Audi Workshop Service and Repair Manuals

Note:

• ◆ Renew all gaskets and seals.

• Thrust washers
• ◆ Measuring axial clearance of crankshaft
• ◆ Thrust washer only fitted on 4th crankshaft bearing
• Special bolt (double hexagon)
• ◆ Renew
• ◆ Dual-mass flywheel:
  60 Nm + 180° (1/2 turn)

• Dual-mass flywheel
• ◆ Removing and installing
  
• ◆ Removing and installing needle bearing => Page 13-29
• Crankshaft bearing
• ◆ Checking axial and radial clearance
  => Page 13-22
• Bolt, tightening torque 10 Nm
• Oil spray jet
• ◆ For piston cooling
• Oil seal for rear sealing flange
• ◆ Renewing => Page 13-24

• Bolt, tightening torque 10 Nm
• Rear sealing flange
• Gasket
• Bolt, tightening torque 25 Nm
• ◆ Screw in bolts on left and right sides finger-tight before tightening bolts on main bearing caps.
• Cylinder block
• Gasket

• Collar bolt, tightening torque 30 Nm
• ◆ Apply Loctite when installing
• Bolt, tightening torque 10 Nm
• Front sealing flange
• Crankshaft
• ◆ Checking
• Chain sprocket for oil pump
• ◆ Removing and installing
  => Page 17-63.
• Pistons
• ◆ Checking

• Piston rings
• ◆ Checking
• Circlip for piston pin
• Piston pin
• Conrod
• ◆ Mark cylinder number and installation position of matching conrods and bearing caps before removing
• ◆ Installation position: wider, slightly convex machined surfaces on the same side
• Conrod bearing
• ◆ Do not interchange used bearing shells.
• ◆ Conrods, conrod bearings
  

• Conrod bearing bolts
• ◆ Renew
• ◆ Tightening torque: 30 Nm + 90° (1/4 turn)
• ◆ When measuring radial clearance, tighten to 20 Nm but do not turn further.
• Main bearing cap
• ◆ Marking -1- on oil pump side
• ◆ Renew bolts for main bearing caps
• ◆ Watch position of dowel sleeves
• ◆ Checking bearing clearance
  
• Bolts for main bearing caps
• ◆ Renew
• ◆ Tightening torque
  => Page 13-21
• ◆ Tightening sequence
  => Page 13-21