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Dies While Working Update

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Russell TX

02-28-2001 19:29:01




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To Norm, Patrick, Al, Phil, and Snowplow. Just wanted to say thanks for your input and let you know where I'm at on my situation. Yesterday, I restarted my tractor and it would run for only about 30 seconds to 1 minute and die. It was very inconsistent as to how long it would run. I pulled the carb off and opened it up and everything looked fine. I also disconnected the gas line at the carb and had a steady stream of gas - but more of a steady dribble rather than a solid stream. I reconnected at the carb and then disconnected the gas line at the gas bowl and opened up the gas regulator wheel and got the same dribble stream. To rule out a gas feed problem, I took some clear plastic fuel line and slipped it over the end of the gas line I disconnected from the fuel regulator and siphoned gas into the line after placing the other end of the hose in the fuel tank. This provided a direct line of gas that bypassed the fuel regulator and bowl at the tank. I then cranked her up and she ran and ran and ran. I then reconnected the gas line to the regulator, started her up and she ran about 20 seconds and quit again. I also had the gas cap off at the time so I know it's not a problem with a clogged gas air vent. So - I'm thinking I either have a clogged screen inside the tank (which I doubt since I pulled the fuel regulator about 2 weeks ago and everything was clear and clean and the tank looked amazingly clean on the inside) or there is some restriction in the fuel regulator itself. I'll check it tomorrow and report back. Does anyone know the mechanism on the fuel shut-off and what might be restricting the flow? Or...am I overlooking something else that could be creating this problem?

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Snowplow

03-01-2001 17:15:29




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 Re: Dies While Working Update in reply to Russell TX, 02-28-2001 19:29:01  
I have cleaned out the entire fuel line on seveal occasions looking for the culpret. You have a screen on the carb inlet.
One in the bowl. One in the tank. I think that's it. There is a scrren in the bowl and sometimes a filter like the one that goes directly into the carb. Also it could be a combination of several.

I had fuel flow problem and it turned out to be the flow shut off. Mine is clogged in such a way that I have to open it up all the way (reserve) in order to get good flow.

Good luck!

ps If you bought a coil, put it on the shelf, they are good to have around although a little $$$. They might not take it back anyway.

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Dale O'9N

03-01-2001 09:36:22




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 Re: Dies While Working Update in reply to Russell TX, 02-28-2001 19:29:01  
Russell, Once I had trouble keeping my 9n running. To find the cause I looked at all the same things you have. Finally I took the gas tank from my jon boat and put good gas in it, then hooked directly to the carb line. The problem was still there, so It told me the trouble was from the carb on. It turned out to be the points. Your problem seems to be gas flow. This test will help you figure it out quickly. Best of luck. Dale in VA.

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KenB-2N

03-01-2001 08:34:03




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 Re: Dies While Working Update in reply to Russell TX, 02-28-2001 19:29:01  
Mine has a new gas valve and re-built tank, and it has the tendancy to "dribble"/"surge" when the gas level is below 1/4 tank. Works great when it is above 1/4 tank. Just another thought. Still sounds like ignition to me. I had that same problem and it did not go away until I replaced the COIL!



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Charlie in TX

03-01-2001 06:44:18




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 Re: Dies While Working Update in reply to Russell TX, 02-28-2001 19:29:01  
Russ, there is a screen on top of the glass bowl. Unscrew the thumb-screw at the bottom of the glass bowl. Get the screen out and clean it.

On my tractor, if I turn the fuel valve off and run the tractor out of gas, I can see air ontop of the fuel in the bowl. The gas gets very noticable turbulance when I turn the gas on.



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Phil (AZ)

03-01-2001 06:31:17




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 Re: Dies While Working Update in reply to Russell TX, 02-28-2001 19:29:01  
Russell, The on/off valve can be defective. I know that Propane/Gas valves only work correctly when they are fully open or fully closed. I don't know the why.

Phil



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Brad

03-01-2001 10:55:35




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 Re: Re: Dies While Working Update in reply to Phil (AZ), 03-01-2001 06:31:17  
That's because when propane leaves the tank it undergoes a change of state...liquid to gas. There needs to be plenty of room for expansion. Plus, if there is any moisture in the propane it will freeze and block the valve.



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Phil (AZ)

03-01-2001 22:41:00




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 Re: Re: Re: Dies While Working Update in reply to Brad, 03-01-2001 10:55:35  
Brad, Thanks! now I know the why.



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TimK

03-01-2001 06:25:59




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 Re: Dies While Working Update in reply to Russell TX, 02-28-2001 19:29:01  
Ah, I'm not convinced about this fuel problem diagnosis. It seems to me that even with a restricted gas flow, overnight the carb bowl should fill up with gas and run the tractor for more than just 20 seconds, at least for several minutes I suspicion. Russell, start her up again, but just for the heck of it, jumper around the ignition switch and see what happens. My $.02



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Al English

02-28-2001 21:20:43




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 Re: Dies While Working Update in reply to Russell TX, 02-28-2001 19:29:01  
Hi Russell, The fuel shut-off mechanism is nothing more than a screw. There are a couple of small passages in it that could be obstructed with the dreaded "crud". I believe there is also a screen in the bowl assy. No, I don't think you're overlooking anything, it sounds like you have the problem narrowed down pretty well. There was recently a series of posts on this subject. The link will take you there...Al English

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STUMP PULLER TX

02-28-2001 20:20:05




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 Re: Dies While Working Update in reply to Russell TX, 02-28-2001 19:29:01  
YOU OBVIOUSLY HAVE A FUEL FLOW PROBLEM. TAKE THAT FUEL BOWL OFF AND GET THAT SCREEN INSIDE THE GAS TANK CLEANED. YOU SHOULD HAVE A GOOD STREAM FLOW, NO DRIBBLING. GOOD LUCK



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