HP fuel line and pressure pipe
neck ‒ Replacement
1.
Remove union nuts (1, 3) on HP fuel
line (2).
2.
Remove HP fuel line (2).
3.
Remove nozzle union nut (4).
4.
Pull out pressure pipe neck (5).
5.
Coat sealing ring of new pressure pipe
neck (5) with assembly compound.
6.
Coat sealing cone of pressure pipe neck (5)
with engine oil.
7.
Insert pressure pipe neck (5) into cylinder
head until the sealing ring is in contact with
cylinder head.
8.
Fully press in pressure pipe neck (5) by
hand.
9.
Install union nut (4).
10.
Tighten union nut (4) with torque wrench to the specified tightening torque.
Name
Size
Type
Lubricant
Value/Standard
Union nut
M24
Preload torque
(Engine oil)
15 Nm +5 Nm
Union nut
M24
Tightening torque
50 Nm +5 Nm
11.
Coat mating surface with engine oil between union nut and HP fuel line, end of line and thread on both
sides of the new HP fuel line (1).
12.
Install new HP fuel line (2).
13.
Tighten union nut (1) on HP fuel line (2) with torque wrench to the specified tightening torque.
Name
Size
Type
Lubricant
Value/Standard
Union nut
M20
Tightening torque
(Engine oil)
50 Nm +5 Nm
14.
Tighten union nut (3) on HP fuel line (2) with torque wrench to the specified tightening torque.
Name
Size
Type
Lubricant
Value/Standard
Union nut
M16
Tightening torque
(Engine oil)
37 Nm +3 Nm
56 | Task Description | MS150111/01E 2014-05
TIM-ID: 0000050910 - 001
