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) tighten to specified torque using a torque wrench.
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) to specified torque using a torque wrench.
a) For single-wall high-pressure fuel system
Name
Size
Type
Lubricant
Value/Standard
Union nut
M20
Tightening torque
(Engine oil)
37 Nm +3 Nm
b) For jacketed high-pressure fuel system
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) to specified torque using a torque wrench.
Name
Size
Type
Lubricant
Value/Standard
Union nut
M16
Tightening torque
(Engine oil)
37 Nm +3 Nm
Final steps
1.
Clean mating faces on cylinder head and charge-air manifold.
2.
Check gaskets for damage and replace them, if required.
3.
Coat gaskets with assembly compound and place onto cylinder head.
4.
Install leak-off-fuel lines.
5.
Install mount of exhaust gas recirculation cooler (16 V only).
6.
Install engine governor (→ Page 117).
7.
Open fuel supply line.
8.
Vent fuel system (→ Page 60).
MS150117/01E 2014-10
| Task Description | 59
TIM-ID: 0000057133 - 001
