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-Benz Forum > Mercedes-Benz Tech Information and Support > Vintage Mercedes Forum

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 09-15-2015, 04:17 PM
Registered User
 
Join Date: Jul 2015
Posts: 23
Electronic Ignition Kit for w115

Hello. I have a 1974 w115 230.4 with M115 engine. I would like to buy a electronic ignition kit, but I couldn't reach any information regarding the best brand. Looking forward to hearing your suggestions.

Thanks..
Reply With Quote
  #2  
Old 09-15-2015, 04:38 PM
Registered User
 
Join Date: Sep 2013
Location: Alhambra California
Posts: 2,213
Pertronix is your best bet. They have a web site that shows the specific electronic ignition for your car.

Last edited by BWhitmore; 09-15-2015 at 06:15 PM.
Reply With Quote
  #3  
Old 09-15-2015, 05:10 PM
Registered User
 
Join Date: Jan 2006
Location: Tucson, AZ
Posts: 4,550
Crane (XR700?) is also an option as is HotSpark. I've used the Crane and currently am using the HotSpark in my M115. I'm using the Pertronix system in my M110.

All of the three perform well. The advantage of the Pertronix/HotSpark systems are they are completely self contained and require no external additional power supply.

The Crane has a separate control unit which adds to the complexity.

The Pertronix/HotSpark systems are Hall Effect sensors.

The Crane is an optical shutter wheel.

Disadvantage of the Hall Effect type is if your ignition is left on without the engine running the pick-up trigger sensor can be damaged.
__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now

Last edited by Mike D; 09-15-2015 at 07:13 PM. Reason: clarity
Reply With Quote
  #4  
Old 09-15-2015, 05:57 PM
Registered User
 
Join Date: Feb 2011
Location: Modesto CA
Posts: 2,816
racey:

Irrespective of which aftermarket system, if any, that you select, the perfect condition of the distributor bushings/bearings, and the smooth operation of the centrifugal and vacuum advance mechanisms comes first.
If there seem to be some ignition faults, they may disappear when the distributor is made right.
Reply With Quote
  #5  
Old 09-15-2015, 07:16 PM
Graham's Avatar
Registered User
 
Join Date: Nov 2004
Location: Ontario, Canada
Posts: 3,460
Quote:
Originally Posted by Frank Reiner View Post
racey:

Irrespective of which aftermarket system, if any, that you select, the perfect condition of the distributor bushings/bearings, and the smooth operation of the centrifugal and vacuum advance mechanisms comes first.
If there seem to be some ignition faults, they may disappear when the distributor is made right.
Proper centrifugal advance and vacuum retard are no doubt important and electronic ignition won't help with those. However, Pertronix can handle some run-out of distributor bearings. One good reason to install it on older cars.
__________________
Graham
85 300D,72 350SL, 98 E320, Outback 2.5
Reply With Quote
  #6  
Old 09-15-2015, 09:38 PM
Registered User
 
Join Date: Sep 2011
Posts: 572
I read that HotSpark is the way to go on these 6-cylinder distributors, but the last guy I know to try one was very disappointed in the HotSpark tech support.

For this reason, I personally think it is best that you start with a good working stock ignition system. It is nice to be able to eliminate the variables when troubleshooting. If nothing works, everything is a variable.

EDIT: oops! I forgot that this is a four cyl. I know nothing!!
__________________
Past mb: '73 450sl, '81 280slc stick, '71 250, '72 250c, '70 250c, '79 280sl, '73 450sl, parted: '75 240d stick, '69 280s, '73 450slc, '72 450sl,

Last edited by fonzi; 09-16-2015 at 02:16 PM.
Reply With Quote
  #7  
Old 09-16-2015, 04:47 PM
Registered User
 
Join Date: Jul 2015
Posts: 23
Thanks for all the responses guys. So, Pertronix sounds better. I wonder if there is any way to get rid of the possibility of trigger sensor damage?
Reply With Quote
  #8  
Old 09-16-2015, 05:04 PM
Registered User
 
Join Date: Jul 2015
Posts: 23
And one more question. I can not find any link to buy the suitable complete kit of Pertronix for my car (230.4). Is there any one to help me with any link?
Reply With Quote
  #9  
Old 09-16-2015, 05:18 PM
Registered User
 
Join Date: Sep 2013
Location: Alhambra California
Posts: 2,213
Using the Pertronix.com web site type in your Bosch distributor number (should be stamped in to the side of the distributor).
Reply With Quote
  #10  
Old 09-16-2015, 05:48 PM
Registered User
 
Join Date: Jan 2006
Location: Tucson, AZ
Posts: 4,550
The Pertronix "IgniterII" addresses the issue of leaving the ignition in the run position. I believe it costs twice as much though.

The good news is your M115 probably already has "suppressor" wires as opposed to the solid core wires used by the M110's. I just went through the PITA task of making up a set of suppressor wires for my Pertronix set-up.
__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now
Reply With Quote
  #11  
Old 09-16-2015, 07:47 PM
Graham's Avatar
Registered User
 
Join Date: Nov 2004
Location: Ontario, Canada
Posts: 3,460
Quote:
Originally Posted by racing3000 View Post
Thanks for all the responses guys. So, Pertronix sounds better. I wonder if there is any way to get rid of the possibility of trigger sensor damage?
It's a bit of a myth. Only way you can damage the pick up coil, is if you leave the ignition switched fully on while messing with car and distributor cam happens to be stopped in one of a few wrong places. If you disconnect the power line to the Pertronix when messing with car, then there is no problem. A quick disconnect of some type might help. On most cars, power only gets to Pertronix when ignition switch is switched to fully on position (so Ok to run radio etc with switch at first position)

I have had my Pertronix I for quite a few years with no problems. Apparently the more expensive Pertronix II has burn out protection, but does not like the Euro solid core wires found in our cars. Most MBs of that vintage have them.

I know nothing of the 123Ignition units in the link below. They don't make them for my V-8. But they do look interesting and you get a whole new distributor (for a price!)

Mercedes Ignition from123IgnitionUSA = Perfect Timing Every Time
__________________
Graham
85 300D,72 350SL, 98 E320, Outback 2.5

Last edited by Graham; 09-16-2015 at 08:10 PM.
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 12:40 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page