Main and rod journals
- Make
- Alfa Romeo
- Model
- 155 Factory Service Manual
- Year
- 1992–1998
- Section
- Crankshaft › Main and rod journals
Engine – mechanical (V6)Main and rod journals · page 1 of 2
Main and rod journals
- Check that the main and rod journal working surfaces do not show traces of irregular wear, nicks, seizing or overheating.
- Place the crankshaft on a tailstock bench and measure the diameter of the main and rod journals to check that they are within the prescribed limits.
NOTE: The nitriding treatment to which the crankshaft has been subject does not permit grinding operations to be carried out, therefore, if it is excessively worn it should be replaced.
NOTE: The crankshaft journals are subdivided into two classes distinguished by a coloured mark in accordance with the operational tolerances.
| RED (A) | 59.973 to 59.979 mm |
|---|---|
| BLUE (B) | 59.967 to 59.973 mm |
| GREEN (C) | 59.961 to 59.967 mm |
| RED (A) | 51.990 to 52.000 mm |
|---|---|
| BLUE (B) | 51.980 to 51.990 mm |
Parts & tools for this job For 1992 Alfa Romeo 155
- PARTEngine gasket setSearch: Alfa Romeo 155 1992 engine gasket set
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLFeeler gauge setSearch: feeler gauge set
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