Does anyone know if this leak can be fixed without replacing the injection pump or having to mess with pump timing. It's leaking real slow from the nut/bolt the fuel line attaches to. It's on a Duetz fl4m 2011 engine. I bought the 2011 engine manual but it doesn't have a breakdown of the pump unfortunately. Thanks!
Yes, that can be repaired in place.. I don’t recall if the delivery valve gasket is on the top or the bottom of the delivery valve..?? And there should be an oring on the dv holder too..
You want to clean that are really good before you start. Looks like it's been leaking for quite a while.
I was able to tighten the piece that the injector line attaches to and the leak seemed to slow down. After I did it I got worried that maybe I shouldn't have. I hate working in something I don't have a diagram of and don't fully understand. Do you have a suggestion of somewhere to source the parts from? Or is it something I can take apart then match up o rings to replace? 100% I think it's been leaking for a very long time and just got to the point it was noticeable. The pumps are covered by the air cooling plenum panel.
If u have a fuel shop close by, as in driving time.. U can take the oring and delivery valve gasket with u & tell them it’s from a Bosch A pump.. If u tell’m it’s from a motor pal pump they’re gonna say NO or they’ll have to order it.. If ur gonna do that, screw the holder back down onto the pump.. U don’t have to tighten it.. just finger tight is fine.. & after u get the oring and gasket, torque it to 35 ftlbs.. Good luck
Just to be sure. Remove the injector line then remove this, the delivery valve.
That’s the delivery valve HOLDER. But yes, remove that.. b careful cuz there will b a spring under the dv holder.. u don’t wanna lose it.. Personally I would break loose one of the other steel lines, either the in or the out.. just to relieve the pressure inside the pump.. Have a scribe/pick ready so u can fish the dv gasket out WITHOUT removing the dv.. If u find it impossible to fish it out.. THIS STEP IS VERY IMPORTANT.. cock the dv inorder to break the metal to metal seal BEFORE trying to remove the dv.. If u simply reach in and pull up on the dv, you’ll pull the all important barrel off its seat, and u won’t b able to get it back down. THEN, your boxing it up and sending it to S.C…& we’ll all talk bad about u for not following instructions.. lol If u don’t have any place local, put the oring and gasket in a small baggie and put it in an envelope with a stamp, and send it to me..
Well dang. After reading that I think I might be better off buying the locking pin for the rack and just replacing the pump. The machine makes me a few thousand a day so I don't want any down time. What do you think that idea? @thepumpguysc
It’s only money.. have u priced a pump yet.?? It’s gonna be a hellofa lot more expensive than a 5.00 oring and a 2.00 dv gasket.. If u had the time, u could overnight the oring and gasket to me and I’ll match it up and shoot it back..
Hmm. A pump is $300ish and the locking bolt is $45.
Why not just fix what's leaking? Makes no sense to spend money when it isn't necessary.
It's just an o-ring, easy fix, done it on plenty of those pumps, just don't recall what size o-ring it is.
Last week I paid a Duetz shop to fix the pump and do a timing belt job when I had some down time.