B3.9 and B5.9 Series Engines
Fuel Injection Pumps, In-Line (005-012)
Section 5 - Fuel System - Group 05
The Bosch P7100 in-line fuel injection pump has a jump-
over tube to route return fuel and entrapped air from the
pressure relief valve directly to the supply tank.
The Nippondenso EP-9 in-line fuel injection pumps will
require additional venting prior to initial start-up, pump
replacement, or if engine fuel runs out.
Fuel Injection Pump (In-Line Type)
Beginning in 1991, the B Series engine used the Bosch
7100 in-line fuel injection pump on higher horsepower
automotive ratings. In 1994, all automotive 6B Series en-
gines used the Bosch P-7100 in-line fuel injection pump.
B Series industrial ratings and marine (after 1996) engines
use the Bosch "A" in-line fuel injection pumps.
The B Series engine also uses the Nippondenso EP-9 with
RSV governor on 1996 or earlier engines with a 250 and
Refer to the B Series Marine Operation and Maintenance
Manual, Bulletin No. 3810466, for additional information.