B3.9 and B5.9 Series Engines
Section 6 - Injectors and Fuel Lines - Group 06
Early model injectors (pre-1991) have a 9-mm injector
tip that can not be used in engines built in 1991 or later
as these engines use a 7-mm injector tip.
Seven mm injectors can be used in early model (9-mm)
injector holes provided the special adapter sleeve is in-
stalled onto the 7-mm injector tip.
Anti-seize Compound, Part No. 3824879
Apply a coat of anti-seize compound, Part No. 3824879, to
the threads of the injector hold-down nut and between the
top of the nut and the injector body.
24-mm Deep Well Socket
NOTE: Align the injector's protrusion with the notch in the
NOTE: The present Bosch injector has an o-ring located
above the hold down nut. After tightening the injector, be
sure to push the o-ring into the groove.