Leaking Injection pump BX2200 (2001)

[martin_montreal]

Leaking diesel fuel from under injection line... before I figure out how to remove the pump and bring it to a specialist, should I go buy a special bit & pull off the flange to see if I can somehow check there & stop the leak? I did tighten the injector but it didn't do much if anything... could one winter (of snow-blowing say 40 x (2 to 4 hours each) using #2 heating oil fuel (filtered) have caused this? I change both fuel filters once or twice a year and changed them right after that winter. - video upload failed here so it can be viewed at: http://youtu.be/KRwc4kjQR78

 

[doxford jim]

Martin

No, your fuel injection pump is made to deliver the high pressures needed for the fuel injectors to open under pressure. It is more likely that the leak is from a crush washer or copper washer of some sort. It is also possible that there might be a crack somewhere.
What you should do is get the make, model and serial number off of the fuel injection pump - as much information as possible. Then "google" this information to see if you can get a manual for this pump (with details of construction and parts etc.). If you can find such a document you should be able to determine what the problem is by studying the drawings and determine what needs changing. Then buy the parts and replace the old parts.

You don't say how much of a leak it has. If it is just a few drops now and then, I wouldn't worry too much - just keep a good eye on it. Chances are you can fix it yourself if you know how - don't have to go to a specialist. Get the manual and go from there.

HTH

 

[martin_montreal]

Hi Jim,
Thanks ever so much for your quick & thoughtful reply! I saw it come in on my phone so used it as an excuse to take a break and return to my warm office / left the garage where I am completing the final winter prep to turn autumn tractor into winter machine... this would be the last fix and it's definitely the most challenging of the bunch.

"likely that the leak is from a crush washer or copper washer of some sort."
- yes that was my first guess, so I replaced both bleeder bolt crush washers but per the video, it seems to be under the flange closest to the firewall...

"It is also possible that there might be a crack somewhere."
- or as you say, a crack...

"What you should do is get the make, model and serial number off of the fuel injection pump - as much information as possible. Then "google" this information to see if you can get a manual for this pump (with details of construction and parts etc.). If you can find such a document you should be able to determine what the problem is by studying the drawings and determine what needs changing. Then buy the parts and replace the old parts."
- All I could see is the Zexel name which I googled with BX2200 but need to dig further on this... as I did not confirm yet, the model number. Was working off this, from Kubota Object moved

"You don't say how much of a leak it has. If it is just a few drops now and then, I wouldn't worry too much - just keep a good eye on it."
- It Might be affecting power at crunch times - not sure - but Seems to leak more when priming to start than when running; would prefer to diagnose and repair but do not want to spend a fortune, certainly not want to replace and re-tune as I have no diesel tuning experience.


"Chances are you can fix it yourself if you know how - don't have to go to a specialist. Get the manual and go from there."

- I do all the maintenance and upgrade work on this machine and have limited budget and time now that what appears to be the first real snow is falling as we speak...

 

[martin_montreal]

It Might be this ZEXEL 104293-3011 so I am searching a bit more now. Says Zexel but (not surprisingly) Might actually be or cross-references to a Bosch BOSCH 9 410 617 021...

 

[martin_montreal]

It Might be this ZEXEL 104293-3011 so I am searching a bit more now. Says Zexel but (not surprisingly) Might actually be or cross-references to a Bosch BOSCH 9 410 617 021...

Looked Everywhere No Parts Diagrams... Will call company before removing pump... Ideas welcome ;-).

 

[doxford jim]

Martin,
Check out this link

ZEXEL

It is Zexel web site. If not shown, they should be able to provide a pdf of their pump drawings or possibly the actual manual for a small fee ($20 or so). Won't cost you anything to ask. Let us know how you made out please - you could be helping someone else too.

 

[doxford jim]

Just checked your video and it sure looks like a leaking seal (rubber O ring, copper washer or something similar like a doughty washer) to me.
Again, see if you can get some more info from Zexel.
I found this diagram that shows several washers that go under bolts etc. Maybe this will help ya !

Object moved

Hope this helps.

 

[doxford jim]

Tried checking the link and it didn't work.
When the screen come up, click on engine and another screen emerges. Then click on injection pump 120200 and you will then get an exploded view of the injection pump. Hopefully from that you can determine what you need to know. If it was me, I would replace all the gaskets, washers or whatever they are called. At least then you know what is good and what isn't and you will not have spent too much money.

 

[martin_montreal]

Just checked your video and it sure looks like a leaking seal (rubber O ring, copper washer or something similar like a doughty washer) to me.
Again, see if you can get some more info from Zexel.

- I had found the Zexel site but no parts / exploded views so will call the company and / or a distributor on Monday.

I found this diagram that shows several washers that go under bolts etc. Maybe this will help ya !

Object moved

Hope this helps.

- yes thanks - that`s the diagram I posted a link to in the above and had used to order the bleeder copper washers (090) - cannot tell what is under that flange from the Kubota diagram - very good they post that on their site now though! Kubota only sell an assembled pump - not the parts.

 

[martin_montreal]

The link to contact / identify distributors on the Zexel (Bosch) site is broken but an email address shows up for broken links so I sent a note advising of what was going on and what I was looking for... Don't worry. I will post something eventually, IF I figure this out... ;-).