Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo 155 Factory Service Manual (1992-1998)03 · Engine – mechanical (Twin Spark)
03 · Engine

Checking crankshaft axial play

Make
Alfa Romeo
Model
155 Factory Service Manual
Year
1992–1998
Section
Checking crankshaft axial play › Checking crankshaft axial play
Engine – mechanical (Twin Spark)Checking crankshaft axial play

CHECKING CRANKSHAFT AXIAL PLAY

  1. Using a centesimal dial gauge mounted on a magnetic platform, check that the axial play of the crankshaft is within the prescribed limits.
Crankshaft axial play
0.076 to 0.263 mm
Crankshaft axial play diagram

REFITTING CYLINDER LINERS, PISTONS, RODS, COUPLING OF RODS AND PISTONS

  1. Coupling must be carried out by matching the parts of the same dimensional class marked with paint of the same colour, A (Blue), B (Pink) or C (Green), onto the piston ceiling and on the outside of the cylinder liner.
Clearance between cylinder liner and piston
0.040 to 0.059 mm
Piston and gudgeon pin clearance diagram

MATCHING OF PISTONS AND GUDGEON PINS

  1. Match parts of the same dimensional class, identified by dots of the same colour: BLACK or WHITE on the inside of the gudgeon pins and on the outside of the relative piston hub.
Clearance between piston hole and gudgeon pin
Black 0.003 to 0.008 mm
White 0.002 to 0.008 mm
Piston and gudgeon pin coupling diagram

Parts & tools for this job For 1992 Alfa Romeo 155

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