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Discussion Forum

Timing marks

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02-17-2002 14:15:39

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I've got an Allis-Chalmers CA and I'm just about to mate the distributor gear to the intermediate gear but I can't seem to locate the timing marks on the gears. I can't seem to see anything! Has anyone had this problem before? Where should I look to find them? Would they be on the side of the gears or on the ends? How can I solve it? What do I do now... sell it? Just had the engine rebuilt.

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Rod (NH)

02-17-2002 21:37:09

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 Re: Timing marks in reply to Brewer, 02-17-2002 14:15:39  
The I&T service manual shows a layout of the three gears: 1)crankshaft, 2)camshaft & 3) combo governor/mag/dist drive. The crank gear should have a straight line mark on one tooth on the flat face of the gear. The camshaft gear should have a corresponding straight line mark in a valley between two teeth on the keyway part of the circumference in line with the keyway. This mark is also on the flat face of the gear. These two gears should be mated so that the two straight line marks are aligned with each other.

On the circumference opposite the straight line mark on the cam gear (and opposite the keyway) there should be a dot or an "o" mark on a tooth. This mark is also on the flat face of the gear. It should be aligned with a corresponding dot or "o" mark located between two teeth on the flat face of the combo gear.

The marks are small and may be difficult to see but should be there.

Hope this helps.


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02-18-2002 07:02:35

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 Re: Re: Timing marks in reply to Rod (NH), 02-17-2002 21:37:09  
Thanks Rod! I'll try to work on it today or tomorrow and let you know how things work out. Thanks again!

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