Community
Search
Notices
Gas Engines Questions or comments about gas engines can be posted here

Quadra 42 ignition question

Thread Tools
 
Search this Thread
 
Old 02-24-2014, 01:27 PM
  #1  
skysfallin
Senior Member
Thread Starter
My Feedback: (10)
 
Join Date: Feb 2009
Location: Rising Sun, MD
Posts: 449
Likes: 0
Received 0 Likes on 0 Posts
Default Quadra 42 ignition question

I have a friend who just bought an airplane with a Quadra42 on it. We were trying to check the spark on the magneto and found no spark to the plug. Tried a new plug with no result. I checked the magnets and they seemed very strong and the gap from the coil to the fly wheel was about .020. I did not see what triggers the ignition to break and send the spark from the coil to the plug. I found no points or hall sensor to break the dwell time on the coil. Can anyone shed any info on how this system works. I understand magneto ignition but they all have points to break the coil dwell saturation. Thanks Gary
Old 02-24-2014, 06:08 PM
  #2  
w8ye
My Feedback: (16)
 
w8ye's Avatar
 
Join Date: Dec 2001
Location: Shelby, OH
Posts: 37,576
Received 9 Likes on 9 Posts
Default

It has a internal solid state trigger

The correct coil gap is .012" or about the thickness of an appointment card.

You need to have the plug out so you can spin the engine fast
Old 02-24-2014, 06:40 PM
  #3  
Captain John
 
Join Date: Nov 2010
Location: Hesperia Michigan USA zip 49427
Posts: 73
Received 1 Like on 1 Post
Default

No reply...a question. w8ye, I had to redo my password....some how my mirror name came back. How do I fix that again. Thanks Capt,n from HESPERIA.
Old 02-25-2014, 02:02 AM
  #4  
w8ye
My Feedback: (16)
 
w8ye's Avatar
 
Join Date: Dec 2001
Location: Shelby, OH
Posts: 37,576
Received 9 Likes on 9 Posts
Default

Somehow you have logged into that other name again?

Find your old account by spelling the name as you had originally. Captain John is not your account!

You are captinjohn

http://www.rcuniverse.com/forum/members/captinjohn.html

Last edited by w8ye; 02-25-2014 at 02:06 AM.
Old 02-25-2014, 04:43 AM
  #5  
coralcape
My Feedback: (4)
 
Join Date: Apr 2004
Location: cape coral, FL
Posts: 312
Likes: 0
Received 0 Likes on 0 Posts
Default

Most mag systems today, have a built in electronuc switch, that takes the place of the old points. Make sure the kill wire is not grounded and decrease the magnet to coil gap as small as possible. Good luck, red
Old 02-25-2014, 06:03 AM
  #6  
ahicks
My Feedback: (2)
 
Join Date: Aug 2008
Location: Waterford, Mi/Citrus Springs, Fl
Posts: 3,821
Received 19 Likes on 17 Posts
Default

Grounded kill wire is what I was thinking as well. There's a spade terminal on the one I had, mounted right near the coil. In operation, you would ground that to kill the engine. If there's something wired in to that terminal on your buddy's engine, have him check for spark after unplugging it.

We're pretty sure this is a 42? There's a nearly identical 35 that uses a set of points under the flywheel. Wire leading to them from the outside is a dead give away....
Old 02-25-2014, 11:23 PM
  #7  
kerwin50
Senior Member
 
Join Date: Oct 2006
Location: winston, MO
Posts: 1,378
Likes: 0
Received 0 Likes on 0 Posts
Default

How were you checking the spark.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.