Pistons and connecting rods – seal rings
- Make
- Fiat
- Model
- Croma Factory Service Manual
- Year
- 2005–2010
- Section
- Engine unit › Pistons and connecting rods – seal rings
Manufacturing data and tolerancesPistons and connecting rods – seal rings
PISTONS AND CONNECTING RODS – SEAL RINGS
| Measurement | Value | Validity |
|---|---|---|
| Cylinder compression 1st piston ring gap (mm) | 0.20 ÷ 0.40 | 2.2 16V |
| Cylinder compression 2nd piston ring gap (mm) | 0.35 ÷ 0.55 | 2.2 16V |
| Piston oil scraper ring gap (mm) | 0.25 ÷ 0.76 | 2.2 16V |
| Cylinder compression 1st piston ring thickness (mm) | 1.17 ÷ 1.19 | 2.2 16V |
| Cylinder compression 2nd piston ring thickness (mm) | 1.47 ÷ 1.49 | 2.2 16V |
| Piston oil scraper ring size (mm) | 2.348 ÷ 2.477 | 2.2 16V |
| Cylinder compression 1st piston ring endfloat (mm) | 0.06 | 2.2 16V |
| Cylinder compression 2nd piston ring endfloat (mm) | 0.05 | 2.2 16V |
| Oil scraper ring endfloat (mm) | 0.063 ÷ 0.172 | 2.2 16V |
| Cylinder compression 1st piston ring gap (mm) | 0.20 ÷ 0.35 | 1.9 JTD 8V |
| Cylinder compression 2nd piston ring gap (mm) | 0.25 ÷ 0.50 | 1.9 JTD 8V |
| Piston oil scraper ring gap (mm) | 0.25 ÷ 0.50 | 1.9 JTD 8V |
| Cylinder compression 1st piston ring endfloat (mm) | 0.085 ÷ 0.130 | 1.9 JTD 8V |
| Cylinder compression 2nd piston ring endfloat (mm) | 0.025 ÷ 0.070 | 1.9 JTD 8V |
| Oil scraper ring endfloat (mm) | 0.030 ÷ 0.070 | 1.9 JTD 8V |
| Cylinder compression 1st piston ring gap (mm) | 0.20 ÷ 0.35 | 1.9 JTD 16V |
| Cylinder compression 2nd piston ring gap (mm) | 0.60 ÷ 0.80 | 1.9 JTD 16V |
| Piston oil scraper ring gap (mm) | 0.25 ÷ 0.50 | 1.9 JTD 16V |
| Cylinder compression 1st piston ring thickness (mm) | 1.970 ÷ 1.995 | 1.9 JTD 16V |
| Cylinder compression 2nd piston ring thickness (mm) | 1.970 ÷ 1.990 | 1.9 JTD 16V |
| Piston oil scraper ring size (mm) | 1.970 ÷ 1.990 | 1.9 JTD 16V |
| Cylinder compression 1st piston ring thickness (mm) | 1.970 ÷ 1.995 | 1.9 JTD 8V |
| Cylinder compression 2nd piston ring thickness (mm) | 1.970 ÷ 1.995 | 1.9 JTD 8V |
| Piston oil scraper ring size (mm) | 1.970 ÷ 1.990 | 1.9 JTD 8V |
| Cylinder compression 1st piston ring endfloat (mm) | 0.105 ÷ 0.150 | 1.9 JTD 16V |
| Cylinder compression 2nd piston ring endfloat (mm) | 0.050 ÷ 0.090 | 1.9 JTD 16V |
| Oil scraper ring endfloat (mm) | 0.030 ÷ 0.070 | 1.9 JTD 16V |
| Cylinder compression 1st piston ring gap (mm) | 0.20 ÷ 0.35 | 2.4 JTD 20V |
| Cylinder compression 2nd piston ring gap (mm) | 0.60 ÷ 0.80 | 2.4 JTD 20V |
| Piston oil scraper ring gap (mm) | 0.25 ÷ 0.50 | 2.4 JTD 20V |
| Cylinder compression 1st piston ring endfloat (mm) | 0.105 ÷ 0.150 | 2.4 JTD 20V |
| Cylinder compression 2nd piston ring endfloat (mm) | 0.060 ÷ 0.100 | 2.4 JTD 20V |
| Oil scraper ring endfloat (mm) | 0.030 ÷ 0.070 | 2.4 JTD 20V |
| 1st sealing ring thickness (mm) | 1.970 ÷ 1.995 | 2.4 JTD 20V |
| 2nd sealing ring thickness (mm) | 1.970 ÷ 1.990 | 2.4 JTD 20V |
| Piston oil scraper ring size (mm) | 1.970 ÷ 1.990 | 2.4 JTD 20V |
| Piston ring seat in piston - 1st groove | 2.080 ÷ 2.100 | 1.9 JTD 8V |
| Piston ring seat in piston - 2nd groove | 2.020 ÷ 2.040 | 1.9 JTD 8V |
| Piston ring seat in piston - 3rd groove | 2.020 ÷ 2.040 | 1.9 JTD 8V |
| Cylinder compression 1st piston ring gap (mm) | 0.20 ÷ 0.40 | 1.8 |
| Cylinder compression 2nd piston ring gap (mm) | 0.40 ÷ 0.60 | 1.8 |
| Piston oil scraper ring gap (mm) | 0.25 ÷ 0.75 | 1.8 |
| Cylinder compression 1st piston ring thickness (mm) | 1.170 ÷ 1.190 | 1.8 |
| Cylinder compression 2nd piston ring thickness (mm) | 1.170 ÷ 1.190 | 1.8 |
| Piston oil scraper ring size (mm) | 1.90 ÷ 1.98 | 1.8 |
| Cylinder compression 1st piston ring endfloat (mm) | 0.04 ÷ 0.08 | 1.8 |
| Cylinder compression 2nd piston ring endfloat (mm) | 0.03 ÷ 0.07 | 1.8 |
| Oil scraper ring endfloat (mm) | 0.20 ÷ 0.35 | 1.8 |
Parts & tools for this job For 2005 Fiat Croma
- PARTEngine gasket setSearch: Fiat Croma 2005 engine gasket set
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLFeeler gauge setSearch: feeler gauge set
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