4020 problems while running

kevin37b · Feb 10, 2014

Shopvac a gas tank ? Not a good idea .

ericl72 · Feb 10, 2014

Please explain. Thanks.

raheimdal · Feb 10, 2014

The danger of using a vacuum, is that gas vapors pass through the motor. If you have any sparking from the brushes, BOOM! :-(

diesel lover · Feb 10, 2014

ericl72 said:
I have a 4020 that ran really well up until November. It starts good , but idles rough and when you put it under load it stalls. If you pull the choke out it will come back to life and run OK. if you feather the choke back in, it will drive around OK in lower gear. Always runs rough and always stalls out under load. Does anyone else have this problem? I had it to the local Deere repair shop last year and it ran good after. Lat year we did the usual, new plugs ,points, condenser and coil. Also replaced the distributor cap. Also cleaned the carburator and changed the fuel filter. Any ideas?Thanks, Eric

sounds like the gasoline engine is running lean!!! Our Ferguson F40 has done this and every time there is a blockage found in a fuel line before the sediment bowl.

Lean fuel mixture

Large vacuum leak that your making disappear by cutting off some or all of the air supply

Carburetor issues causing a fuel delivery problem

I'm on the path to thinking you have an engine with a lean fuel mixture

ericl72 · Feb 13, 2014

Hi, I considered this, but I had drained the tank and it had sat empty for 24 hours. There was no liquid and little vapor. I also used a long hose so the motor was about six away. My vac has a separtion between the motor and the stuff you vacuum. Thanks.

diesel lover · Feb 14, 2014

ericl72 said:
Hi, I considered this, but I had drained the tank and it had sat empty for 24 hours. There was no liquid and little vapor. I also used a long hose so the motor was about six away. My vac has a separtion between the motor and the stuff you vacuum. Thanks.

HUH ? I was referring to vacuum created by the engine. Any older engine can have clogged up fuel lines etc

raheimdal · Feb 14, 2014

diesel lover said:
HUH ? I was referring to vacuum created by the engine. Any older engine can have clogged up fuel lines etc

ericl72 was replying to the post about using a shop-vac to remove sediment from the fuel tank.

diesel lover · Feb 14, 2014

raheimdal said:
ericl72 was replying to the post about using a shop-vac to remove sediment from the fuel tank.

Okay I can see that now. Thanks for pointing that out !

ericl72 · Feb 14, 2014

diesel lover said:
HUH ? I was referring to vacuum created by the engine. Any older engine can have clogged up fuel lines etc

Hi,
An earlier posthad warned me against using a shopvac to vacuum out a gas tank. I was replying to that.

kevin37b · Feb 14, 2014

ericl72 said:
Hi, I considered this, but I had drained the tank and it had sat empty for 24 hours. There was no liquid and little vapor. I also used a long hose so the motor was about six away. My vac has a separtion between the motor and the stuff you vacuum. Thanks.[/QUOTE A little vapor is all it takes . Explain your separation unit .