Farm Equipment - WC timing

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WC timing

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=211861
Printed Date: 18 Sep 2026 at 6:58am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: WC timing

Posted By: Driverdan
Subject: WC timing
Date Posted: 02 Aug 2026 at 7:58am

I am working on the 1940 WC ( that my late father bought 1952). I have put (and adjusted) points in the magneto and am getting good spark. I now want to install magneto. I have number one cylinder top dead on compression stroke, but cannot find fire mark in inspection hole in clutch cover!?!?...does one exist, or am I missing something? Thanks in advance...Dan

Replies:

Posted By: steve(ill)
Date Posted: 02 Aug 2026 at 9:19am

look real close... maybe wire brush the area... very faint mark...

https://www.allis01.com/fossto/44WC/ac-wc-mag-timing.html" rel="nofollow - https://www.allis01.com/fossto/44WC/ac-wc-mag-timing.html

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Like them all, but love the "B"s.

Posted By: Driverdan
Date Posted: 02 Aug 2026 at 12:48pm

...Steve, that k you very much! Exactly what I was looking for, now I have a better idea what to look for ( and I may need that wire brush!)..Thanks again...Dan

Posted By: WF owner
Date Posted: 02 Aug 2026 at 2:36pm

A hint. The (set) bolt on the front crankshaft pulley will be straight up when the crankshaft is at TDC.

Posted By: Driverdan
Date Posted: 02 Aug 2026 at 6:30pm

Thank you WF...that also is a valuable piece of information!.... Dan

Posted By: DaveKamp
Date Posted: 03 Aug 2026 at 12:22am

Once you have the mag installed, turn the engine over slowly with the hand crank. You can be comfortably satisfied that you're in the 'right range' when you turn the handle, feel compression peak, then just START to let off, when you hear the CLACK!

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Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest.

Posted By: Driverdan
Date Posted: 03 Aug 2026 at 11:42am

WC now running like a well made watch from a European mountain country! Thank you very much friends! Only question was, to be at top dead center with flywheel marks lined up....crankshaft pulley bolt points straight down??..?? Thanks for help. Dan..

Posted By: DrAllis
Date Posted: 03 Aug 2026 at 11:54am

Down for #1 and #4. Up for #2 and #3.

Posted By: Driverdan
Date Posted: 03 Aug 2026 at 12:13pm

Aaahhh...that makes sense..Thanks Doc!...Dan