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L110 John Deere Tractor gas smell

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dkinnie
Join Date: Apr 2016
Posts: 4 Rochester,mi
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2016-04-22          195006

I have a John Deer L110 lawn tractor. After I fill the tractor up there is a gas smell. I see no visible leaks. Any ideas?

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L110 John Deere Tractor gas smell

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kthompson
Join Date: Oct 2005
Posts: 5275 South Carolina
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2016-04-23          195017

Does the gas leak down when the mower is not running? If not would doubt you have a leak in the tank or hose.

Could be a little is being splashed but not enough you are noticing it.
Are you filling when the engine is hot and it is heating the tank some where the gas is doing some evaporating?
Could it be the smell is coming from the tank you are pouring the gas from? Is it a new tank? kt ....

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DennisCTB
Join Date: Nov 1998
Posts: 2709 NorthWest NJ
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2016-04-23          195020

I would check all the hoses to see if they have dried out. On a kohler engine I had the fuel pump diaphragm had a small tear so it still worked but it had a tiny leak and gas smell. ....

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L110 John Deere Tractor gas smell

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dkinnie
Join Date: Apr 2016
Posts: 4 Rochester,mi
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2016-04-25          195037

There is no noticable gas leaking anywhere. I do not fill it up hot. I only filled the tank halfway. After cutting the grass I let the mower cool down. I then put it in my garage. That is when you notice the smell of gas. ....

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kthompson
Join Date: Oct 2005
Posts: 5275 South Carolina
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2016-04-25          195044

How about the gasket on the tank cap? ....

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L110 John Deere Tractor gas smell

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kthompson
Join Date: Oct 2005
Posts: 5275 South Carolina
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2016-04-26          195050

Is it possible the carburetor is leaking when the engine is not running a little but enough gas is building up in the exhaust system which would be little hard to spot? Would think this would only be issue if the gas tank is higher than the carburetor is. ....

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L110 John Deere Tractor gas smell

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DennisCTB
Join Date: Nov 1998
Posts: 2709 NorthWest NJ
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2016-04-26          195052

How old is the Machine? How long have you owned it?

Any recent work done on it?

Clean thoroughly all areas on tank, fuel lines, carburetor, fuel pump so you can see everything as clear as possible.

I would take it outside and disconnect the spark plug, have someone crank the engine a little while you observe for leaks. Stop cranking and feel all areas for fuel seepage.

The leak is probably very small and why you only smell in garage or in an area with little ventilation.

If it is the carburetor, gaskets could be bad, or needle valve and seat which controls the amount of fuel in the bowl like a toilet. If needle and seat worn out when engine off bowl keeps filling. ....

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Fixed80
Join Date: Mar 2021
Posts: 2 PA.
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2021-03-22          200165

Replace the gas tank and a new gas cap.The seams on the side of the tank leak . Fuel pump is strong enough to implode the tank and crack it on bottom if fuel cap is clogged a bit. ....

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