No one mentioned the Timing?
If you plan to put the Injection Pump back on; befrore the Fuel Injection Pump is removed line the Engine Crank Damper degrees to 24 degrees before Top Dead Center on the Compression Stroke.
It is easier to get at the back bracket under the Fuel Injection Pump by disconnecting at least one of the Oil Cooler Lines.
The Factory Service Manaual calls for removing the Oil Filter Housing.
This is what I did but I modified the Bracket when I installed it and it still tool a long time to get it back in.
Fuel Injection Pump Removal with the Oil Filter still on 617.952
Fuel Injection Pump Removal with the Oil Filter still on 617.952
DIY Repair Links
http://www.peachparts.com/shopforum/diy-links-parts-category/
http://www.peachparts.com/Wikka/DoItYourSelf