GTI L4-2.0L Turbo (CBFA) (2008)
Piston: Service and Repair
Piston and Connecting Rod Assembly Overview
1 - Connecting Rod Bolt
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M8: 30 Nm plus an additional 90° turn
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M9: 45 Nm plus an additional 90° turn
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Replace
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Lubricate threads and contact surface
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Use old bolt to measure radial play
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Do not tighten 90° further when measuring radial play
2 - Connecting Rod Bearing Cap
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Note installation position
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Due to the separation procedure (cracking) of the connecting rod, the cap only fits in one position and only to the corresponding connecting rod.
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Mark affiliation to cylinder - A -
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Installation position: Markings - B - point to belt pulley side
3 - Bearing Shells
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Installed location Bearing Shell Installation Position
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Do not interchange used bearing shells (mark)
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Axial play new: 0.10 to 0.35 mm. Wear limit: 0.40 mm
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Measure radial clearance with Plastigage(R): New: 0.02 to 0.06 mm. Wear limit: 0.09 mm. Do not turn crankshaft when checking radial clearance
4 - Pressure Relief Valve
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27 Nm
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Opening pressure 1.6 to 1.9 bar
5 - Oil Spray Jet
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For piston cooling
6 - Circlip
7 - Piston Pin