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Driverdan 
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Joined: 21 Feb 2015
Location: Owego,NY
Points: 181
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 Topic: WC timing
Posted: 02 Aug 2026 at 7:58am |
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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
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 93066
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Posted: 02 Aug 2026 at 9:19am |
look real close... maybe wire brush the area... very faint mark...
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Like them all, but love the "B"s.
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Driverdan
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Joined: 21 Feb 2015
Location: Owego,NY
Points: 181
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Posted: 02 Aug 2026 at 12:48pm |
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...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
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WF owner
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Joined: 12 May 2013
Location: Bombay NY
Points: 5303
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Posted: 02 Aug 2026 at 2:36pm |
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A hint. The (set) bolt on the front crankshaft pulley will be straight up when the crankshaft is at TDC.
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Driverdan
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Joined: 21 Feb 2015
Location: Owego,NY
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Posted: 02 Aug 2026 at 6:30pm |
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Thank you WF...that also is a valuable piece of information!.... Dan
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DaveKamp
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Joined: 12 Apr 2010
Location: LeClaire, Ia
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Posted: 03 Aug 2026 at 12:22am |
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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.
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Driverdan
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Joined: 21 Feb 2015
Location: Owego,NY
Points: 181
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Posted: 03 Aug 2026 at 11:42am |
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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..
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DrAllis
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Posted: 03 Aug 2026 at 11:54am |
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Down for #1 and #4. Up for #2 and #3.
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Driverdan
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Posted: 03 Aug 2026 at 12:13pm |
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Aaahhh...that makes sense..Thanks Doc!...Dan
Edited by Driverdan - 03 Aug 2026 at 12:14pm
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