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Okay, All You Smart Guys, What's Going On Here....

A

Anonymous-0

Well-known Member
....My old Fergie isn't getting gas to the carb. I've taken the line off and blown it out several times. I've taken the sediment bowl and shutoff valve unit off and have cleaned both filter screens and have blown it through several times.

I can take the line off of the shutoff valve/sediment bowl and gas flows fine. Reconnect the line and remove it at the carb.....no gas.

I have run a temporary line from the valve to the carb. No gas at the carb....

The filler cap is well vented and I have removed it and tried with the same results.

What's happening here?
 
Your needle/float is stuck in the closed position either by mechanical interference or the needle and seat have fuel and or contamination residue
sticking it.
 
(quoted from post at 21:18:32 05/18/16) hot wrench,

Hat in hand, do you have gas in the tank that exceeds the standpipe? Not meant smart alecky.

D.
Click to expand...

Yes I do. As stated in the op, gas will flow from the sediment bowl.
 
Clean the sediment assy again cause if its clean gas will flow out with out the line attached you just mite have something blocking the inlet. I would remove it and check the tank close cause something is stopping gas flow out of the carb end of the gas line.
 
juicybusa2- Why scratch your answer? That's exactly what I thought.

I figure if the float needle valve is stuck closed, it is not opening and blocking the fuel to flow into the carb bowl.
 
(quoted from post at 21:25:07 05/18/16) Clean the sediment assy again cause if its clean gas will flow out with out the line attached you just mite have something blocking the inlet. I would remove it and check the tank close cause something is stopping gas flow out of the carb end of the gas line.
Click to expand...

As stated in the op, gas will flow at the sediment bowl outlet.
 
Your saying, that with the line disconnected at the carburetor, no gas flows from the line? Or, with line connected to carburetor, no gas flows from carburetor. Unless the carb is uphill from shut off, I see no reason gas will not flow from line at carb. It may very well not flow from carb if the float needle is stuck.
 
(quoted from post at 21:25:11 05/18/16) juicybusa2- Why scratch your answer? That's exactly what I thought.

I figure if the float needle valve is stuck closed, it is not opening and blocking the fuel to flow into the carb bowl.
Click to expand...

Reread the op please. With the line disconnected at the carb, there is no gas flow from the line.
 
hot wrench,

Sorry, but I've misread your post. Hooking up a fuel line to a flowing bowl of gas and not getting flow at the end of the tube is a puzzle.

Is the line made of segments of rubber? Perhaps the inner part of the hose has swollen shut?

Let us know the final outcome, please,

D.
 
(quoted from post at 21:28:22 05/18/16) [b:3e6382bf54]Your saying, that with the line disconnected at the carburetor, no gas flows from the line?[/b:3e6382bf54] Or, with line connected to carburetor, no gas flows from carburetor. Unless the carb is uphill from shut off, I see no reason gas will not flow from line at carb. It may very well not flow from carb if the float needle is stuck.
Click to expand...

Yes to the bolded.

The tractor is sitting with the front end uphill therefore the gas is forced to the back of the tank where the outlet is. There is plenty of gas in the tank.

When I remove the gas line from the sediment bowl outlet and open the valve, gas will flow.

When I reconnect the line and it is not connected to the carb, I have no gas flow at the carb end of the line.

This line has been blown through several times and has been replaced with a temporary line with the same results.

This problem has nothing to do with the carborator, there is no fuel getting to the carborator.
 
Fuel does good all the way to the carb, as I understand it because you've disconnected the carb and fuel flows good up to that point? You have a carb issue, blockage. Think of it as you can walk or run all day long until you get to that brick wall (carburetor), so you need to fix, get through the brick wall (carburetor) that is blocking you. Could be a lot of things like a piece of dirt blocking a passage or venturi, fuel float stuck so the needle valve won't open. Lots of things. Again, fuel flows fine all the way up to the disconnected carb, but as soon as you connect the carb, your problem is in the carb.

Good luck.

Mark
 
What happens if you put your mouth over the fill hole and blow,of use compressed air and close the hole off the best you can with your hand?
 
(quoted from post at 21:41:10 05/18/16) Fuel does good all the way to the carb, as I understand it because you've disconnected the carb and fuel flows good up to that point? You have a carb issue, blockage. Think of it as you can walk or run all day long until you get to that brick wall (carburetor), so you need to fix, get through the brick wall (carburetor) that is blocking you. Could be a lot of things like a piece of dirt blocking a passage or venturi, fuel float stuck so the needle valve won't open. Lots of things. Again, fuel flows fine all the way up to the disconnected carb, but as soon as you connect the carb, your problem is in the carb.

Good luck.

Mark
Click to expand...

Uh uh, no fuel is getting to the carb.
 
