Engine Block
STANDARDS AND SERVICE LIMITS - ENGINE BLOCK
| Item | Measurement | Qualification | Standard or New | Service Limit |
|---|---|---|---|---|
| Block | Warpage of deck | 0.07 mm (0.003 in) max. | 0.10 mm (0.004 in) | |
| Bore diameter | 81.000-81.015 mm (3.1890-3.1896 in) | 81.070 mm (3.1917 in) | ||
| Bore taper | -- | 0.05 mm (0.002 in) | ||
| Reboring limit | -- | 0.25 mm (0.01 in) | ||
| Piston | Skirt O.D. at 14 mm (0.55 in) from bottom of skirt | 80.980-80.990 mm (3.1881-3.1886 in) | 80.93 mm (3.186 in) | |
| Clearance in cylinder | 0.010-0.035 mm (0.0004-0.0014 in) | 0.05 mm (0.002 in) | ||
| Piston ring | Ring-to-groove clearance | Top | 0.045-0.070 mm (0.0018-0.0028 in) | 0.13 mm (0.005 in) |
| Second | 0.030-0.055 mm (0.0012-0.0022 in) | 0.13 mm (0.005 in) | ||
| Ring end gap | Top | 0.20-0.35 mm (0.008-0.014 in) | 0.60 mm (0.024 in) | |
| Second | 0.40-0.55 mm (0.016-0.022 in) | 0.70 mm (0.028 in) | ||
| Oil | 0.20-0.50 mm (0.008-0.020 in) | 0.70 mm (0.028 in) | ||
| Piston pin | O.D. | 19.960-19.964 mm (0.7858-0.7860 in) | 19.960 mm (0.7858 in) | |
| Pin-to-piston clearance | -0.004 to +0.003 mm (-0.00016 to +0.00012 in) | 0.006 mm (0.0002 in) | ||
| Connecting rod | Pin-to-rod clearance | 0.005-0.015 mm (0.0002-0.0006 in) | 0.02 mm (0.0008 in) | |
| Small end bore diameter | 19.969-19.975 mm (0.7862-0.7864 in) | -- | ||
| Big end bore diameter | 48.0 mm (1.89 in) | -- | ||
| End play | 0.15-0.35 mm (0.006-0.014 in) | 0.45 mm (0.018 in) | ||
| Crankshaft | Main journal diameter | 54.976-55.000 mm (2.1644-2.1654 in) | -- | |
| Rod journal diameter | 44.976-45.000 mm (1.7707-1.7716 in) | -- | ||
| Rod/main journal taper | 0.005 mm (0.0002 in) max. | 0.010 mm (0.0004 in) | ||
| Rod/main journal out-of-round | 0.005 mm (0.0002 in) max. | 0.010 mm (0.0004 in) | ||
| End play | 0.10-0.35 mm (0.004-0.014 in) | 0.45 mm (0.018 in) | ||
| Total runout | 0.03 mm (0.0012 in) max. | 0.04 mm (0.0016 in) | ||
| Crankshaft bearing | Main bearing-to-journal oil clearance | 0.018-0.034 mm (0.0007-0.0013 in) | 0.045 mm (0.0018 in) | |
| Connecting rod bearing-to-journal oil clearance | 0.024-0.042 mm (0.0009-0.0017 in) | 0.055 mm (0.0022 in) |