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  #1  
Old 01-29-2007, 05:27 PM
Kyle Fitzpatrick
 
Join Date: Nov 2005
Location: Hagerstown, MD
Posts: 64
Ignition Coil Type????Blue, red, etc

Hello all,

Well, I ebayed the 220SEb to support the 6.3!

I am now trying to get the car running after many years of being dormant.

The car currently has a Crane Cams XR-700 optical ignition conversion, it is running an unresisted Bosch Red coil. I'm thinking this setup is wrong. The spark is there but is not the bright hot spark that I need.

Should this setup have a bosch blue coil to run unresisted? Would adding series resistors help the red coil produce a better spark? If so, what values of resistors should be used?

Thanks for any advice you have.

Happy Motoring, K.

__________________
Kyle Fitzpatrick
Materials Engineer

1969 300SEL 6.3
1992 300E
1994 E320 Touring
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  #2  
Old 01-29-2007, 05:34 PM
Registered User
 
Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
Masure the coil resistance across pos/neg terminals and post the finding..
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  #3  
Old 01-29-2007, 07:13 PM
Registered User
 
Join Date: Jul 2003
Location: Ocean Isle Beach, NC
Posts: 2,512
See http://www.mbzponton.org/valueadded/maintenance/ignition/coil.htm

It's a few years old, but may still apply. The spark on my ignition system is not the bright hot spark I expect, but that may be what it was 40 years ago.

Len
'59 220S Cabriolet

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