A4 Quattro Wagon V6-3.2L (BKH) (2005)
6. Circlip
7. Piston
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Installed position and allocation, piston/cylinder
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Arrow on piston face points toward belt pulley side
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Checking
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Install with piston ring compressor
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Piston and cylinder dimensions Piston and cylinder dimensions
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Cylinder bore, checking
8. Piston rings
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Offset gaps by 120°
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Use piston ring pliers for removal and installation
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TOP marking or inscribed side must point to piston head
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Checking ring gap
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Check piston ring groove clearance
Checking piston ring gap
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Push ring squarely from above down to approximately 15 mm from bottom end of cylinder. To do this use a piston without rings.
Checking ring to groove clearance
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Clean ring groove of piston before checking.