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MF50 3 cylinder diesel leaking fuel pump

C

crawler nut

New User
My MF 50 with 3 cylinder diesel has a leaking fuel pump. Drips bad on startup when cold but stops when it warms up. Runs good with lots of power. Just makes a mess. How big a job is rebuilding these pumps and can I do it myself or do I need to send to a pump shop? Thanks Jim.
 
If your talking about main pump send to a shop. If your talking about lift pump just replace it. Dieseltech will rebuild it. Maybe he will see this.
 
As Minor said, if you mean lift/feed pump on side of block replace it. If you mean injection pump I have the tools and equipment to clean, repair, and calibrate it.
 
Thanks for the replies. This is the injection pump that is leaking. Leaks from top rectangular housing and possibly lower banjo fitting.
How big a job to remove and replace/retime pump. this will have to be completed outdoors. Thanks, Jim.
 
That one is easy, no flywheel timing needed. Remove the front cover/oil fill in front of injection pump. Remove the three gear bolts that thread into pump drive hub. Remove all lines, stop and throttle linkage, three stud nuts and remove pump. There's a pin in the gear that locates in the drive hub notch for timing, and make a note if the pump flange and timing case scribe lines are aligned or not. Usually they are lined up. DO NOT remove the pump stop and throttle levers from pump, they are needed for calibration.
 
Why cant the top cover be removed and the gasket and o-rings be replaced without removing pump from tractor?
 
Quote:
Why cant the top cover be removed and the gasket and o-rings be replaced without removing pump from tractor?

The first and last PUMP (as per picture) my neighbor dismantled...."his last pump "....spring, etc, etc, exploded onto the floor...:(

Bob...
cvphoto57251.jpg
 
I guess it comes down to ones abilities. I've resealed the tops of several pumps without removing them. It can be done.
 
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