Farm Equipment - Working on the B

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Working on the B

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=46883
Printed Date: 24 Aug 2025 at 7:57pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Working on the B

Posted By: Steve Wilkens
Subject: Working on the B
Date Posted: 08 Mar 2012 at 9:19am

Finally got the B into the shop. Had to free up the frozen brakes and seized engine. Have the head off and the rear axle now turns. The engine is now also free and turns easily with the crank but as I turn it the mag makes a clicking sound as the points close, is this normal? Also shouldn't I get spark simply by turning the engine over?

Replies:

Posted By: Glockhead SWMI
Date Posted: 08 Mar 2012 at 10:13am

that's Probibly the impulse coupler snaping. it is normal. yes, it should spark when it is cranked over.

Posted By: GlenninPA
Date Posted: 08 Mar 2012 at 11:33am

Clicking is good.

There is lots of things that will keep a spark from happening inside that mag, even though it turns. If you don't have spark, and don't want to get an education on magnetos, there are quite a few vendors who can help you. Steve at B&B is near me, and a good friend. I put him at the top of my list, but there are others who can help.

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Good judgment comes from experience. Experience comes from bad judgment.
From listening comes wisdom and from speaking comes repentance.
Wise men learn more from fools than fools from the wise.