Injector Supply Lines (High Pressure) (006-051)
B3.9 and B5.9 Series Engines
Section 6 - Injectors and Fuel Lines - Group 06
Bleed the air from the high-pressure line at the fitting that
connects the injector. Bleed one line at a time until the
engine runs smoothly.
If the air can not be removed, check the pump and supply
line for suction leaks.
Initial Check (006-051-001)
17 mm, 19 mm
Inspect the lines for cracks, chafes, and leaks. Make sure
that the lines are tightened to proper specification.
17 mm, Fuel Pump Connection
19 mm, Cylinder Head Connection
When using solvents, acids, or alkaline materials for
cleaning, follow the manufacturer's recommendations
for use. Wear goggles and protective clothing to avoid
NOTE: Thoroughly clean the area around the fuel lines
Disconnect the high-pressure fuel lines from the injectors,
and complete the following steps:
Remove the fuel line clamp capscrews from the intake