A3 L4-2.0L Turbo (BPY) (2006)
‹› Due to the separation procedure (cracking) of the connecting rod, the cap only fits in one position and only to the corresponding connecting
rod.
‹› Affiliation to cylinder mark - B -
‹› Installation position: Markings - A - point to belt pulley side
5
Bearing shells
‹› Upper bearing shell with oil hole for piston pin lubrication
‹› Installed location => [ Installed position of bearing shell ]
‹› Do not interchange used bearing shells (mark)
‹› Axial play new: 0.10 to 0.30 mm Wear limit: 0.40 mm
‹› Measure radial clearance with Plastigage: New: 0.02 to 0.06 mm Wear limit: 0.09 mm. Do not turn crankshaft when checking radial clearance
6
Connecting rod
‹› Only replace as set
‹› Affiliation to cylinder mark - B -
‹› Installation position: Markings - A - point to belt pulley side
‹› With oil hole for piston pin lubrication
7
Circlip
8
Piston pin
‹› If difficult to move, heat piston to approximately 60 °C
‹› Removing and installing using a drift (VW 222 A )
9
Piston
‹› Checking => [ Pistons, Checking ] See: Testing and Inspection
‹› Mark installed position and cylinder allocation
‹› Arrow on piston face points toward belt pulley side
‹› Install with piston ring compressor
‹› Piston and cylinder dimensions => [ Piston and Cylinder Dimensions ] See: Specifications
‹› Cylinder bore, checking => [ Cylinder Bore, Checking ] See: Testing and Inspection
10
Piston rings
‹› Offset gaps by 120°
‹› Use piston ring pliers for removal and installation
‹› "TOP" mark must face up toward piston crown
‹› Checking ring gap => [ Piston Ring Gap, Checking ] See: Piston Ring/Testing and Inspection/Piston Ring Gap, Checking
‹› Check piston ring groove clearance => [ Piston Ring Groove Clearance, Checking ] See: Piston Ring/Testing and Inspection/Piston Ring
Groove Clearance, Checking
Installed position of bearing shell