums.matronics.com
[b]
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
|
|
| Back to top |
|
|
Roger Lee
Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.
|
| Posted: Mon Dec 09, 2013 8:03 pm Post subject: Re: Restart the engine after a flight |
|
|
Hi Max,
As someone ask, do you have an electric pump? Are you starting with just a single pump? Are you using the choke on the second start? What is the idle set for (after it warms)? Do you apply any throttle during the start? When was the last time you did a carb sync? What are your plugs gapped at?
These all play an important part and if you can fill in these questions I would bet we can help.
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
_________________
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056 |
|
| Back to top |
|
|
max8992
Joined: 28 Jul 2011
Posts: 142
|
| Posted: Tue Dec 10, 2013 12:50 am Post subject: Restart the engine after a flight |
|
|
Hi Roger, many thanks to you and to everyone who answered.
I have a fuel tank return and an electric fuel pump. After warm the idle set
is 1600 rpm. I do use the hot start procedure with no shoke (at least
usually. For this one I'm not really sure). The carb sync should be correct
as the engine runs with no vibe whatever is the rpm. The sparkplugs have 15
hours and standard gap.
All opinions converge to a flood which could have been induced by using a
(not awared) wrong procedure and/or some vapor lock, which I already
experimented but at higher weather temp.
I will anyhow retain the process to close the fuel valve before turning of
the engine
Max Cointe
mcointe(at)free.fr
F-PMLH Europa XS_TriGear
Kit #560-2003 912ULS/AirmasterAP332 490 hours
F-PLDJ Dyn’Aéro MCR 4S
Kit #27-2002 912ULSFR/MTProp MTV7A 1600 heures
-----Message d'origine-----
De : owner-rotaxengines-list-server(at)matronics.com
[mailto:owner-rotaxengines-list-server(at)matronics.com] De la part de Roger
Lee
Envoyé : mardi 10 décembre 2013 05:03
À : rotaxengines-list(at)matronics.com
Objet : Re: Restart the engine after a flight
--> <ssadiver1(at)yahoo.com>
Hi Max,
As someone ask, do you have an electric pump? Are you starting with just a
single pump? Are you using the choke on the second start? What is the idle
set for (after it warms)? Do you apply any throttle during the start? When
was the last time you did a carb sync? What are your plugs gapped at?
These all play an important part and if you can fill in these questions I
would bet we can help.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated Rotax Repair Center - Heavy Maint.
Rated Home 520-574-1080 TRY HOME FIRST Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=415283#415283
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
_________________
Max8992
Europa XS #560 F-PMLH |
|
| Back to top |
|
|
Roger Lee
Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.
|
| Posted: Tue Dec 10, 2013 5:15 am Post subject: Re: Restart the engine after a flight |
|
|
Carb's can be out of sync quite a bit and many would never know. If they haven't been synced within the last 100 hrs. they are over due.
Your idle for a ULS is too low and this will add to hard starts if the throttle is left closed to that mark. This will add to excessive vibration to if you actually idle that low. Either set the idle up to around 1700-1800 or at least crack the throttle when starting. I don't know what standard gap is. I get them in shop shop from .020 to .038. The proper gap should be between .023-.027. During the winter either .023 cold climate or .025 for the southwest where winter climates are a little milder. Narrow gaps for cold weather and wider gaps for hot weather. There is a possibility of a little vapor lock. Are your fuel hoses in fire sleeve? This will not only protect you, but help a little with heat build up on the hose and vapor production. There is a slight possibility that you need to adjust your float level in the bowls.
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RotaxEngines-List |
|
_________________
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056 |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
