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Farmall & IHC Tractors Discussion Forum
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12 oh 6

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Larry806

05-20-2005 15:02:27




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Phil's ( my son) 1206 hasn't idled right since he rebuilt it. He bought it as a basket case that had been ran out of oil. He has over 4000 in the motor including rebuilt fuel pump & injectors. It lopes at idle I kept thinking it was out of time We even pulled the motor out of the frame & removed the front cover to check it. last spring when we put the new clutch & torque in. As soon as you give it some throttle it smoothes out.Several people we've talked to have said change the injectors again. Wednesday afternoon he was drilling with it & no. 1 injector line started leaking at the pump. The line was cracked. He got another line & started it. It runs 80% better than it ever has.It is not perfect yet . Now my question is do we go ahead & change all the other lines hoping to get it straightened out? I never would have believed it was a line anyone ever heard of that?

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JJK

05-20-2005 23:14:27




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 Re: 12 oh 6 in reply to Larry806, 05-20-2005 15:02:27  
From what you described it would seem to me that the govoner isn't set right in the pump. As long as its a lope and not a miss and clears up when you bump the throttle up. Not sure why people will assume injectors all the time when something don't run right, maybe its just to easy to say that when their not familliar with the system. Might want to check the other injector lines for wear spots that could be getting thin and for lines that might be bent out of original shape, twisted, or slightly kinked. If you feel like taking the lines off again maybe try flushing them out and blow shop air to clean out any junk that may be in them.

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Aces

05-20-2005 15:39:24




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 Re: 12 oh 6 in reply to Larry806, 05-20-2005 15:02:27  
Larry Yes it could be the lines. Here is the deal buying the tractor as he did maybe the lines were not all the same as for instance the 806 would have had different lines than the 1206 and the 4100 would be fifferent yet. The orifice in the end of the line at the injector is different. So who knows what it has on it, you will have to find out what a 1206 should have for orifice diameter and check them all. A line off a 806 opn a 1206 will make it run bad a line off 1206 on a 806 will make it run bad. The other thing we run into on the 56's was they needed an extra spring in side the pump to steady the govener, you might try it if the lines don't do the job.

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Larry806

05-20-2005 17:31:34




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 Re: 12 oh 6 in reply to Aces, 05-20-2005 15:39:24  
The fuel lines were on it when he got it. I'm pretty sure there the orignal lines



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