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Farmall & IHC Tractors Discussion Forum
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trouble with H ,any suggestions?

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dave SouthDakot

11-06-2007 20:24:30




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I am helping my neighbor with his H.We cleaned the carb and put a kit in ,also filed and set the points(magneto). the tractor starts and idles nice but wants to stall when advancing the throttle then levels out and runs but not running smooth and not getting enough power.
We tried opening up the main jet more but doesnt do the trick either. We dont know much about IHC magnetos but was wondering if it could be that the magneto isnt advancing? or more likely in the governor? any help would be appreciated

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Brownie450

11-08-2007 15:12:39




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 Re: trouble with H ,any suggestions? in reply to dave SouthDakota, 11-06-2007 20:24:30  
The small carbon spring-loaded contact in the center of the distributor cap is in place, isn't it?



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GordoSD

11-07-2007 15:17:20




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 Re: trouble with H ,any suggestions? in reply to dave SouthDakota, 11-06-2007 20:24:30  
Where in SD are you. Maybe I can come by and help you out.

Gordo (Mitchell)



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dave South Dakota

11-07-2007 15:30:48




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 Re: trouble with H ,any suggestions? in reply to GordoSD, 11-07-2007 15:17:20  
way up by sisseton , long ways away. thanks anyhow. we put the project on hold for a few days so we can get some other work done now. thanks for all the advice everyone. we will give it a try in a day or 2



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dave South Dakota

11-07-2007 07:06:15




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 Re: trouble with H ,any suggestions? in reply to dave SouthDakota, 11-06-2007 20:24:30  
thanks for all the replies, electrical system is clean with good spark and good wires(real wire not autowires)and carb is getting gas to the engine as it will load up with fuel if you open the main jet. but we took the governor cover off and noticed the idle stop screw is not on the stop on low throttle and wont adjust any further, I dont know if the carb was ever changed on this tractor, but shouldnt the throttle butterfly completely close?? it is hanging open, is the carb / gov not synchronized ?? the manual says to adjust at high idle but what about low speed?

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RustyFarmall

11-07-2007 07:47:43




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 Re: trouble with H ,any suggestions? in reply to dave South Dakota, 11-07-2007 07:06:15  
Button that governor back up again. I won't say that the governor does not need some attention, but that is not your problem. Do make sure that the little tang on the shaft that comes from the gov. is engaged properly into the slot in the throttle shaft of the carb. Next, remove the carb, open it up, and make sure that the float is free to move up and down, is not binding or rubbing on anything, does not have a small pinhole in it, and is adjusted to the proper float height and float drop. Float height and drop is critical. While you're at it, turn that main load scew back in until it seats, and then turn it back out 3 full turns and leave it there. If the engine will not run at that setting, you still have dirt and crud in that carb.

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Brownie450

11-07-2007 05:31:04




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 Re: trouble with H ,any suggestions? in reply to dave SouthDakota, 11-06-2007 20:24:30  
As Old says--is gas getting to the engine? When it is running, squirt some oil on the intake manifold/ head joint to see if the engine speed varies. Could be a manifold gasket leak. Second thing to check is the rotor position in relation to spark plug wire contacts inside the distributor cap. Our A with a mag acted a lot like yours, & it turned out that the timing gears on the rotor were off by 2 teeth. If nothing else fixes the problem, might be worth a look.

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RustyFarmall

11-07-2007 04:34:41




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 Re: trouble with H ,any suggestions? in reply to dave SouthDakota, 11-06-2007 20:24:30  
They will all stumble and miss like that for a few minutes until the engine gets warmed up a bit. If that is not the problem, you might possibly need to go back into the carb. I'm thinking that you missed some crud in there.



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Pat-CT

11-07-2007 04:17:31




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 Re: trouble with H ,any suggestions? in reply to dave SouthDakota, 11-06-2007 20:24:30  
check the coper or brass piece at the end of the spark plug wiresreason why is because i ahd my h running but i guess the spark was arcing on the wire and burned it right off it idled nice but when i gave it throttle it would sputter horribly



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El Toro

11-07-2007 03:55:59




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 Re: trouble with H ,any suggestions? in reply to dave SouthDakota, 11-06-2007 20:24:30  
I would replace the condenser and make sure your points are set at .013" then pull the coil wire from the cap and hold near a good ground while someone makes an attempt to start the tractor. You should have a hot blue spark. Your plug wires need to be copper wired too. If you still
have a weak fire from the coil wire you may have a weak coil or the magnets may be weak and don't have strong magnetism. They're easy to check by touching them with a flatblade screwdriver. They should attract that screwdriver with a lot of effort. Hal

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gene bender

11-07-2007 01:54:57




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 Re: trouble with H ,any suggestions? in reply to dave SouthDakota, 11-06-2007 20:24:30  
As soon as the mag fires and the engine runs the mag goes to 33 or so advance and you cannot change that so your problem is not the mag. Check as always compression with either cold or warm engine as we just want a reading and have them all pretty much alike. Then maybe new plugs sounds more like spark cause if it is out of gas it would die.



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Paul Shuler

11-06-2007 20:28:38




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 Re: trouble with H ,any suggestions? in reply to dave SouthDakota, 11-06-2007 20:24:30  
My first thought would be restricted gas flow from the tank or maybe restricted air from the air cleaner. Just a thought.



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dave South Dakota

11-06-2007 20:32:52




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 Re: trouble with H ,any suggestions? in reply to Paul Shuler, 11-06-2007 20:28:38  
thanks for the reply but there is plenty of fuel, and was running with air cleaner pipe off



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old

11-06-2007 20:48:36




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 Re: trouble with H ,any suggestions? in reply to dave South Dakota, 11-06-2007 20:32:52  
Are you saying plenty of gas to the carb or to the engine, two different things. What happens if you choke it when you try to get the RPMs up more?? Also does it have a good white/blue spark?? Also does it have true wire plug wires of does it have auto type plug wires? Can you adjust the main jet to the point that you get black smoke?? If not then you may have missed something in the carb which is easy to do

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