TM 5-2420-230-24-2
Injector Supply Lines (High Pressure) (006-051)
B3.9 and B5.9 Series Engines
Page 6-34
Section 6 - Injectors and Fuel Lines - Group 06
Remove (006-044-002)
19 mm
Bosch In-Line Pump
Remove the pressure relief valve and sealing washer.
Clean (006-044-006)
WARNING
When using solvents, acids, or alkaline materials for
cleaning, follow the manufacturer's recommendations
for use. Wear goggles and protective clothing to avoid
personal injury.
Thoroughly flush the high-pressure relief valve with clean-
ing solution.
Install (006-044-026)
CAUTION
Do not use the center cap as a vent. This will cause
damage to the overflow valve.
10 mm, 19 mm
Install the high-pressure relief valve assembly in the re-
verse order of removal.
Injector Supply Lines (High Pressure)
(006-051)
General Information
CAUTION
The high-pressure lines must be clamped securely and
routed so they do not contact each other or any other
components.
The high-pressure fuel lines are designed and manufac-
tured to deliver fuel at injection pressure to the injectors.
The high-pressure pulses will cause the lines to expand
and contract during the injection cycle.
Shown here are the high-pressure fuel lines for the
distributor-type injection pump.
L-1004