23-7 Injectors and Delivery Pipes
Injector, Change
1 Clean round
the injectors (1). Undo the fuel deliv-
ery pipes (2) at the injection pump and the injec-
tors. Lift the fuel delivery pipes away together.
Remove the nut (3) at the top of each injector, use
the nut (4) underneath the fuel return pipe (5) as
a counterhold to avoid kinking the pipe. Lift the
return fuel pipe away.
Unscrew the injectors. Remove the copper seals
under the injectors.
IMPORTANT!
Seal all
openings in the fuel system with protective
caps.
2 Install the new injectors with new copper seals.
Apply sealant part no. 840879 to the two lowest
threads (
1). For tightening torques, refer to Tight-
ening torques page 9.
Install the return fuel pipe, use the nut underneath
the fuel return pipe as a counterhold to avoid
kinking the pipe.
Install the fuel delivery pipes. Check that they do
not come out of alignment, and tighten the nuts.
For tightening torque, refer to Tightening tor-
ques page 9.
3 Start the engine and check for leaks.
23-7 Injectors and Delivery Pipes
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