JD400 (circa 1975) Fuel Pump Leak

[NHEngineer]

Greetings;

This has been also posted on other tractor forums.

I just purchased an old and well used JD400 loader/backhoe. Lots of things to fix but I'll tackle one at a time.

Fuel pump leaks almost as much fuel as the engine burns (it seems anyway). Got to wait for the pressure washer before I can tell where on the pump it's actually coming from but, for now, I'm hoping someone(s) out there can give me an idea if this is a common issue and what a recommended fix may be.

I'll send photos once we get things cleaned up if there is any interest.

 

[loggin]

Greetings;

This has been also posted on other tractor forums.

I just purchased an old and well used JD400 loader/backhoe. Lots of things to fix but I'll tackle one at a time.

Fuel pump leaks almost as much fuel as the engine burns (it seems anyway). Got to wait for the pressure washer before I can tell where on the pump it's actually coming from but, for now, I'm hoping someone(s) out there can give me an idea if this is a common issue and what a recommended fix may be.

I'll send photos once we get things cleaned up if there is any interest.

Photos always help!!

 

[thepumpguysc]

I’d be happy to help..
The 400 has 2 different injection pumps..
A “JDB” pump or a “C” pump.. or u could b talking about the supply pump.??
If u can clarify, we can get started..
Or if u want, u can contact me directly at my screen name at aol dot com..