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Need Help On Power Max Onan 20Hp

ignition electronic points

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#1 zbend OFFLINE  

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Posted April 27, 2013 - 05:15 PM

I am thinking of putting a electronic ignition of the Onan, 1980 model.  If I put the magnet for the trigger on the flywheel will it work?  The thing would fire every cycle.  Is there a post where this has been done?

Thanks  Mike



#2 olcowhand ONLINE  

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Posted April 27, 2013 - 06:04 PM

The later model Onan engines have a trigger ring under the flywheel & have a waste spark, so your plan will work if set up properly.  I know of no post where anyone has done it as of yet.  


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#3 jms180 ONLINE  

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Posted April 27, 2013 - 08:24 PM

Please someone correct me if i am wrong. The coil will need to be changed to a P series coil.


Edited by jms180, April 27, 2013 - 08:30 PM.

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#4 olcowhand ONLINE  

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Posted April 27, 2013 - 08:47 PM

Please someone correct me if i am wrong. The coil will need to be changed to a P series coil.

 

I think he's talking about putting a home brew system together, much like is done with Tecumseh HH engines when the expensive NLA electronic ignitions go down.  The coil needed would depend on the type system installed.


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#5 jms180 ONLINE  

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Posted April 27, 2013 - 08:51 PM

Thanks Daniel for helping me out I missed that part.


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#6 Paulcurtis3 OFFLINE  

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Posted April 27, 2013 - 09:28 PM

Please post the results if you try this. I'm sure others would like to switch if this works.
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#7 zbend OFFLINE  

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Posted April 28, 2013 - 08:24 AM

I am looking at the Pertronix unit for cars.  They are about $80. and consist of the magnet ring ,electronic module and mounting hardware for whatever car .  The module is small and fits inside the cars distributer.  I am thinking of taking one magnet out of the ring and mounting it on the flywheel,mounting the module where the magnet will pass close and trigger the module.  I hope to use the Onan's coil.  The module just replaces the points .  If I buy one I will play with it and see if it will fire the coil. 

Thanks for all the replys and info.

Mike


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#8 olcowhand ONLINE  

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Posted April 28, 2013 - 11:11 AM

I wouldn't remove a magnet from the flywheel, that is if you are speaking of the ones that power the stator, as you need all of them there for proper charge capacity.  A tiny rare earth magnet would do fine & not affect the balance of the flywheel.

 

This ebay seller lists several sizes & shapes:  http://www.ebay.com/...=item43baca8d4d


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#9 zbend OFFLINE  

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Posted April 28, 2013 - 09:14 PM

I wouldn't remove a magnet from the flywheel, that is if you are speaking of the ones that power the stator, as you need all of them there for proper charge capacity.  A tiny rare earth magnet would do fine & not affect the balance of the flywheel.

 

This ebay seller lists several sizes & shapes:  http://www.ebay.com/...=item43baca8d4d

I was going to remove a magnet from the ring of magnets that comes with the ignition module.  There are 8 in the ring for an 8cyl car.

Thanks for the link.

Mike



#10 olcowhand ONLINE  

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Posted April 28, 2013 - 09:15 PM

I was going to remove a magnet from the ring of magnets that comes with the ignition module.  There are 8 in the ring for an 8cyl car.

Thanks for the link.

Mike

 

Oh I see what you meant now, sorry for the confusion.



#11 zbend OFFLINE  

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Posted April 28, 2013 - 09:28 PM

The later model Onan engines have a trigger ring under the flywheel & have a waste spark, so your plan will work if set up properly.  I know of no post where anyone has done it as of yet.  

So a spark on the exhaust stroke will not be a problem?

Mike



#12 olcowhand ONLINE  

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Posted April 29, 2013 - 08:41 AM

So a spark on the exhaust stroke will not be a problem?

Mike

 

No, not at all.  :thumbs:







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