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  #1  
Old 20-01-23, 19:47
James D Teel II James D Teel II is offline
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Are you talking about the automatic cutout? Photo courtesy of Jacques Fortin.
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  #2  
Old 20-01-23, 23:25
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Jordan Baker Jordan Baker is offline
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Yes. I’d check that to start. There isn’t much to go wrong in them
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Old 21-01-23, 00:11
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Hi James

Have you tried connecting a load i.e. a car battery or a older 12V Car headlight ?

The cutout contacts might be sticky or dirty.

You can use your multimeter to check the field coils for continuity.

The rheostat ( control knob ) winding might need cleaning as well.

A aerosol can of electrical cleaner sprayed into the cutout and rheostat is a good start. No need to pull things apart to begin with.
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Last edited by Mike K; 21-01-23 at 00:18.
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Old 21-01-23, 00:57
James D Teel II James D Teel II is offline
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Hi Mike. I did try to start it with a good 12v battery. It will barely turn. You’re the second to suggest that it might be a dirty rheostat. It has to be something simple.
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Edmond, Oklahoma
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1943 Willys MB/ITM jeep
1942 SS Cars No1Mk1 LtWt trailer
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Old 21-01-23, 02:52
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Quote:
Originally Posted by James D Teel II View Post
Hi Mike. I did try to start it with a good 12v battery. It will barely turn. You’re the second to suggest that it might be a dirty rheostat. It has to be something simple.
Could also be worn brushes or the commutator needs cleaning - or the brushes not seating correctly.

The OM&M made examples are more common here.

The post-war British made BSA manual is on-line http://www.howardengineerium.co.uk/I...t%20Manual.pdf
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1941 Morris-Commercial CS8
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1942-45 Jeep salad

Last edited by Mike K; 21-01-23 at 06:01.
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Old 21-01-23, 14:38
James D Teel II James D Teel II is offline
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All good suggestions, and thanks for that manual. It’s slightly different than the one I have.
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James D. Teel II
Edmond, Oklahoma
Retired Police Sergeant/Bomb Tech
1943 Willys MB/ITM jeep
1942 SS Cars No1Mk1 LtWt trailer
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  #7  
Old 22-01-23, 22:37
James D Teel II James D Teel II is offline
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Anyone have any idea what the resistance value of this filterette is supposed to be? All I’m getting when I try to use a battery to start the set is a spark at the start switch and the set just tries to turn.

Attached link is of me trying to start it before restoration. It wouldn’t start because the magneto was bad amongst other things. As you can see, it’s turning very well here.
https://youtube.com/shorts/b1L97ZSMhms?feature=share
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File Type: jpeg 15193654-F4C7-4686-BAD2-615DEAC7FA06.jpeg (25.1 KB, 91 views)
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1943 Willys MB/ITM jeep
1942 SS Cars No1Mk1 LtWt trailer
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