1.9
Checking for injectors sticking open
WARNING
◆
Always read rules for cleanliness and instructions for
working on fuel system
.
◆
Always follow these rules for cleanliness and instruc-
tions before starting work and while working on the
fuel system.
Special tools and workshop equipment required
◆
Hand vacuum pump -VAS 6213-
◆
Make an -adapter- from a return line.
– Clean all connections (e.g. with commercially available cold
cleaning solvent) before removing.
Note
◆
Make sure all parts are clean; no dirt must be allowed to en-
ter the fuel system.
◆
Check all cylinders in turn.
– Dry all components after cleaning.
– Start with cylinder 1.
– With engine switched off, carefully pull return line connec-
tions off injectors. To do this, press both clips downwards
-arrow A- and simultaneously pull release pin upwards
-arrow B-.
– Connect clean, blown-out adapter to injector to be tested.
Industriemotoren - Industrial Engines 2009
▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
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1 Repairing diesel direct injection system
369