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Old 10-22-2020, 09:03 AM
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Default Witte engine info

I am working on a US Oilwell Witte E-20RC Engine like this one I need some information such as rotation CCW or CW, Carb make and model, and how many teeth on the starter motor pinion.

Lots of them for sale on the net, but not so much information. This was the last of the Witte design after Oilwell bought them, and before Arrow bought Oilwell.
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Old 10-22-2020, 09:07 AM
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Default Witte engine info

Quick screen shot.



Sent from my iPhone using ShopFloorTalkClick image for larger version

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Last edited by toprecycler; 10-22-2020 at 09:11 AM. Reason: Add pic
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Old 10-22-2020, 10:05 AM
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Someone suggested slowing down the video, and it sure looks like CCW, if so....the Magneto is the wrong one for the engine. The impulse coupling clicks and spark occurs when you rotate clockwise.
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Old 10-22-2020, 10:46 AM
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Remember that a video is just a series of stills. I wouldn’t trust slowing it down.
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Old 10-22-2020, 06:10 PM
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Manuals available here.
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Old 10-22-2020, 07:10 PM
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Generally if you stand at the crankshaft end of the engine, the top of the flywheel comes toward you. Or if the cylinder is on your left and the crankshaft is on your right, turn the crankshaft clockwise.
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Old 10-22-2020, 08:44 PM
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Quote:
Originally Posted by milomilo View Post
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Quote:
Originally Posted by Norm W View Post
Generally if you stand at the crankshaft end of the engine, the top of the flywheel comes toward you. Or if the cylinder is on your left and the crankshaft is on your right, turn the crankshaft clockwise.
You are right. I figured it out by other means today, so my starter just needs the right pinion to do the trick
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Old 10-22-2020, 08:50 PM
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I was pondering your question and figured start turning the flywheel. Whichever direction starts the intake valve opening first is correct rotation.
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Old 10-22-2020, 10:50 PM
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http://oldengine.org/docs/Witte_B_OM.pdf
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Old 10-22-2020, 10:53 PM
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Here it is. Not sure if how much it will help you.
Attached Files
File Type: pdf Witte_B_OM.pdf (1.61 MB, 10 views)
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http://www.swiftvets.com/phpBB2/viewtopic.php?t=24981

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