Farm Equipment - B magneto question

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B magneto question

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=182729
Printed Date: 23 Sep 2025 at 4:56pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: B magneto question

Posted By: ihscout
Subject: B magneto question
Date Posted: 22 Aug 2021 at 4:31pm

What would cause one of the dogs to break off of the impulse coupling on my Allis Chalmers b magneto?

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'40 AC B - My Pappy always told me "Use your head for something other than a tack hammer!" I did. It makes a great 16 pound sledge hammer.

Replies:

Posted By: Steve in NJ
Date Posted: 22 Aug 2021 at 8:32pm

Could've been from the engine kicking back at one time or another. Best to replace the coupler outer shell. We have nice clean glass beaded one's in stock if interested. Wouldn't be a bad idea to inspect the cam pawls to make sure one of em' didn't get bent and launched a spring. HTH

Steve@B&B

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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife