Farm Equipment - Trouble Timing Allis Chalmers WD

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Trouble Timing Allis Chalmers 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=184713
Printed Date: 07 Apr 2026 at 7:04am
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Topic: Trouble Timing Allis Chalmers WD

Posted By: PhilipRyan
Subject: Trouble Timing Allis Chalmers WD
Date Posted: 21 Nov 2021 at 4:27pm

Hello, I have a 1949 WD that I took the magneto off while changing the push rod inspection cover gasket. While reinstalling the magneto I turned it over a couple times not knowing this would throw off my timing. Since then I have found the top dead center mark on my fly wheel and matched it with the arrow. Then taken my magneto cap off to see it set to 1. Once Ive done this I lined up the firing order (1243, 3 being next to radiator) and matching the mags numbers to the engine blocks. I tried this muiliple times and still no success. What am I doing wrong? Tractor ran amazing before I did this. Any advice extremely appreciated.

Replies:

Posted By: Tom IA
Date Posted: 21 Nov 2021 at 5:35pm

Number 1 is by radiator 2 3 4 to back then set your firing order

Posted By: Jim.ME
Date Posted: 21 Nov 2021 at 5:45pm

You need to start with # 1 piston (# 1 is the closest cylinder to the radiator as Tom IA posted) at TDC on the compression stroke, not just line up the timing mark. The timing mark on the flywheel lines up on TDC every revolution, but compression TDC is only every other revolution of the flywheel. Pull # 1 plug. Put your finger over the plug hole and turn the engine over until you feel compression building and stop. Continue to turn the engine over manually, in the proper direction, until the timing mark lines up. That should bring the engine to TDC compression, ready for mag or distributor installation.

Posted By: WF owner
Date Posted: 21 Nov 2021 at 7:15pm

I don't know if you had the cap off the mag, but there are gears inside that also need to be in correct time to work. Here is a link that explains it very well.

http://dueyschutter.freeservers.com/photo6.html" rel="nofollow - http://dueyschutter.freeservers.com/photo6.html

Posted By: PhilipRyan
Date Posted: 21 Nov 2021 at 10:59pm

Thank you for all the help, I can see now I was way off on how I thought you do it. Will try these in the morning and keep you guys posted. Thank you very much.