B1750 injector pump leak

parrothead600

New member

Equipment
B1750
May 17, 2025
2
0
1
Big Rapids, Mi
Hello everybody. I am the proud new owner of a B1750. I seem to have a fuel leak that appears to be coming from the top of the injector pump. There is a plate the holds the injector lines and the leak seems to be between that plate and the pump body. Is this a common problem on these machines? Is it going to be as simple as replacing the gasket and bleeding the injector lines?
Thanks in advance.
 

parrothead600

New member

Equipment
B1750
May 17, 2025
2
0
1
Big Rapids, Mi
It appeared that the leak was from reference #020 in the first picture. I looked up the parts breakdown (the same pictures that you provided) and I can see that part is a shim (.020" .030 & .030") .
Before I started working the tractor today, I cleaned the area and ran the engine at 1000rpm for a few minutes. Didn't see any leaks. After working it for a few hours, I do have fuel on top of the pump. It may also be coming from the fuel inlet line from the lift pump. I'll have to give it a complete degreasing and look closer.
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
33,798
9,001
113
Sandpoint, ID
Yea it's impossible to have fuel leaking at the shims.

Clean it up with Brake parts cleaner and dust with baby powder to find the leak source.