crank no start b3300su

[azdbacks987]

I am trying to get my b3300su to start after it had sat for a while. it cranks fine put a new battery in it because I thought it needed it.

then I replaced the fuel filter because it looked bad, no change.

put fresh fuel in it, no change.

I pulled the fuel line off after the mechanical fuel pump and saw that it was pulsing fuel like I have read its supposed to but its a pathetic amount.

does anyone know how much fuel should be pumping out if the pump and if they go bad from just sitting a few months randomly?

thanks in advance

 

[Roadworthy]

I'd start by breaking the fuel line as close to the tank as possible. Sometimes crud (algae, etc.) will build up there and not allow adequate fuel to flow. If you establish a good flow from the tank make sure you have good flow after the filter. A defective filter or an improper installation is not unheard of.

 

[Dave_eng]

I agree with Roadworthy.
Do you have an Operators' Manual.
Have you read and followed the fuel system bleeding instructions as if you ran out of fuel?
Dave

 

[azdbacks987]

in the book that came with the tractor it just says fill the fuel tank and then start the motor and nothing else.

when I disconnect the fuel line from the pump which is down stream of the filter I am getting great flow from gravity into my bucket. but when I disconnect the line after the pump and then crack the motor it barley dribbles out.

it just seems crazy because this tractor has been in the family for 10+ years now and sits for long periods when it's not needed all the time and usually fires right up like you ran it the day before until last week.

it sounds like I need to replace the lifter pump? hopefully the local shop here stocks them

 

[JerryMT]

in the book that came with the tractor it just says fill the fuel tank and then start the motor and nothing else.

when I disconnect the fuel line from the pump which is down stream of the filter I am getting great flow from gravity into my bucket. but when I disconnect the line after the pump and then crack the motor it barley dribbles out.

it just seems crazy because this tractor has been in the family for 10+ years now and sits for long periods when it's not needed all the time and usually fires right up like you ran it the day before until last week.

it sounds like I need to replace the lifter pump? hopefully the local shop here stocks them

Does your pump have an internal screen? Is there a screw on top of a dome like piece? Unscrew and remove that and check for a screen that's clogged. Otherwise I'd replace the lift pump.

 

[North Idaho Wolfman]

It does sound like the lift pump has taken a time out.
Replace it with a new one, you will need to crack the injector lines and bleed all the air out of the system.

Fill the fuel tank full after use and before storage.
And Treat the fuel with an algicide since it's sitting along time.

 

[Mark_BX25D]

Rubber parts (seals, diaphragms) don't like sitting.

 

[Henro]

It does sound like the lift pump has taken a time out.
Replace it with a new one, you will need to crack the injector lines and bleed all the air out of the system.

Fill the fuel tank full after use and before storage.
And Treat the fuel with an algicide since it's sitting along time.

Just a question because I do not know the answer.

The B3300 is a relatively new tractor. Looks like first produced in 2010.

I know with my BX2200 if I run out of fuel (bought it in 2003) it has a self bleeding set up, and I just add fuel, let the lift pump run for maybe 20 seconds, and it starts up fine. Only ran out of fuel a couple times in almost 20 years, but a guy I worked with said his experience was the same.

I also ran out of fuel once on the B2910, because I forgot I left the tractor idling, and when my wife asked what the sound was, I said that is someone up on the hill there using their tractor. Found the key on and the tractor not running the next day. BUT all I did was add fuel and start the tractor. Maybe I got lucky?

Anyway, just wondering if the B3300 is like older tractors, and needs air bled from the lines manually. My B2910 is roughly 10 years older, and apparently did not, but I might have got lucky.

The BX is also about ten years older, and the manual says nothing about bleeding air out if you run out of fuel, just says run the lift pump a bit and then start the tractor. My words, but that is what I remember.

Perhaps I need to start another thread questioning how the self bleed systems work on tractors that have them...and what Kubota tractors have self bleeding fuel systems...

 

[North Idaho Wolfman]

Just a question because I do not know the answer.

The B3300 is a relatively new tractor. Looks like first produced in 2010.

I know with my BX2200 if I run out of fuel (bought it in 2003) it has a self bleeding set up, and I just add fuel, let the lift pump run for maybe 20 seconds, and it starts up fine. Only ran out of fuel a couple times in almost 20 years, but a guy I worked with said his experience was the same.

I also ran out of fuel once on the B2910, because I forgot I left the tractor idling, and when my wife asked what the sound was, I said that is someone up on the hill there using their tractor. Found the key on and the tractor not running the next day. BUT all I did was add fuel and start the tractor. Maybe I got lucky?

Anyway, just wondering if the B3300 is like older tractors, and needs air bled from the lines manually. My B2910 is roughly 10 years older, and apparently did not, but I might have got lucky.

The BX is also about ten years older, and the manual says nothing about bleeding air out if you run out of fuel, just says run the lift pump a bit and then start the tractor. My words, but that is what I remember.

Perhaps I need to start another thread questioning how the self bleed systems work on tractors that have them...and what Kubota tractors have self bleeding fuel systems...

Yes most newer tractors don't normally need to have the injector lines bled as they normally self bleed.
But in some rare cases they will vapor lock the injectors and refuse to start.