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2003 LB75.5 new holland backhoe injector pump.

mattman

New Member
Joined
May 5, 2024
Messages
3
Location
Northpole
Hi everyone,
I am looking for a little help and some answers. On my 2003 LB75b backhoe the injection pumps leaking fuel at the front between the metal pump housing and plastic, not the the fuel lines that go to each individual injector. Is there a oring or something I can replace or do I need to replace the whole injection pump?Screenshot_20240506_185016_Gallery.jpg
 

thepumpguysc

Senior Member
Joined
Mar 18, 2010
Messages
7,601
Location
Sunny South Carolina
Occupation
Master Inj.Pump rebuilder
there IS an oring.. but it can’t be replaced on the machine..
otherwise, when u take the 4 screws out, EVERYTHING come tumbling out.!!
The pump has to come off and inverted to get to the oring..
It’s not a job for the inexperienced.!! There’s about 4 different things that have to be lined up inorder to get it back together..
I’m doing one RIGHT NOW for the same thing..
 

mattman

New Member
Joined
May 5, 2024
Messages
3
Location
Northpole
there IS an oring.. but it can’t be replaced on the machine..
otherwise, when u take the 4 screws out, EVERYTHING come tumbling out.!!
The pump has to come off and inverted to get to the oring..
It’s not a job for the inexperienced.!! There’s about 4 different things that have to be lined up inorder to get it back together..
I’m doing one RIGHT NOW for the same thing..
Thanks for the information, I really appreciate it. Do you work or own a shop that rebuilds or sells injector pumps? if so are you anywhere close to south west Virgina?
 

mattman

New Member
Joined
May 5, 2024
Messages
3
Location
Northpole
Thanks for the information, I really appreciate it. Do you work or own a shop that rebuilds or sells injector pumps? if so are you anywhere close to south west Virgina?
there IS an oring.. but it can’t be replaced on the machine..
otherwise, when u take the 4 screws out, EVERYTHING come tumbling out.!!
The pump has to come off and inverted to get to the oring..
It’s not a job for the inexperienced.!! There’s about 4 different things that have to be lined up inorder to get it back together..
I’m doing one RIGHT NOW for the same thing..
Here is my email address and phone number can you send me your contact info or call me so I can talk to you about rebuilding my pump? 410 570 2255 mattman.1366@gmail.com
 
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