Engine – mechanical (V6) (Engine block): Tightening torques
- Make
- Alfa Romeo
- Model
- 155 Factory Service Manual
- Year
- 1992–1998
- Section
- Tightening torques › Engine block
‹ Prev FLUIDS AND LUBRICANTS (Continued)Next › Tightening nuts securing cylinder head to engine block
Engine – mechanical (V6)Engine block
Engine block
| Part | Nm | kgm |
|---|---|---|
| Nuts securing main caps to supports on engine block (in oil) | 84 ÷ 92.7 | 8.56 ÷ 9.45 |
| Screws securing flywheel to crankshaft (with fixative) | 112.8 | 11.5 |
| Nut securing crankshaft front pulley (in oil) | 235.4 | 24 |
| Screws securing rod caps (in oil) | 53.4 ÷ 59 | 5.45 ÷ 6.0 |
| Screws securing water pump body to engine block | 8.1 ÷ 9.3 | 0.83 ÷ 0.95 |
| Screw securing belt tensioner pulley | 17 ÷ 20 | 1.7 ÷ 2.0 |
| Screws securing exhaust manifold | 25.5 | 2.6 |
| Screws securing front cover | 8.1 ÷ 9.3 | 0.83 ÷ 0.95 |
| Tightening starter motor | 38.25 ÷ 45 | 3.9 ÷ 4.6 |
| Oil sump drainage plug | 64 ÷ 79 | 6.5 ÷ 8 |
| Oil filter | 14.7 ÷ 19.6 | 1.5 ÷ 2 |
| Screws securing hydraulic belt tensioner cover | 8.1 ÷ 10 | 0.83 ÷ 1.02 |
| Oil sump retaining screws | 9 ÷ 11 | 0.9 ÷ 1.1 |
| Water pump pulley retaining screws | 8.5 ÷ 10.5 | 0.87 ÷ 1.07 |
| Water pump cover retaining screws | 6.5 ÷ 10.5 | 0.66 ÷ 1.07 |
| Thermostat unit retaining screws | 32.3 ÷ 39.9 | 3.3 ÷ 4.1 |
Cylinder head
| Part | Nm | kgm |
|---|---|---|
| Nut securing camshaft (in oil) | 16 ÷ 18 | 1.63 ÷ 1.84 |
| Nut securing camshaft front hub | 97 ÷ 117.12 | 10 ÷ 12 |
| Spark plug tightening (in ISECO Molykote A oil) | 24.5 ÷ 34.3 | 2.5 ÷ 3.5 |
| Engine oil pressure meter (on oil filter support) | 10.6 ÷ 13.1 | 1.1 ÷ 1.3 |
| Minimum engine oil level sensor (on engine block) | 25 | 2.5 |
| Minimum engine oil pressure warning lamp sensor (on oil filter support) | 34 ÷ 42 | 3.5 ÷ 4.3 |
| Engine oil temperature sensor (on engine block) | 34 ÷ 42 | 3.5 ÷ 4.3 |
| Nut-screw regulating rocker arm clearance | 14.8 ÷ 17.7 | 1.5 ÷ 1.8 |
| Screws securing return pulley | 17.8 ÷ 22.1 | 1.82 ÷ 2.25 |
| Screws securing timing cover | 8.9 - 11 | 0.91 ÷ 1.1 |
| Screws securing pulley to front and rear hubs | 13 ÷ 15.69 | 1.32 ÷ 1.6 |
‹ Prev FLUIDS AND LUBRICANTS (Continued)Next › Tightening nuts securing cylinder head to engine block
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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