Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-13-2003, 09:31 PM
Registered User
 
Join Date: Jun 2001
Posts: 259
How do you test a coil?

Well, how do you?

Thanks.

J. Boggs
Reply With Quote
  #2  
Old 08-13-2003, 09:46 PM
MTI's Avatar
MTI MTI is offline
Registered User
 
Join Date: Nov 2002
Location: Scottsdale, Arizona
Posts: 10,626
Magneto or Suspension Spring?
Reply With Quote
  #3  
Old 08-13-2003, 10:09 PM
Registered User
 
Join Date: Jun 2001
Posts: 259
560sl, not sure to tell you the truth.

Not sure.
Reply With Quote
  #4  
Old 08-13-2003, 10:20 PM
Registered User
 
Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
Primary and secondary resistance are the only passive tests, other than apperance. If it is an external frame coil like late model GMs, the presence of "wiskers" of iron growing out of the frame indicates serious secondary voltage leakage, time to toss. Any signs of carbon tracking around the secondary wire tower or "burn" marks to ground indicate broken down insulation and hence a current leak.

Other than that, you will need an ignition analyzer, good wires, and good plugs to check performance, and it's getting hard to find ignition analyzers anymore, no one uses them.

The other "quick" test is to replace the coil. Not cheap, just quick.

Peter
__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 06:54 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page