Fuel Pump Timing (005-037)
B3.9 and B5.9 Series Engines
Section 5 - Fuel System - Group 05
The flange of a replacement pump must be marked to align
with the mark on the gear housing after installation.
During production, after the locked pump is fitted to the
engine with cylinder No. 1 at top dead center (TDC), a mark
is stamped on the gear housing and the pump flange.
Thereafter, when these marks are aligned the pump is
correctly timed to the engine.
NOTE: The marks on the gear housing and the pump
flange are unique to each engine.
Bosch Timing Tool (VE pump), Part No. 3377259
A special indicator can be used to measure the position of
the Bosch VE fuel injection pump plunger to check pump
Stanadyne DB4 Fuel Injection Pump Timing
Clean all debris from around the fuel injection pump timing
Remove the fuel injection pump timing cover.