 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
kheindl(at)msn.com
Guest
|
 Posted: Thu Sep 26, 2013 3:00 pm Post subject: Mag drop |
 |
|
I have excessive mag drop on one magneto and am not sure where to look for the problem. Would anyone have any guidelines for this ? I have someone's course notes which state that: if you pull the choke while running on the bad mag, and if there is any change in rpm, then it is most likely a carb problem. If there is no change then it is an ignition problem. I get an increase in rpm.The engine ran fine 12 months ago. Since then I changed and re-arranged all fuel lines. How would I identify the faulty carburetor ? And then what do I look for ?
Any hints greatly appreciated.
Karl
[quote][b]
| | - The Matronics Europa-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?Europa-List |
|
|
|
| Back to top |
|
 |
ptag.dev(at)tiscali.co.uk
Guest
|
| Posted: Thu Sep 26, 2013 6:16 pm Post subject: Mag drop |
|
|
Hi! Karl, it sound stupidly simple but I recently twice had a plug lead fall off ? I have now fitted plastic cable ties as vertical restrainers.
Regards
Bob Harrison G-PTAG
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Karl Heindl
Sent: 27 September 2013 00:00
To: europa-list(at)matronics.com
Subject: Mag drop
I have excessive mag drop on one magneto and am not sure where to look for the problem. Would anyone have any guidelines for this ? I have someone's course notes which state that: if you pull the choke while running on the bad mag, and if there is any change in rpm, then it is most likely a carb problem. If there is no change then it is an ignition problem. I get an increase in rpm.
The engine ran fine 12 months ago. Since then I changed and re-arranged all fuel lines. How would I identify the faulty carburetor ? And then what do I look for ?
Any hints greatly appreciated.
Karl
| Quote: | | http://www.matronics.com/Navigator?Europa-List |
01234567
[quote][b]
| | - The Matronics Europa-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?Europa-List |
|
|
|
| Back to top |
|
|
carl(at)flyers.freeserve.
Guest
|
| Posted: Thu Sep 26, 2013 9:22 pm Post subject: Mag drop |
|
|
Hi,
Have you checked that the correct leads are on each spark plug.
This may seem a bit obvious but worth checking. A while back we accidentally swapped the top plugs on cylinders 1 and 3 and ended up with a 400 rpm mag drop.
It may be as simple as that.
Good luck
Carl
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Karl Heindl
Sent: 27 September 2013 00:00
To: europa-list(at)matronics.com
Subject: Mag drop
I have excessive mag drop on one magneto and am not sure where to look for the problem. Would anyone have any guidelines for this ? I have someone's course notes which state that: if you pull the choke while running on the bad mag, and if there is any change in rpm, then it is most likely a carb problem. If there is no change then it is an ignition problem. I get an increase in rpm.
The engine ran fine 12 months ago. Since then I changed and re-arranged all fuel lines. How would I identify the faulty carburetor ? And then what do I look for ?
Any hints greatly appreciated.
Karl
| Quote: | | http://www.matronics.com/Navigator?Europa-List |
01234567
[quote][b]
| | - The Matronics Europa-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?Europa-List |
|
|
|
| Back to top |
|
|
christoph.both(at)acadiau
Guest
|
| Posted: Fri Sep 27, 2013 2:55 am Post subject: Mag drop |
|
|
Plug leads are easily replaced (cut off nylon and twist off. New plug leads are $3.00 each. Rotax specifies a minimum "pull off" resistance for the plug lead to pull it off which if it can not be achieved (it will take quite some pull in my experience) required replacement of plug lead. Its in the Heavy Maintenance Manual.
Christoph Both
#223 Europa Classic ULS
Flying since SEPT 19, 6hrs
From: Bob Harrison <ptag.dev(at)tiscali.co.uk (ptag.dev(at)tiscali.co.uk)>
Reply-To: "europa-list(at)matronics.com (europa-list(at)matronics.com)" <europa-list(at)matronics.com (europa-list(at)matronics.com)>
Date: Thursday, 26 September, 2013 11:15 PM
To: "europa-list(at)matronics.com (europa-list(at)matronics.com)" <europa-list(at)matronics.com (europa-list(at)matronics.com)>
Subject: RE: Mag drop
<![endif]--> <![endif]-->
Hi! Karl, it sound stupidly simple but I recently twice had a plug lead fall off ? I have now fitted plastic cable ties as vertical restrainers.
Regards
Bob Harrison G-PTAG
From: owner-europa-list-server(at)matronics.com (owner-europa-list-server(at)matronics.com) [mailto:owner-europa-list-server(at)matronics.com (owner-europa-list-server(at)matronics.com)] On Behalf Of Karl Heindl
Sent: 27 September 2013 00:00
To: europa-list(at)matronics.com (europa-list(at)matronics.com)
Subject: Mag drop
I have excessive mag drop on one magneto and am not sure where to look for the problem. Would anyone have any guidelines for this ? I have someone's course notes which state that: if you pull the choke while running on the bad mag, and if there is any change in rpm, then it is most likely a carb problem. If there is no change then it is an ignition problem. I get an increase in rpm.
The engine ran fine 12 months ago. Since then I changed and re-arranged all fuel lines. How would I identify the faulty carburetor ? And then what do I look for ?
Any hints greatly appreciated.
Karl
0 1 2 3 4 5 6 7
8
[quote][b]
| | - The Matronics Europa-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?Europa-List |
|
|
|
| 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