Better get your aluminum foil hat on, sounds like a UFO might be hovering overhead!

All I can think of is possibly the fuel line is a little long, has some air traps in it.

Might try holding a rag in the filler, give it a gentle shot of air, see if it will start flowing.

I have a John Deere push mower with a Kawasaki motor. If it runs out of gas I have to pull the hose off the carb, hold it lower and it will start flowing. It will keep flowing as long as there is fuel in the tank and no air in the line.

I have no explanation for why, nor why yours is doing what it's doing!
 
(quoted from post at 21:36:10 05/18/16) in line fuel filter is not free flow type
Click to expand...

Whoops, apologies due here. Found a small inline filter buried under the battery tray. Removed it and it's running like a clock. Tractor is new to me.

Thanks.

I have no idea why it wouldn't get fuel with a temporary line though, maybe a high spot in the line?

Thanks for everyone's input.
 
(quoted from post at 07:02:56 05/19/16) ....My old Fergie isn't getting gas to the carb. I've taken the line off and blown it out several times. I've taken the sediment bowl and shutoff valve unit off and have cleaned both filter screens and have blown it through several times.

I can take the line off of the shutoff valve/sediment bowl and gas flows fine. Reconnect the line and remove it at the carb.....no gas.

I have run a temporary line from the valve to the carb. No gas at the carb....

The filler cap is well vented and I have removed it and tried with the same results.

What's happening here?
Click to expand...

This is just a wild stab in the dark, so go easy on me, but is there an arrow on the sediment bowl to show the direction of the fuel flow? Is it possible you have fuel entering the sediment bowl through the "outlet"?

Maybe it wouldn't make a difference. I dunno. Just something I would look for.

Best of luck. Let us know what it is/was when you figure it out.
 
(quoted from post at 22:26:06 05/18/16)
(quoted from post at 07:02:56 05/19/16) ....My old Fergie isn't getting gas to the carb. I've taken the line off and blown it out several times. I've taken the sediment bowl and shutoff valve unit off and have cleaned both filter screens and have blown it through several times.

I can take the line off of the shutoff valve/sediment bowl and gas flows fine. Reconnect the line and remove it at the carb.....no gas.

I have run a temporary line from the valve to the carb. No gas at the carb....

The filler cap is well vented and I have removed it and tried with the same results.

What's happening here?
Click to expand...

This is just a wild stab in the dark, so go easy on me, but is there an arrow on the sediment bowl to show the direction of the fuel flow? Is it possible you have fuel entering the sediment bowl through the "outlet"?

Maybe it wouldn't make a difference. I dunno. Just something I would look for.

Best of luck. Let us know what it is/was when you figure it out.
Click to expand...

Done figured it out and have posted the result.
 
I put an inline paper filter on my jubilee .
When the gas got warm it would create a
vapor lock. Had to remove it.
 
Bingo.

Never add an inline filter to a gravity flow system unless the filter is designed for such gravity flow systems. Very few are suitable.

Dean
 
Im going out on a very long limb here, but does the fuel line go uphill anywhere or is it all straight and downhill or flat to the carb. As long as the fuel line and carb are below the tank it shouldn't matter if it goes uphill on its way to the carb but who knows.
 
hot wrench- "Does anyone here actually read the whole thread before responding? "

Others are just trying to help you. I'll tell you what, you won't ever have to worry about
reading any of my responses to you, because ...there will never be another one!
 
(quoted from post at 00:32:17 05/19/16) hot wrench- "Does anyone here actually read the whole thread before responding? "

Others are just trying to help you. I'll tell you what, you won't ever have to worry about
reading any of my responses to you, because ...there will never be another one!
Click to expand...

Well if they are trying to help they should read thoroughly and understand what is going on exactly before offereing a possible fix. It just make for confusion for anyone wanting to learn.

There were many replies on this topic that were obvious that the poster hadn't read or comprehended the original post.

As for you responding to me in the future, oh well.

Thanks to those who did understand the situation.
 
You really threw most off track with your original post of a separate line and no flow
to carb. That is why I wanted to be clear that you had not connected the line to the
carb. I did read it. There was no reasonable reason for fuel to not flow with your
description of the situation.
 
Sounds like something is in the tank covering up the outlet hole. Or maybe there is no fuel in it. Not trying to be a smart butt but I've
been called out on many service calls to get a vehicle started and they say they have gas and they don't. I know you say there is fuel
flowing but make sure it's a good flow and not a trickle.
 
My TO35 would run fine for 30 min. After that I would not have gas flow. I could take off the gas line and blow back to the tank and it would run another 5 min and quit. This went on for a year. The heat from the engine would vapor lock the gas in the gas bowl and block the flow. I took the bowl off and replaced it with a ball valve and a fuel filter. Never stopped again.
 
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