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Farmall & IHC Tractors Discussion Forum
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1206 rough idle

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D M

04-16-2008 12:24:14




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I just bought a 1206 and I'm looking for help with figuring out what is causing it to idle so rough. Runs fine if you give it some throttle, but when it's just idling, it's rough. Puffs of white smoke. Any thoughts on the problem? Injector? Other?




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the tractor vet

04-16-2008 16:13:59




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 Re: 1206 rough idle in reply to D M, 04-16-2008 12:24:14  
Just how slow is it idealing at ?? the white smoke cluld mean low compression . How much blow by ?? whats the pump timing ??? How well does it start cold ???? The DT 361 is not and engine for the novice . I even cringes when working on one . One word of advice DO NOT TRY AND SET THE VALVES with the engine running. Good way to have a valve get to know a piston .



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Brownie450

04-16-2008 14:40:50




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 Re: 1206 rough idle in reply to D M, 04-16-2008 12:24:14  
Have you checked the valve lash?? Take a listen up front where the air intake is--if there is a kind of popping noise -- as opposed to a smooth-sounding intake, the valves might need adjusting. I guess the intake is up front on the 1206--like the 806 & 856's.



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