Volkswagen CJDA Workshop Manual page 382

3
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
1.7.2 Engine codes CPYA, CPYB, CPYC, CPYD, CPYE
1 - High-pressure line
q 30 Nm
q Between high-pres-
sure accumulator
(fuel rail) and injec-
tors (piezo injec-
tors).
q Install so that com-
ponent is not under
stress.
q Removing and in-
⇒ P age 375
stalling
Note
◆ The high-pressure
line may be reused
after the following
checks:
◆ Check taper seat of
high-pressure line
for deformation and
cracks.
◆ The inside of the
line must not be de-
formed, constricted
or damaged.
◆ Corroded lines
should no longer be
used.
2 - Fuel rail
3 - Seal
q Renew
4 - Fuel pressure regulating valve -N276-, 80 Nm.
q Checking return flow rate
q Checking fuel pressure regulating valve
q Removing and installing
5 - O-ring
q Renew
6 - Injector (piezo injectors)
q Do not interchange!
q When removing and installing an injector, always renew the following components and seals/O-rings:
"copper seal", "O-ring for injector bore", "O-ring for injector return connection", "bolt for clamping plate".
q Removed injectors must always be reinstalled in their original location (on the same cylinder).
q Before reusing "high-pressure line", perform a visual check of taper seats for damage such as trans-
verse scores or corrosion. If the high-pressure line is damaged, it must always be renewed.
Adapting correction values
q Removing and installing
⇒ P age 398
q Checking
366 Repair Group 23 - Mixture preparation - injection
⇒ P age 377
⇒ P age
⇒ P age 377
⇒ P age 368
⇒ P age 370
391.