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Farmall & IHC Tractors Discussion Forum
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mag problems on U1

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new to IHC

10-28-2007 10:48:50




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Can anyone tell me where I can get information on how to work on a mag for a U1 power unit. The mag is the same as on a cub. The serial mumber is J4159281. It fires weak and I am not sure if I have it in time or not. Thanks for any information. Johnny.




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El Toro

10-28-2007 14:23:31




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 Re: mag problems on U1 in reply to new to IHC, 10-28-2007 10:48:50  
third party image

If you pulled the mag this may help. You can't use the screwdriver since the valves are in the block. Hal



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John M

10-28-2007 17:39:53




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 Re: mag problems on U1 in reply to El Toro, 10-28-2007 14:23:31  
Yea you can, in through the spark plug hole. Done it several times. Thast why they say a LARGE handle screwdriver, so it wont fall into the hole. Just have to be easy pulliung on the handcrank.



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new to IHC

10-28-2007 15:15:43




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 Re: mag problems on U1 in reply to El Toro, 10-28-2007 14:23:31  
thanks El Toro



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new to IHC

10-28-2007 12:47:03




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 Re: mag problems on U1 in reply to new to IHC, 10-28-2007 10:48:50  
Bob
Thanks for the help. I found the site you told me about and it had some helpful information. Thanks again Johnny.



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Bob

10-28-2007 11:11:49




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 Re: mag problems on U1 in reply to new to IHC, 10-28-2007 10:48:50  
Timing... the impulse should "trip" @ #1 TDC.

Need more info? I thought I posted the link to Rudi's Cubs for you a couple of days ago?

ANYHOW, here's the link:

Link

Your mag is covered on pages 3, 4 ,6, and 6.



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