Kubota fuel injection pump

HNM

Member
Hi everyone, I have a KH 191 Kubota excavator with an S 2800 engine. The injection pump has a plate that the lines going to the injectors hook to. Coming out of the plate is something these lines hook to. These somethings appear to screw into this plate and I have a leak between these somethings and the plate. It appears after looking on line to be part of the injection system so I do not want to just start tearing things apart before I know what they are and what they do and what I can break. I know this is not much to go on but I can not post pictures so any help you can give me is much appreciated. Thank you for your time Neil
 
That leak is not something a layman normally repairs, needs to be done by a pump shop. You can't calibrate the pump once you take it apart.
 
(quoted from post at 10:48:08 04/11/21) Hi everyone, I have a KH 191 Kubota excavator with an S 2800 engine. The injection pump has a plate that the lines going to the injectors hook to. Coming out of the plate is something these lines hook to. These somethings appear to screw into this plate and I have a leak between these somethings and the plate. It appears after looking on line to be part of the injection system so I do not want to just start tearing things apart before I know what they are and what they do and what I can break. I know this is not much to go on but I can not post pictures so any help you can give me is much appreciated. Thank you for your time Neil

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Does this look like what you are dealing with?
 
To wore out yes that is what it looks like and to jm so does the whole injector have to come off or just the plate and with whatever is hooked to it?
 
What he posted is the cassette injection pump ,you need a service manual if are going to try and take it out. Be careful and do not damage any shims that are under it .
 
You probably have a PFR style pump, made by Diesel Kiki/Zexel, or Denso. The plate is the pump body that holds the plungers, delivery valves and roller tappets that ride on the engine cam. Best to have the pump repaired by trained hands, as ANY mistake made gets EXPENSIVE fast. Some leaks can be fixed without pump calibration, depends on how pump is built. Later Denso pumps are the worst..
 

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