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Onan Electronic Ignition and TriFuel... How To


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  #1  
Old 05-13-2010, 01:11:59 PM
bobbyz72 bobbyz72 is offline
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Default Onan Electronic Ignition and TriFuel... How To

Bt told me a while back if i would do a step by step how to, he would post it as a stickly. Well, I have a 5.0 CCK 1975 onan generator, the points have been acting up. So i will be taking pictures of step by step, and giving the best info i can of how to up grade it to electronic ignition, and how and were to drill and tap the carburator for natrual gas or propane/ tri fuel. Im going to do all of this with only BASIC HAND TOOLS, and using the easly ways possable to do this upgrade. No fancing machining, no fancy tools, nonthing expesive, as i normaly like to do. Pictures and step by step later today....
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Old 05-13-2010, 01:35:41 PM
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BTPost BTPost is offline
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Talking Re: Electronic Ignition and TriFuel.. How Too

Way cool, Looking forward to seeing your Product when you get it done. It will make a fine addition to the Stickys at the top of the Forum.
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Bruce in alaska
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Old 05-13-2010, 03:02:57 PM
DaGr51 DaGr51 is offline
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Default Re: Electronic Ignition and TriFuel.. How Too

Yes, indeed! Can't wait to see this, Bobby.
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Old 05-13-2010, 08:13:42 PM
K D Redd K D Redd is offline
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Default Re: Electronic Ignition and TriFuel.. How Too

Bobbyz72

Looks like you are going to beat me to this. I am cover-up with lawn mower and I have not done this to my 4.0 CCK. I do have it set-up gaseous fuel.

Kent
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Old 05-13-2010, 10:49:03 PM
bobbyz72 bobbyz72 is offline
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Default Re: Electronic Ignition and TriFuel.. How To

Ok, i guess to get started, we are doing this the easyest way possable, you will need 166-0767 Electronic Ignition Rotor, about $5 on ebay, 166-0785 Ignition Module, Around $20 on ebay, 515-0284 Flywheel Key, $1 used on ebay. onan timing gear front cover with the 2 screw holes for the module, about $10 on ebay. 103-0810 Timing Cover Gasket about $10, and 509-0040 Oil Seal Timing Cover End, again, about $10. Thats all the onan parts you need for this entire project.

Geting started remove all sheet metal off the front of the generator, including the fly wheel.

Step 2, grind off the square heads off the new and old governor shafts. If your new timing cover has the same governor shaft you can skip this part, see picture of me detail. After grinding off the square head work the governor shaft off, should come right off with a little force. You should have a nice square end on your governor shaft after you remove the governor arm.

Step 3, If your doing this with a NH 6.5, BFA, Skip this step. If your doing this with a cck, you will have to grind about 1/4 inch off the inside shaft part of the flywheel, it grinds down REALLY easy! If you dont do this, when you install the rotor, and flywheel and tighten down on the flywheel, if till push in oil seal inward.

More to come tomorrow, had to work 4 hours long then i had planed today.
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Old 05-14-2010, 08:15:11 PM
bobbyz72 bobbyz72 is offline
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Default Re: Electronic Ignition and TriFuel.. How To

Ok, where were we? Go ahead and tack weld your old governor arm on to the the new governor shaft, takes about 1 second..

Step 5, install the new timing gear cover on to the generator.

Step 6, Skip, this step if doing this on a 6.5 NH or BFA.... take the new key, and cut 1/4 inch off of it, i used vice grips to be sure i didnt cut too much off. I also used a band saw, you can use what ever you want to cut it. Make sure when installed, it does not ride on the oil seal.

Step 7, install new key, slide rotor trigger on shaft, and install ignition pick up.

Step 8, tie low oil pressure into black wire.

Step 9, Use antiseize on shaft and resinstall flywheel.

Step 10, run wires, and tire red wire to Ignition coil (+), and black wire to Ignition coil (-).

Removing points box optional.
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Old 05-14-2010, 08:17:11 PM
bobbyz72 bobbyz72 is offline
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Default Re: Electronic Ignition and TriFuel.. How To

Had to open new window to add more pictures....
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Old 05-14-2010, 08:21:53 PM
bobbyz72 bobbyz72 is offline
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Default Re: Electronic Ignition and TriFuel.. How To

Now lets see what we can do with the carb. On the rear of the carb, there is a plug, looks like a perfect drilling location. After drilling, i ran a 1/8 NPT pipe tap into drilled hole, the carb is soft aluminum so it taps really easy.


Will reinstall carb tomorrow, and show how to set up fuel supply tomorrow.
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Old 05-14-2010, 09:15:23 PM
Ted_Cool Ted_Cool is offline
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Default Re: Electronic Ignition and TriFuel.. How To

Lookin good!

The two different governor arms look compatible. Was there something interfering that made you need to change them?
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Old 05-14-2010, 09:26:50 PM
bobbyz72 bobbyz72 is offline
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Default Re: Electronic Ignition and TriFuel.. How To

Its off set a little bit, and would require tighting the governor spring a lot, and still may not be tight enough, but your right, it MAY work fine.

Tomorrow ill also measure the diffrences between the new and old gear cover, so if one would want to, you could just drill holes in your exsisting cover, and not have to buy a new one. You would just have to seal the holes up so oil wont leak out.
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