Jetta L4-1.9L DSL Turbo (BEW) (2004)
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Check dimension "a" from outer edge of cylinder head to rounded edge of unit injector with a vernier gauge (measuring range- min. 400 mm).
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If necessary realign unit injector.
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Tighten securing bolts as follows:
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Tighten bolts to 12 Nm and turn 270° 3/4 further (turning further can be done in several stages).
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Install rocker arm shaft and tighten new securing bolts as follows.
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First tighten inner bolts - 2 - and then outer bolts - 1 - hand tight. Then, using same sequence, tighten to 20 Nm and turn 90° (1/4) further.
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Mount dial gauge onto adjustment screw of unit injector as shown.
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Turn crankshaft in engine direction of rotation until roller of rocker arm is positioned on peak of drive cam lobe, roller side - arrow A - is
positioned at highest point and dial gauge arrow B - positioned at lowest point.
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Remove dial gauge.
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Turn adjustment screw inward into rocker arm until a firm resistance is felt (unit injector positioned at limit stop).
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Turn adjustment screw approximately 180° back off limit stop.
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Hold adjustment screw in this position and tighten lock nut to 30 Nm.
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Connect unit injector connector and install cylinder head cover.