Fuel Injection Pumps, In-Line (005-012)
B3.9 and B5.9 Series Engines
Section 5 - Fuel System - Group 05
When using solvents, acids, or alkaline materials for
cleaning, follow the manufacturer's recommendations
for use. Wear goggles and protective clothing to avoid
Wear appropriate eye and face protection when using
compressed air. Flying debris and dirt can cause bodily
The fuel injection pump drive gear inside diameter and
the shaft outside diameter must be clean and dry before
installing the gear. Failure to do so can result in slipped
QD Contact Cleaner, Part No. 3824510
NOTE: Before installing the fuel pump drive gear, clean the
injection pump shaft and gear tapers with residue-free
cleaner, Part No. 3824510, by spraying into the gap be-
tween the shaft and the gear. Dry with compressed air.
NOTE: The in-line fuel injection pump driveshaft has a
provision for a Woodruff key: however, it is not required.
Timing mark alignment is not required for the in-line drive
NOTE: Make sure the engine has cylinder No. 1 at TDC.
Make sure the o-ring seals for the fill orifice (A) and pilot (B)
are correctly installed and are not damaged.
Install new pilot o-ring.
Slide the pump shaft through the drive gear and position
the pump flange onto the mounting studs.
Push the pump forward until the mounting flange and o-ring
are properly fitted into the gear housing bore.