Several options.
Hole in tank, not likely
leak in fuel line fittings or fuel line.
Inside the carb:
Its possible that the float valve is not closing.
Fuel flows from tank, into carburetor, into a little bowl
that holds just the amount of gas the carburetor needs to operate.
A float sits in that bowl and opens/closes the valve.
If that valve does not close, the whole fuel tank will run into,
through, and out of the carb. It might run into the engine,
past the rings and end up in your oil, depends on which is
the easiest path for the gas to flow.
So, check the tank and fuel lines, try to determine where the drip
starts (possible dust the outside (OUTSIDE ONLY) with foot powder
to see where moisture starts. Don't get foot powder inside
the carb or engine, it will mess things up.
If the mower has been sitting idle all winter, might need
to clean the carburetor. Essentially taking it apart (carefully),
and spraying carb cleaner on all parts, and into all passages
(wear goggles when you do this, sometimes cleaner squirts
back out of those pasages). Lots of little passages
that need to be clear, and valves to seat, etc.
small fussy work, but not technically that hard.
especially since most mower carburetors are pretty simple.
Had to do that with a mower this weekend that would not start.
though I think it was more a matter of fuel not
getting all the way through the carb.
dave
On 04/30/2012 11:52 AM, Christine Hartmann wrote:
> I filled up the lawnmower gas tank and immediately saw dripping. It has continued. Could I have a hole in the gas tank, or is something clogged forcing gas out somewhere? Has anyone ever experienced this? So far I can't get it started anyway, but obviously this is not good.
>
>
> Christine - Mpls
--
Dave Uebele (daveu@sptddog.com)
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