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Farmall & IHC Tractors Discussion Board |
Re: IH504 problems
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Posted by Sean in Calgary on August 08, 2003 at 14:33:43 from (216.94.7.66):
In Reply to: IH504 problems posted by Chad on August 08, 2003 at 12:27:53:
I am sure there are far more qualified people who will help you out but I will say that this sounds very much like what was going on with my 350Utility Gas. One thing you did not mention is how long after you start your machine does it start spluttering. For me, I could get about 1.5 minutes at 2/3 throttle before it started to die off on me. If I pulled (closed) the joke as soon as it started to splutter I could get another minute or so out of it. Let it sit for 10 minutes, it would start right up and then go through the same cycle on me. The problem - fuel delivery. I had a mostly plugged fuel system from the tank to the filter screen that was in the bowl. The gas would slowly trickle into the bowl in the bottom of the carb and then the tractor would run until it emptied the carb. To isolate that as the problem I pulled the gas line off the carb and was only getting a slow trickle of gas. I blew all the gunk out of the system by running compressed air backwards through the fuel line into the gas tank. As soon as I did that, the fuel came running out of the line VERY quickly. I then had to solve the problem which as causing the plugged up line - rust in gas tank. The short version of this is that a slow fuel system will allow the carb to fill when tractor not running and then engine will run well until carb is drained. The fact that pulling your choke allows you to keep it running a little longer points you in the direction of fuel delivery not ignition. Regards,
Sean
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