ignition upgrade - Mercedes-Benz Forum

 
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post #1 of 8 (permalink) Old 04-14-2013, 11:20 AM Thread Starter
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ignition upgrade

I'm looking to tune up the old six cylinder, does anyone know of a upgrade from stock? I'm open to any ideas or suggestion. Thanks

1970 Mercedes Benz 280SEL
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1967 Mercedes 250SE
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post #2 of 8 (permalink) Old 04-14-2013, 12:31 PM
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Do you mean something like Pertronix? That seems to be the most common and simplest and what I have. Do a search on this forum and you will find more than you care to read about the Pertronix upgrade. I recommend it.

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post #3 of 8 (permalink) Old 04-15-2013, 06:21 AM Thread Starter
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Thanks Direct
I have ordered the Pertronix Igniter along with a new coil, rotor, distributor cap, plug wires, and plugs. I assume there will be instructions with the kit, and I also assume I will have to have to retime the distributor to fine tune. Am I missing anything here?

1970 Mercedes Benz 280SEL
VIN 10801912050616

1967 Mercedes 250SE
Parts Car
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post #4 of 8 (permalink) Old 04-15-2013, 06:36 AM
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The pertronix upgrade is pretty straight forward. Depending on your distributor, you may have to grind off a corner of the bracket attached to the vac advance. This is needed to get the magnet to seat completely. Do a search here, there are previous posts showing pics of what need to be done.
Timing will have to be reset.
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post #5 of 8 (permalink) Old 04-17-2013, 08:08 AM
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I would also highly recommend the pertronix upgrade. I did it on my 230sl a decade ago and have not had any problems. Changed the plugs a time or two but have not had to do anything with the distributor since then. Starts and runs great, lots better than with points and there is not the wear and re-gap factor.
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post #6 of 8 (permalink) Old 04-17-2013, 06:04 PM
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Pertronix ignitor :works very well, still reliable l after a decade of use in my 108 with its original coil but perhaps the new coil will be a better choice as it has a higher secondary voltage
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Last edited by adler; 04-17-2013 at 09:08 PM.
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post #7 of 8 (permalink) Old 04-21-2013, 09:08 PM
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I just upgraded to the HotSpark with a new coil, around $100 for both. I highly recommend it! The best part is, (at least for my W114) is that it gets rid of the ignition control modual which was beginning to fail on me. The car runs amazing now, plenty of power. Took me about 3 hours to install, put new plugs with a bigger gap and retimed.
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post #8 of 8 (permalink) Old 04-21-2013, 10:00 PM
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A Good addition.
Now try it with timing advanced a bit to compensate for distributer and chain slack .The idling and take off will improve dramatically.
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