882- possible bad fuel pump

[IHCubCadet147]

I was mowing my neighbors yard with my 882 last night. It ran good for about 45 minutes, then it started sputtering. I turned the mower deck off and it recovered. I mowed for about another minute, and it did it again, and stalled this time. It started back up, and I quickly headed for home. It made it about 1/4 mile home with no more issues, and I got the old reliable 126 to go finish. I don’t really know much about diesels, but my first guess would be the fuel pump. And no, it’s not out of fuel, it has a full tank. You could always hear the fuel pump when the key is on, but when I first went to start the tractor, I noticed it seemed quieter than normal, but didn’t think anything of it at the time. Now I’m thinking it’s getting weak. I ordered a $20 one off Amazon. Not sure if they are any good, but I’m going to try it before spending almost $200 for an oem one.

Other than the fuel pump, is there anything else I should be looking at? I do have two new fuel filters also that I’m going to put in. I know if you run these out of fuel you have to bleed the lines. Do you also have to do this any time the lines are disconnected? Like I said before, I don’t know much about diesels. This is the first and only one I ever had, and other than maintenance, I haven’t really had to do anything to it yet.

[finsruskw]

How long has it been since you serviced this unit.
Oil and filter change including the fuel filter?
Water & other crap, in the fuel?
Is the fuel in the filter somewhat black?

Have you ever cleaned the tank and inspected the fuel lines and valve bungs?
It not, it would be a good idea to do that.


After all these years the lines get hard as a rock crack & start to deteriorate somewhat internally.

[IHCubCadet147]

Originally Posted by finsruskw

How long has it been since you serviced this unit.
Oil and filter change including the fuel filter?
Water & other crap, in the fuel?
Is the fuel in the filter somewhat black?

Have you ever cleaned the tank and inspected the fuel lines and valve bungs?
It not, it would be a good idea to do that.


After all these years the lines get hard as a rock crack & start to deteriorate somewhat internally.

The oil and filter was last changed about a year ago, I was planning on changing it again soon. I have never done anything with the fuel system yet. I bought the tractor 3 years ago, the PO told me he had the tank cleaned about a year before that. Shining a flashlight in there it looks clean. I assume they changed the filters too. I have new ones so I will put them on. The lines don’t look very old, but it wouldn’t hurt to put new ones on. I have had issues on other things with them disintegrating inside. I will also check for water, but I doubt that’s it.

[CubDieselFan]

I had the same thing happen with my 1572 when I first got it. Any kind of a load and it would fall on its face. Changed both filters and it was all good.

[Oak]

Those tank screens can get clogged up but if your fuel pump isn't running then that's your problem. I've used those cheap China pumps from Scamazon too and so far they seemed to work okay as long as it's rated for diesel fuel.

Here is the free manual from this site on your engine. It explains how to purge the filters and pump on page 1-93.

https://www.onlycubcadets.net/forum/...ead.php?t=4660

Here's a list of the filters I use on the Kubota D600 & D640's.

I use Rotella T 15W-40 oil and Wix filters part #
Air - 46270
Pre fuel - 33972
Fuel - 33389
Engine Oil - 51064
Hydro - 51410

[Oak]

Some of the early 882 & 782D's had the original fuel pump from Kubota left on them. It is not needed and can be bypassed if your machine has it.

You may need to crack the injector lines at the top of the engine one at a time to bleed any air out of the high pressure pump if any got in there. I wouldn't do that unless you have to.

Here is a pic of one of my 882's with the original Kubota fuel pump with the blue arrow pointing to it. The yellow arrow is where you can bleed the fuel lines and filter from.

DSC03017 - Copy.jpg

[IHCubCadet147]

Originally Posted by CubDieselFan

I had the same thing happen with my 1572 when I first got it. Any kind of a load and it would fall on its face. Changed both filters and it was all good.

I changed both of them yesterday. I wish it would stop raining so I could go try it.

Originally Posted by Oak

Those tank screens can get clogged up but if your fuel pump isn't running then that's your problem. I've used those cheap China pumps from Scamazon too and so far they seemed to work okay as long as it's rated for diesel fuel.

Here is the free manual from this site on your engine. It explains how to purge the filters and pump on page 1-93.

https://www.onlycubcadets.net/forum/...ead.php?t=4660

Here's a list of the filters I use on the Kubota D600 & D640's.

I use Rotella T 15W-40 oil and Wix filters part #
Air - 46270
Pre fuel - 33972
Fuel - 33389
Engine Oil - 51064
Hydro - 51410

Thanks for the link and the filter numbers. My new pump is supposed to be here Tuesday. If that doesn’t fix it I’ll check the screen in the tank next.

Originally Posted by Oak

Some of the early 882 & 782D's had the original fuel pump from Kubota left on them. It is not needed and can be bypassed if your machine has it.

You may need to crack the injector lines at the top of the engine one at a time to bleed any air out of the high pressure pump if any got in there. I wouldn't do that unless you have to.

Here is a pic of one of my 882's with the original Kubota fuel pump with the blue arrow pointing to it. The yellow arrow is where you can bleed the fuel lines and filter from.

Attachment 115319

Mine only has the electric pump.

[IHCubCadet147]

My fuel pump came in yesterday. I put it on and mowed for about 45 minutes then it started bogging down again. It ran great until then. I guess that wasn’t the problem. I’m going to try cleaning the fuel tank next.

That was about the same amount of time I used it before it started having this issue the first time. I also tried it out Sunday after changing the filters, and it ran fine for about a half hour before it started bogging down. I’m kind of wondering now if it could be something heat related?

[CubDieselFan]

Can you take a video of it bogging down?

[ironman]

?clogged fuel cap air vent?