Replaced Fuel Filter - Won't Start

[North Idaho Wolfman]

How long does it take to fill the sediment bowl after replacing the filter? How much fuel flows from the output of the sediment bowl (is it a stream of fuel or drops of fuel)?

Each tractor model is a little different, on my L it takes about 3 seconds for it to fill up, and the output flow is a very healthy steady stream (it has a very healthy prostrate).

Week fill times into the filter and/or out of the filter usually point to a problem, most likely a restriction in the tank outlet or possibly the vent in the cap is plugged, not allowing it to let air in to make up for the volume lost.

 

[rridgeback]

Ok the sediment bowl is not filling on it's own and when I fill it manually I only get drops of fuel out of the filter after everything is reconnected. I agree that it sounds like I have an issue getting fuel out of the tank, my only concern is I did not have this issue prior to replacing the fuel filter.

I did disconntect the fuel line connecting the tank and the filter. My tank is approximately 1/2 full and the wife said when I blew 45psi into the fuel line the fuel in the tank gurgled (I made sure it didn't produce a diesel geyser before I asked her to peer into the fuel tank). I'm assuming that since air appeared to make it back into the tank, I should check the vent.

Should I consider bypassing the OEM fuel filter, and sediment bowl with an in line style? At least for troubleshooting purposes?

 

[North Idaho Wolfman]

Give me some exact details like what model tractor and I can give you a lot better answers.

Some models have multiple filters and some have semi closed vent systems so it all depends.

 

[rridgeback]

New to me B1600 and I have less than 6 hours on the tractor. Decided to change oil a few weeks back, this week I replaced the air and fuel filter.

When I opened the sediment bowl i quickly realized the fuel filter had not been changed in quite some time. The original filter had disintegrated, the fuel looked slightly orange in color and the small metal cap from the filter was stuck to the top of the filter housing. I removed the old filter, got everything cleaned up, installed the new filter and started the tractor. Moved it outside and it quit running after a few minutes. Then I remembered I forgot to "prime" the system. When I tried to prime, I noticed the sediment bowl did not fill on its own so I manually added fuel and tried to bleed the system at the injectors. Never did see fuel at the injectors, so I'm back to troubleshooting the fuel filter assembly.

 

[North Idaho Wolfman]

B1600???? (see edit below picture)
Did you mean 6100?
If you did, that's a very simple fuel system, if the tank is not free flowing fuel out of it, then the fuel line is bad or the tank is plugged, full the tank and clean and while you have it out replace the fuel line.
If fuel flows good from tank then pull the filter assembly off and remove the valves and vents from the housing and clean all ports.
Here is what your looking at.

EDIT: Sorry it could be a B1600, that is a Grey/gray market tractor and you can post a few photos of the fuel filter setup and I might be able to find a cross it over and figure what might be in it.

 

[PECKERWOOD]

exactly. What sherman said. You need to bleed all the air out of the fuel system or it will never start. If you do not have a wsm (workshop manual) for your tractor you should get one. Long term it will be one of the best investments you will make for your new baby. While you are at it you should also get a parts manual too. Especially if you are planning to do some of the maintenance work yourself. :d

dan, where is best source for manuals for my l2500

 

[rridgeback]

Wolfman, thanks for your help. The north american equilivent for the B1600 is the B8200 and the fuel system is a simple fuel system much like the system in your diagram.

I was not getting fuel into the sediment bowl, but fuel flows freely from the bottom of the tank so i ran a 5ft section of fuel line from the bottom of the tank direclty to the fuel filter canister. When I did this the gravity flow worked, but I still could not get fuel to the injectors or the bleeder valve on the injection pump.

Can you describe the operation of the lift pump? I am not getting fuel on the output of the lift pump. Does the lift pump pull fuel from the sediment bowl (it doesn't seem like gravity alone would supply fuel to the lift pump)? Can I blow air through the lift pump or would I have to be cranking the engine at the same time?

 

[North Idaho Wolfman]

Can you describe the operation of the lift pump? I am not getting fuel on the output of the lift pump. Does the lift pump pull fuel from the sediment bowl (it doesn't seem like gravity alone would supply fuel to the lift pump)? Can I blow air through the lift pump or would I have to be cranking the engine at the same time?

The lift pump is a low pressure fuel pump, Gravity on a Kubota usually does all the work but the lift pump is there to assist and maintain fuel flow on steep grades or low fuel conditions.
DO NOT blow air into the lift pump, it has a very light diaphragm and you will just blow it out.
Pull the line from the line off the side of the injection pump and crank, it will pulse fuel, it is a very light and small amount that it will move, no where near the amount that an electric pump moves, but that light amount is all you need.
If you have fuel going to the pump and no fuel coming out, then it's plugged, or possibly already a blown diaphragm, but like you stated gravity feeds it most, so it's probably blocked, pull it and pull it apart, it's simple inside.

Oh and greetings from just up the road from you!

 

[slagors]

B1600???? (see edit below picture)
Did you mean 6100?
If you did, that's a very simple fuel system, if the tank is not free flowing fuel out of it, then the fuel line is bad or the tank is plugged, full the tank and clean and while you have it out replace the fuel line.
If fuel flows good from tank then pull the filter assembly off and remove the valves and vents from the housing and clean all ports.
Here is what your looking at.

EDIT: Sorry it could be a B1600, that is a Grey/gray market tractor and you can post a few photos of the fuel filter setup and I might be able to find a cross it over and figure what might be in it.

Hi there, what is the Number 26 on the picture called? is it a fuel tank valve?
cheers, seb