For the past several years my 20 year old LX186 has started failing after an hour or so of mowing. Running along just fine then it dies very quickly (few seconds). Waiting 30 min and it starts quickly and will run a while longer then die again.
At time engine dies, the normally full fuel filter is empty. Bubbles can be seen coming up the gas line as it attaches to the filter. It is quite warm, hot, in the engine compartment at time engine dies. Engine is just not getting fuel.. buy why?
I've checked the fuel tank cover - vent is working and loosening it greatly does not prevent problem. I have verified good airflow over the engine - have flushed out the path cooling air takes.
Engine oil is changed on schedule as is air filter & cleaner. Engine runs smoothly with lots of power from cold to just before engine dies.
I'm using regular unleaded gas from Kwik Trip - have for years- it is not "supposed" to have any ethanol in it, but since I observe bubbling in the line only when the fuel line get hot, ethanol boiling could be a possibility.
Fuel pump seems to be working fine, it is just not getting liquid gas in the fuel filter to pump. I noticed the vent(?) on the side of the fuel pump has a hole that has many brass pins in it. I assume that is a vent of some kind. It may have dirt/dust in between the pins. Is that anything to worry about? Could it be the pump is not pulling fuel as well when it gets hot?
Any suggestions would be most welcome!
At time engine dies, the normally full fuel filter is empty. Bubbles can be seen coming up the gas line as it attaches to the filter. It is quite warm, hot, in the engine compartment at time engine dies. Engine is just not getting fuel.. buy why?
I've checked the fuel tank cover - vent is working and loosening it greatly does not prevent problem. I have verified good airflow over the engine - have flushed out the path cooling air takes.
Engine oil is changed on schedule as is air filter & cleaner. Engine runs smoothly with lots of power from cold to just before engine dies.
I'm using regular unleaded gas from Kwik Trip - have for years- it is not "supposed" to have any ethanol in it, but since I observe bubbling in the line only when the fuel line get hot, ethanol boiling could be a possibility.
Fuel pump seems to be working fine, it is just not getting liquid gas in the fuel filter to pump. I noticed the vent(?) on the side of the fuel pump has a hole that has many brass pins in it. I assume that is a vent of some kind. It may have dirt/dust in between the pins. Is that anything to worry about? Could it be the pump is not pulling fuel as well when it gets hot?
Any suggestions would be most welcome!