Grandfathers CA

Yes, I did replace the coil and condenser a month ago. It still misses after warming up.

Today all I did was change the points. It is clean and not grounded. Only the condenser and coil are attached to the point.

Edited by CA13414 - 19 Jul 2025 at 2:32pm

Earlier I watched a "youtube" rebuild and the shock they had was an arc of about 1/2". Not what I am getting.

Maybe a rebuild however, not to keen on the idea of $325.

Dan

i have several B tractors all with MAGS.. I have replaced coils and condeners and points as needed over the years.. I had ONE that was REAL STUBBORN on starting after a few years.. I took apart the the IMPULSE SPRINGs were weak and not retarding the spark to TDC when you crank.. It was OK when i turned by hand.. I finally got it to work "OK"..... couple months later there was a guy on this site going out of business and was selling his REBUILT MAGS... had  3 or 4... Said complete rebuild with RECHARGED MAGNET / new coil / NIS condenser / etc. ... so i bought it... WOW... what a difference.. Engine rolls over ONCE and its running.. HOT SPARK.. FANTASTIC... Never thought i would get that much DIFFERENCE !!

Edited by steve(ill) - 19 Jul 2025 at 8:00pm

Steve, so maybe a rebuild or different mag with a "recharged mag" will help?

Interesting. That may be the issue.

Dan

Edited by CA13414 - 19 Jul 2025 at 8:43pm

Thinking about this and the role of the magnet..... to induce a current. If the magnet is weak, the induced current is weak, or for me a pansy ass spark.

Who here does a great job of "re-charging" a magneto?

As noted, I did find someone on the "internet" who does this but would feel more comfortable with someone here in the group who knows a good :re-charger!!!" :')


Edited by CA13414 - 19 Jul 2025 at 8:48pm

here are a few good photos... half way down the page is the "magnetizer" to recharge oil magnets... guy has a "HOME PAGE" button at the bottom..

steve(ill) wrote: here are a few good photos... half way down the page is the "magnetizer" to recharge oil magnets... guy has a "HOME PAGE" button at the bottom.. https://www.allis01.com/fossto/39RC/ac-RC-magneto.html

Thanks Steve, quite an amazing process. Is neat to see how we use to do this with the magnetizer.

I also went to his home page and saw the AC collection which was awesome! There was also a number of fun links.

Dan

Edited by CA13414 - 26 Jul 2025 at 8:02am

Appreciate everyone's insight into the Magneto and lack of spark. Has been fun to learn from everyone. :')

You will not regret switching to a pointless distributor

Thanks Steve!

I am, as we message, rewiring for power to the distributor vs. it being a ground to the Mag.

Is a simple change to a 12V terminal on the toggle switch.

Will upload a few photos later.

Edited by CA13414 - 26 Jul 2025 at 8:07pm

Les Kerf wrote: You will not regret switching to a pointless distributor

Works awesome, with the push-pull light switch.




Edited by CA13414 - 26 Jul 2025 at 7:47pm

Drive unit and distributor arrived last evening. Looks spectacular and excited to install this weekend. Thanks Steve!

I marked the exact spot the rotor was pointing before taking off the Magneto. With firing order of 1,2,4,3, the magneto rotor was pointing directly to the cylinder # 3 cap terminal. Hope it is an easy install without needing to find #1 TDC.

Dan

After adjusting the timing she ran better than ever. Excited to she what happens when we put little orange to work tomorrow.

This is the best the engine has ran and without hesitancy as I stepped up the RPM and then back down.

Here is a link to listen to the engine at an idle and as I changed the RPM with the throttle.

A big thanks to Steve at B&B for the drive and distributor!!

Dan
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Edited by CA13414 - 02 Aug 2025 at 9:29pm