Volkswagen CJDA Workshop Manual page 388

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Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
Check catches
Caution
● Carefully pull fuel return lines upwards vertically when
disconnecting, as the 4 catches -arrow- can fracture.
● After disconnecting, check the 4 catches -arrow- to see
whether they are fractured or have broken off.
● Always replace damaged fuel return lines.
● A damaged fuel return line that becomes loose when en-
gine is running causes damage to injection valve (piezo
injector). The injection valve (piezo injector) must then
be replaced.
Caution
When releasing high-pressure line, counterhold high-pres-
sure connection using an open-ended spanner. Leaks oc-
cur if high-pressure connection is released.
– Unscrew union nuts of relevant high-pressure line -1 to 4-,
and remove corresponding high-pressure line.
– Unscrew securing bolts for cover
injectors to be removed.
– Slightly lift cover and turn it 90° to have access to injector
securing nuts.
Caution
When removing securing nuts from injector there is a risk
that the relevant nut will fall into the cylinder head. Proceed
very carefully to prevent unnecessary dismantling or fur-
ther damage.
– Unscrew securing nuts from respective injector.
– Apply puller -T10055- with adapter -T10055/1- as shown in
illustration and pull injector out upwards by tapping gently.
– After removal, lay injectors on a clean cloth.
372 Repair Group 23 - Mixture preparation - injection
⇒ I tem 16 on page 364
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