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Denis in MI 
Orange Level
Joined: 15 Sep 2009
Location: Norvell, MI
Points: 832
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 Topic: (off color sorry) Need Le Roi Mag help
Posted: 22 Jan 2010 at 9:10pm |
We are having trouble with a Le Roi Generator the neighbor has the adjustable drive cup on the WICO mag stripped and caused it to not run so we swapped on a fairbanks off of a wc but can not get it advanced enough. Are these engines different or is the timming gear wrong and that is why it had the adjustable drive cup.
Thanks in advance for any help and sorry for the off color post,
Denis
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1938 B, 1945 B, 1941 IB, 1949 C, 2 1938 WCs, 3 1950 WDs, 1951 WD, 2 1955 WD45, 1957 D-14
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EricTn
Silver Level
Joined: 11 Sep 2009
Location: Mid Tenn
Points: 98
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Posted: 22 Jan 2010 at 9:31pm |
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I know little about magnetos but this site might help you or someone else here. I'll share info. Seems to me less info sharing since we have private messages now. http://www.magnetoparts.com
hope this helps. Eric
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Steve in NJ
Orange Level Access
Joined: 12 Sep 2009
Location: Andover, NJ
Points: 11883
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Posted: 23 Jan 2010 at 9:03am |
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Sounds like a "C" style Wico Mag that's on the LeRoi. You have to be careful swapping over impulse and drive parts from different mfr's. Lag angle comes into view here, and not all Mag and Mag parts are interchangeable. The Wico "C" could be used on quite a few applications with its adjustable lag angle feature, but if the adjustable impulse is bad, you need to replace it with the same type impulse so you can get the engine timing back correctly and know that your drive components are correct. You'll do more damage than good here... HTH
Steve@B&B
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Denis in MI
Orange Level
Joined: 15 Sep 2009
Location: Norvell, MI
Points: 832
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Posted: 23 Jan 2010 at 10:47am |
It is a XH-2500 WICO and we swapped on a Fairbanks Morse FM-J4 of of a WC I figured that the mag should work but now I think that the timing gear is off and that is why they put on a adjustable timing mag. we have it fully advanced and we are about 10 degrees ATDC and we need to be 30 degrees BTDC if we move the wires 1 hole counter clockwise and tilt the mag toward the block to fully retard it would we be in the ball park.
Thanks again,
Denis
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1938 B, 1945 B, 1941 IB, 1949 C, 2 1938 WCs, 3 1950 WDs, 1951 WD, 2 1955 WD45, 1957 D-14
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R Aiken
Orange Level
Joined: 11 Sep 2009
Location: wc Ohio
Points: 1370
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Posted: 23 Jan 2010 at 11:35am |
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Move your govener timeing gear a tooth or two whitch ever way to make it right.
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