TTS Quattro Roadster L4-2.0L Turbo (CDMA) (2009)
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‹› Replace bearing shells that have worn down to the nickel layer
4
Connecting Rod
‹› With oil bore for piston pin lubrication
‹› Only replace as set
‹› Mark allocation to cylinder with paint - B -
‹› Installation position: Markings - A - face the pulley side
‹› Measuring axial play, refer to => [ Connecting Rod, Measuring Axial Clearance ] See: Testing and Inspection/Connecting Rod, Measuring
Axial Clearance
‹› Radial clearance, measuring, refer to => [ Connecting Rod, Measuring Radial Clearance ] See: Connecting Rod/Testing and
Inspection/Connecting Rod, Measuring Radial Clearance
5
Circlip
‹› Replace
6
Piston Pin
‹› Heat piston to 60° C if it is difficult to move.
‹› Removing and installing using a drift (VW 222 A )
7
Piston
‹› Checking, refer to => [ Pistons, Checking ] See: Testing and Inspection
‹› Mark installed location to connecting rod and affiliation to cylinder
‹› Installation position: Arrow on the piston face points toward the belt pulley side
‹› Install with piston ring compressor
‹› Cylinder bore, checking, refer to => [ Cylinder Bore, Checking ] See: Testing and Inspection/Cylinder Bore, Checking
‹› Piston and cylinder dimensions, refer to => [ Piston and Cylinder Dimensions ] See: Specifications
8
Piston Rings
‹› Offset gaps by 120°
‹› Use piston ring pliers for removal and installation
‹› "TOP" faces toward piston crown
‹› Checking ring gap, refer to => [ Piston Ring Gap, Checking ] See: Piston Ring/Testing and Inspection/Piston Ring Gap, Checking
‹› Check piston ring groove clearance, refer to => [ Ring to Groove Clearance, Checking ] See: Piston Ring/Testing and Inspection/Ring to
Groove Clearance, Checking
Bearing Shell Installation Position in Connecting Rods