SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | 4-cylinder diesel engine (1.9 l engine) | Fuel preparation system Diesel injection | Servicing diesel direct injection system | Removing and installing unit injector

Continuation for all unit injectors

–	If necessary, adjust the unit injector and tighten the securing bolt as follows:

–	Tighten securing bolt to 12 Nm and turn 270° (3/4 turn) further (turning further can be done in several stages).

–	Fit rocker arm shaft and tighten new securing bolts as follows:

–	First tighten inner bolts -2- then outer bolts -1- by hand. Then using same sequence, tighten to 20 Nm and turn 90° (1/4 turn) further. Now turn the adjuster screw into rocker arm until significant resistance can be felt (unit injector is at limit stop).

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