audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Engine cylinder head, valve gear > < Piston and cylinder dimensions
Checking radial clearance of conrod bearings
Checking radial clearance of conrod bearings
Special tools and workshop equipment required
t  Plastigage
  Note
t  Do not interchange used bearings.
t  Bearing shells worn down to nickel layer must be renewed
–  Remove conrod bearing caps.
–  Clean bearing caps and bearing journals.
–  Place Plastigage onto bearing journal or into bearing shells (length of Plastigage should correspond to width of bearing).
–  Fit conrod bearing cap and tighten to 30 Nm. Do not rotate crankshaft.
–  Remove conrod bearing caps once more.
–  Compare width of Plastigage with measurement scale:
l  Radial clearance (new): 0.015 ... 0.062 mm
l  Wear limit: 0.12 mm.
   

Engine cylinder head, valve gear > < Piston and cylinder dimensions