Farm Equipment - Dwell and timing on a WD

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Dwell and timing on a WD

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=34071
Printed Date: 20 Oct 2025 at 4:52am
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Topic: Dwell and timing on a WD

Posted By: nowaktj
Subject: Dwell and timing on a WD
Date Posted: 17 Jul 2011 at 7:48pm

Hi guys,

What is the dwell on a WD? Also, how is this engine timed?

Thanks in advance,

Terry

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D19D, D17D, WD, WC, Snobee, #83 Plow, SC Blade, 14' disk, 400 series planter, B , Terra Tiger, M Dozer w/Baker Blade, TL-12, 42S Grader, G

Replies:

Posted By: Brian Jasper co. Ia
Date Posted: 17 Jul 2011 at 8:52pm

I'm not sure what the dwell is, but .020 works for point gap. There is a window in the side of the frame inline with the the rim of the flywheel. Center the FIRE line in the window with the engine at full throttle. I just set them by ear. I had a long time A-C mechanic tell me the timing is right when you close the throttle from full rpm quickly to idle and you get one loud backfire out the exhaust.

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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford