WD45 Fuel Bowl Screen

Anonymous-0 · Apr 28, 2012

Tractor"s been running fine lately but today just up and quit while mowing. Took fuel bowl off an noted that fuel will run out while the bowl is off but once it"s reinstalled no fuel will run to the bowl. Any ideas? Thank you.

Kip-Utah · Apr 28, 2012

May just be an air lock. Either loosen the bail nut on the strainer or the gas line at the carburator until you get the gas flowing. Kip

Bob Bancroft · Apr 28, 2012

The needle in the carb. is not opening (likely), or there is some other complete blockage between the bowl and carb(unlikely).

old · Apr 28, 2012

LOL If you really stop and think about it you would understand that is normal and what that means is the carb is full of gas and the float needle is up and shutting off the flow because the carb is full of gas. Once you would start the engine the sediment bowl would fill with gas and your problem that is between your ears would go away. Just to prove it try this. Take a soda straw and put your finger over the end then put it is a glass of water. Guess what it will not fill with water because it is full of air. Same thing applies to the sediment bowl on your tractor and you do not have a problem

old · Apr 28, 2012

WRONG that is normal if the carb is full of gas and once the carb need fuel the sediment bowl will fill

old · Apr 28, 2012

WRONG just means the carb is full of gas and the float is closing the needle in the carb so gas can not flow

chalmersbob(Pa) · Apr 28, 2012

OLD is right.
You could loosen the bowl and let it fill, then tighten the bowl. The bowl is full of AIR and it has to get out.
If the carb is full, the needle valve is closed, and the bowl will not fill. DAH!! Bob

Anonymous-0 · Apr 28, 2012

Thanks, Old, for your insight. Should've known better. Now that I know the system is working like it should I guess I'll head back out and mow another 15 minutes till it shuts down again. LOL

JMS/.MN · Apr 28, 2012

Instant quits are usually electrical. Sputtering quits are usually fuel issues. Is the coil extremely hot when this happens, then tractor will re-start after cooling down?

Anonymous-0 · Apr 28, 2012

Mo Dave you said that the tractor quit. Was the fuel bowl or screen pluged when you took them off? You didn't say if fuel bowl was full of fuel when it quit. If they were clean you still may have a problem. You might have something floating around in fuel tank.

old · Apr 28, 2012

Again the problem you have is something simple like a bit of rust or dirt in the tank or even a lief from a tree in the tank and as you use the tractor the stuff be it what ever floats over the sediment bowl pipe and then clogs it up and you have not fuel so it dies. Have had that happen many many many times and it does not take much to do that so you need to have a good look see in the tank to see what you have in it that should not be in it. On one of my tractors I had a couple Lief's and that was enough to stop fuel flow till it sat a few minutes and off I could go till they floated over the sediment bowl inlet and then no go

old · Apr 28, 2012

I always get a laugh when some one say I have a problem I took the sediment bowl off and now it does not fill with gas but simple physic says if can not fill with gas because it is already full but few people understand air is in fact a type of fluid all be it not one you can see or pour

Bob Bancroft · Apr 29, 2012

Please explain further.
If the needle is closed, it is generally because the bowl is full!
Where am I WRONG?
But I have seen them swelled/stuck shut also.

Plant Doctor · Apr 29, 2012

Probably going to get myself in trouble here, as I am not at all familiar with a WD45 carb, but all the carbs I have ever worked on, and that's far more then just a couple, had a vent bowl somewhere just for the reason described in this post, to prevent air from locking out the in coming gas. So maybe the bowl vent is blocked in your WD45? Some of these vents can be difficult to locate as they are small and may have several turns in the passage, but I would suggest looking for it.

Bob Bancroft · Apr 29, 2012

Only way you'll get into trouble here is if old wakes up in the same condition he was in last night!
Plugged carb. bowl vent is another of many possibilities, unlikely, but possible.
I have seen enough crud get past the sediment bowl and plug the little hole in the seat just ahead of the needle to stop flow. This being the second possibility I mention in my original statement.

old · Apr 29, 2012

If the carb if in fact full of gas and you then take the sediment bowl iff and empty it then put it back on the sediment bowl WILL NOT fill with gas unless the gasket is not sealing or the carb has run dry of gas but if the float is still holding the needle in the seat then the sediment bowl will NOT fill with gas because it is already full of what you ask well air of course

old · Apr 29, 2012

As I said if the carb bowl if full of gas the sediment bowl can not fill back up till the float drops and calls for more gas and the bowl vent by the way when the carb bowl is full will have gas closing it off in 99% of the carbs I have ever messed with on old tractors and I do mess with lots of carbs and lots of old tractors

old · Apr 29, 2012

By the way the carb vent is after the fuel line and float needle so it dose not come into play as for the sediment bowl filling or not

Bob Bancroft · Apr 29, 2012

I understand all that.
You still haven't shown where anything I stated was WRONG!?

Plant Doctor · Apr 29, 2012

Maybe I can get myself out of trouble. I only read the first Mo Dave post regarding the fuel bowl which I took to be the carb bowl and not sediment bowl. I have to side with Old on this, the sediment bowl can not fill after being emptied and tightly reinstalled as long as the carb float valve is closed. There is no place for the air in the sediment bowl to go causing an airlock in the sediment bowl. Once the tractor is started and using the gas in the carb, the float valve will open and the gas should flow into the sediment bowl and carb bowl. If there is not gas flow after the tractor is started look for a blocked float valve of blockage in the gas tank. I say Old has it correct.

old · Apr 29, 2012

Thank you. I see this problem that is in fact not a problem asked about all the time and I bet I have said the same thing at least 100 times in the years I have been posting on this site but then people do not always understand the fuel systems on tractors

Brian G. NY · Apr 30, 2012

Yes, Old has it right and when I install the sediment bowl, I know that if it does not fill with gas, it confirms that I have a good seal between the bowl and the housing.

old · Apr 30, 2012

Also conforms that the float needle is working as it should and yep the sediment bowl gasket is good and has sealed well

WD45 Fuel Bowl Screen

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