Bendix Coils Test Good, But Won't Fire In Motor

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kirkp
Posts: 85
Joined: Tue Mar 17, 2015 4:33 pm

Re: Bendix Coils Test Good, But Won't Fire In Motor

Postby kirkp » Thu Aug 10, 2017 7:21 pm

Interesting thought Jerry. If no boot, maybe application of some liquid tape would help.
Kirk

Jeff Register
Central Arizona Chapter President
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Location: Mesa, Arizona

Re: Bendix Coils Test Good, But Won't Fire In Motor

Postby Jeff Register » Thu Aug 10, 2017 7:35 pm

I agree J.W. Start with basics cleaning everything including the points bolt to remove any oil, Replace the wires, polish the contacts, junk the caps & check for out of round stater & run a bonding wire, mag to block. I use Super Corona Dope & fine glass cloth to help them also. No problems with my KG7, KF7 or my KH7 all bendix.

jw in dixie
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Location: Huntsville, AL
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Re: Bendix Coils Test Good, But Won't Fire In Motor

Postby jw in dixie » Thu Aug 10, 2017 11:14 pm

And, BTW, when I replaced the first original KG7 coil, I fou9nd that the high tension wire was just twisted at the coil lug, NOT soldered. I continued that practice. Figured Carl knew what he was doing when it came to mags.
JW in Dixie

BillW
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Location: Cape Cod MA

Re: Bendix Coils Test Good, But Won't Fire In Motor

Postby BillW » Sat Aug 12, 2017 6:55 am

I have pulled my hair out agonizing over seemingly all details of Bendix mag woes. When you get one that kicks your butt, after all basics have been checked, run the spark plug gap at .015" and you will most likely be amazed at the results.

jw in dixie
Posts: 325
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Location: Huntsville, AL
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Re: Bendix Coils Test Good, But Won't Fire In Motor

Postby jw in dixie » Sat Aug 12, 2017 9:05 am

Yeah, Bill, back in the old days we had to run wide plug gaps to allow for the lead and ash buildup.
Plug cleaning was frequent. :(
JW in Dixie


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