Mag

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Model T Ford Forum: Forum 2016: Mag
Top of pagePrevious messageNext messageBottom of page Link to this message  By Rfbuff on Saturday, March 26, 2016 - 11:11 am:

1914 runs good on battery, but rough on mag


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Tomaso - Longbranch,WA on Saturday, March 26, 2016 - 11:48 am:

Could be coil adjustment, weak magneto output, dirty magneto post or several other ailments.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Hap Tucker in Sumter SC on Saturday, March 26, 2016 - 02:32 pm:

Rfbuff,

Note coils that are not properly adjusted will sometimes run better on battery than on Mag. Have your coils been rebuilt by a knowledgeable individual or tested on a hand cranked coil tester or Strobo Spark? See: http://www.funprojects.com/products/ct-1.aspx

Also see: http://www.mtfca.com/discus/messages/257047/298518.html?1341693171 and the link in that thread that goes to: http://www.mtfca.com/discus/messages/257047/298518.html?1341693171

And yes, all of Steve's items could also be a possibility including his "coil adjustment" which is what I discussed above. But if you are not aware that the coil can run well on battery and the same coil can run poorly on Mag you may miss that point.

Respectfully submitted,

Hap l9l5 cut off


Top of pagePrevious messageNext messageBottom of page Link to this message  By Bill Robinson, Salty Bottom, AL on Saturday, March 26, 2016 - 04:03 pm:

Before you try anything- test the magneto output using a #1156 light bulb. If you follow the instructions for the test and the bulb blows- then you have a strong!!!!! mag.
If the bulb burns extra bright, then the mag is strong and should power the car fine.

If there is a lot of flickering, then you have a mag problem, or possibly there is debris at the pickup unit causing poor contact.

If the mag system passes, then you need to look into rebuilt coils.

http://www.mtfca.com/discus/messages/331880/MAGNETO_TEST_58163152-332508.pdf


Top of pagePrevious messageNext messageBottom of page Link to this message  By Hal Schedler, Sacramento on Saturday, March 26, 2016 - 04:21 pm:

KISS...... Keep it simple ........ Check the mag plug first.

The last "S", as it was told to me, is for stupid. No-one on this forum is stupid so I guess we should insert "smarty" or "silly" or.... Cheers!


Top of pagePrevious messageNext messageBottom of page Link to this message  By Greg Adkisson on Saturday, March 26, 2016 - 05:02 pm:

The ECCT will give you an evaluation of the magneto output and RPM, besides tuning the coils


Top of pagePrevious messageNext messageBottom of page Link to this message  By Royce in Dallas TX on Saturday, March 26, 2016 - 06:43 pm:

I would go for the light bulb - it costs about $2. Very cheap and effective - here's a link to a better description of the Regan - Patterson Memorial Mag Test:

http://www.mtfca.com/discus/messages/80257/96176.html


Top of pagePrevious messageNext messageBottom of page Link to this message  By John Noonan - Norton, MA. on Sunday, March 27, 2016 - 12:13 am:

I made this vid right after i got my engine back together with a new field coil and recharged magnets. I don't own an analog meter, just a digital one, so i just wanted to get a general idea of the output of the Mag. It runs pretty strong on Mag yet i was unable to blow out the bulb, although it gets pretty bright. Hopefully will get better data on the output when i get an analog meter.

https://www.youtube.com/watch?v=_IN9l9EzMlo&feature=youtu.be


Top of pagePrevious messageNext messageBottom of page Link to this message  By Bill Robinson, Salty Bottom, AL on Sunday, March 27, 2016 - 03:10 am:

A successful mag test using a #1156 light bulb.

https://youtu.be/cJZoUWLbex4


Top of pagePrevious messageNext messageBottom of page Link to this message  By Greg Adkisson on Sunday, March 27, 2016 - 10:12 am:

http://www.mtfca.com/discus/messages/257047/291495.html?1338086883

more food for thought


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