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John Deere Tractors Discussion Forum
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sediment bowl 1951 Model A

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Jon Hurley

03-25-2007 16:52:14




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I stored my 1951 Model A in my neighbor's barn for the winter. I went a couple of days ago to pick her up. The sediment bowl was half way empty. I turned the gas on and it filled up, I hooked the battery back up, turned on the switch and fired her right up.

What happened to the gas in the sediment bowl? Is the float to blame and let some of it into the cylinders? If it is, does it need to be lowered? I had it apart last year and put a new gasket kit in the carb and remember that the float was light and seemed dry. Should I even worry about it? She was in storage for about 4 1/2 months.

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Jon Hurley

03-26-2007 13:35:38




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 Re: sediment bowl 1951 Model A in reply to Jon Hurley, 03-25-2007 16:52:14  
The tank was full of gas which had fuel stabilizer in it. I had run it for about 20-30 minutes before I stored her. I had also disconnected the battery for storage.

I couln"t find any areas where it looked like gas leaked out and then evaporated. I suppose it could have from the bowl, even though it doesn"t leak. I"m hoping that since it was only half a bowl, that it shouldn"t cause too much trouble, even if it went into the crankcase.

Thanks for the input as always.

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Dave in SV

03-26-2007 09:29:37




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 Re: sediment bowl 1951 Model A in reply to Jon Hurley, 03-25-2007 16:52:14  
I believe the gas flows out of the top of the sediment bowl to the carb. The shut-off valve shuts off feed TO the sediment bowl. That being the case... my hunch is either:

1) evaporation,if the tank was dry or 2) a leak at the seal on the lip of the sediment bowl plus evaporation, or
3) I don't know what I'm talking about!



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DSK

03-25-2007 17:59:11




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 Re: sediment bowl 1951 Model A in reply to Jon Hurley, 03-25-2007 16:52:14  
How much gas was in the tank when you parked it for the winter? If you drained it completely you have nothing to be concerned about, the gas that was left in the bowl just evaporated half way. A more common explanation is that a 50 year old shut-off valve might not be in good enough shape to hold gas for 4 months or more, and even a new needle & seat can let gas by. Check how full the crankcase is, that's where the gas usually ends up.

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johns48jdb

03-25-2007 17:01:14




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 Re: sediment bowl 1951 Model A in reply to Jon Hurley, 03-25-2007 16:52:14  
i will hazzard a guess, but some of the more inteligent guys can probably give you a better answer. i would expect that it just leak out around some fitting on the carb or lines going to it. i hope you used some form of gas stabilizer in the gas and ran it for a few minutes after you put it in the gas tank before storing it for the winter. i would also hope that you disconnected the battery in case some rats decided to chew on some of the wiring and caused a short. i drove up at my neighbors one day and his 50 was sitting in the yard with the wires smoking on it. it hadn't been ran in about a week, but it was sure burning all the wires off of it. look for a leak by leaving the gas turned on an watching it close for a day or so.

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