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Farmall & IHC Tractors Discussion Forum
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Re: F-4 Mag is close ?

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rustred

02-08-2018 12:45:31




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use those two bolts on the mag coupler and get it closer to D. C. back the mag up a couple holes and try that. if you would do the screw driver thing it will tell you where the piston is when mag fires. get it to fire with lever just off the stop position with piston at tdc. if your firing as piston is going down your timing is too late, as in the 3/4" your talking about.




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banjoman09

02-08-2018 16:57:53




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 Re: F-4 Mag is close ? in reply to rustred, 02-08-2018 12:45:31  
ok...will do tomorrow.....I hope...full day again...but I dont want it to "snap" before....right.?



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rustred

02-08-2018 19:45:21




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 Re: F-4 Mag is close ? in reply to banjoman09, 02-08-2018 16:57:53  
with advance lever up get it to fire pretty much at d.c. then once it is running you have the lever to advance timing. remember to have lever not quite to the top as top is engine kill. thought it was running already.



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banjoman09

02-08-2018 19:50:35




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 Re: F-4 Mag is close ? in reply to rustred, 02-08-2018 19:45:21  
well ok....my book says "lever all the way to top(retard timing) when setting mag..... but either way should work ?



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rustred

02-09-2018 06:54:32




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 Re: F-4 Mag is close ? in reply to banjoman09, 02-08-2018 19:50:35  
that is correct, but u wont see the spark when lever is fully up, not a big deal as i have said to do the timing with lever up , but too many giving instructions and gets a person side tracked. i have been setting these mags for over forty years and had to learn it on my own from trial and error.never did look in a manual for the first one i tackled. i like to have it just off full retard position so i can see the spark.

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