300 engine problem

[IAMIKE]

Was going to use the 300 today to pull a plow over to the other place, got it out and headed down the road. I didnt even make a mile, and it started acting up. Cuts out, stalls, wont run if it more than half open on the throttle. No smoke, no unusual noises. Runs fine if idling, but at the first hint of a load it craps out. I have never had a problem with it before. Fresh gas, new plugs and inline fuel filter this spring. I rebuilt the carb last summer when I bought the thing, as it had been sitting for some time. Any thoughts?

 

[kub6040]

Fuel filter is restricting fuel flow , you aren't
getting enough fuel to run the tractor , pull fuel
line at carb and check for fuel flow.

 

[El Toro]

Is that inline filter for a gravity flow system?
Hal

 

[rankrank1]

Agree with the others, Add on Fuel filters can be a problem for gravity flow systems. Defintiely would eliminate that as it is likely restricting flow. You sediment bulb system is all you need anyway.

 

[ken house]

have similar problem with c that has set over winter. usually my problem is trash in the gas cut off.

 

[rankrank1]

(quoted from post at 19:51:13 06/08/14) ...usually my problem is trash in the gas cut off....

Yep, I have had that problem too. Using compressed air and blow nozzle to blow the fuel line backwards up into the tank will get you going again in the short term if this is your problem.

I had to do this to my h last year when I ran it out of fuel. pulled all that crud in the bottom of the tank into the shutoff valve. Should clean the tank, but it is otherwise fine as long as as I do not run it low on fuel.

 

[IAMIKE]

I am assuming it is. Its the steel type with hose barb on each end. That's what it had before, I just changed it when I noticed the sediment bulb would get half full of crud after a few days of use. I will check for flow though. Thanks.

 

[Nebraska Kirk]

Sounds like the sediment bowl is doing it's job by catching and holding the crud. Remove and clean the bowl and get rid of the inline fuel filter or make sure it is one specifically made for gravity flow fuel systems.

 

[jeffcat]

Some of the IH carbs have a little 1/8 plug on the side almost bottom area of the bowl on the carb. If you didn't lossen that up when you rebuilt, now is the time and drain out the crud, water,etc. Lose the inline and just us your bowl type filter WITH THE SCREEN in it. You can make a little brass screen if you can find the 'Woven cloth' at an old parts place. Gravely had it too. Jeffcat

 

[Anonymous-0]

Make sure the air vent to the gas tank isn't blocked or restricted.

 

[Gary Mitchell]

Or, an intake manifold gasket sprung a leak.

 

[mkirsch]

More to the point: How are you getting that much crud in your sediment bowl?

I would normally ask you to humor us and try without the fuel filter, but if you're getting a 1/2 full sediment bowl in a few minutes worth of running, you've got other issues to deal with first.

It might be a good idea to let the fuel run through the sediment bowl into a clean gas can, then dump it back in, and let it run through again. WITHOUT the filter. Let the sediment bowl do its job. Do as many times as necessary until the sediment bowl doesn't fill up with crud.

 

[IAMIKE]

It takes a few days to get that full of crap. The tractor sat for 2 yrs outside and I think it rusted some in the tank. But a lot of what I see don't look like rust. Its more dirt like very fine stuff. I am going to take the tank off and boil it out good this weekend, that will eliminate a lot of headache.