Disassembly and Assembly
Fuel Injection Lines
Install Fuel Injection Lines 1252-012
3304 Engine Shown
Remove the protection covers from the fuel line
connections. Put the injection fuel lines in position, and
install the nuts until they are finger tight.
Install the spacers and bolts (2) that hold the fuel
injection lines to the cylinder head.
Use tool (A) and tighten nuts (1) to a torque of 40 + 7
Nm (30 + 5 Ib. ft.).
Do not let the tops of the fuel nozzles turn when the
fuel lines are tightened. If the tops of the nozzles
turn, the nozzles will be damaged.
Use tool (A), a wrench, and a torque wrench to
tighten nuts (3). Tighten nuts (3) to a torque of 40 + 7
Nm (30 + 5 Ib.ft.).
Remove (bleed) the air from the fuel lines. See
Priming The Fuel System in the Maintenance Guide.
Fuel Injection Nozzles
Remove Fuel Injection Nozzles
Slide Hammer Puller
*Part of 6V7020 Nozzle Puller Group.
remove fuel injection lines
NOTE: The illustrations which follow are of a 3306
Remove bolt (1) and clamp (2) from the fuel injection
nozzles to be removed.
Install tool (A) with the inside lip of the puller on the
lower stepped diameter of the nozzle and the tip of the
button in the threaded hole for bolt (1).
Do not exceed a torque of 17 Nm (150 Ib. in.) on the
screw in tooling (A) during removal of the nozzle.
Added force can cause the stem of
the nozzle to bend or break off.
Tighten the screw in tooling (A) to a maximum torque
of 17 Nm (150 Ib. in.) to remove fuel injection nozzle (3).