Engine Block
ENGINE BLOCK - STANDARDS AND SERVICE LIMITS SPECIFICATIONS
| 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 | A or I | 86.010-86.020 mm (3.3862-3.3866 in.) | 86.070 mm (3.3886 in.) | |
| B or II | 86.000-86.010 mm (3.3858-3.3862 in.) | 86.070 mm (3.3886 in.) | ||
| Bore Tapper | - | 0.05 mm (0.002 in.) | ||
| reboring limit | - | 0.25 mm (0.01 in.) | ||
| Piston | Skirt O.D. at 10 mm (0.4 in.) from bottom of skirt | /(slash) | 85.980-85.990 mm (3.3850-3.3854 in.) | 85.930 mm (3.3831 in.) |
| B | 85.970-85.980 mm (3.3846-3.3850 in.) | 85.920 mm (3.3827 in.) | ||
| Clearance in cylinder | 0.020-0.040 mm (0.0008-0.0016 in.) | 0.05 mm (0.002 in.) | ||
| Ring groove width | Top | 1.535-1.565 mm (0.0604-0.0616 in.) | 1.25 mm (0.049 in.) | |
| Second | 1.230-1.240 mm (0.0484-0.0488 in.) | 1.25 mm (0.049 in.) | ||
| Oil | 2.010-2.020 mm (0.0791-0.0795 in.) | 2.05 mm (0.081 in.) | ||
| Piston ring | Ring-to-groove clearance | Top | 0.045-0.090 mm (0.0018-0.0035 in.) | 0.13 mm (0.005 in.) |
| Second | 0.040-0.065 mm (0.0016-0.0026 in.) | 0.13 mm (0.005 in.) | ||
| Oil | 0.020-0.050 mm (0.0008-0.0020 in.) | 0.08 mm (0.003 in.) | ||
| Ring end gap | Top | 0.20-0.30 mm (0.008-0.012 in.) | 0.60 mm (0.024 in.) | |
| Second | 0.40-0.50 mm (0.016-0.020 in.) | 0.75 mm (0.030 in.) | ||
| Oil | 0.10-0.30 mm (0.004-0.012 in.) | 0.80 mm (0.031 in.) | ||
| Piston pin | O.D. | 21.962-21.965 mm (0.8646-0.8648 in.) | 21.953 mm (0.8643 in.) | |
| Pin-to-piston clearance | -0.005 to +0.002 mm (-0.00020 to +0.00008 in.) | 0.005 mm (0.0002 in.) | ||
| Connecting rod | Pin-to-rod clearance | 0.005-0.014 mm (0.0002-0.0006 in.) | 0.02 mm (0.0008 in.) | |
| Small-end bore diameter | 21.970-21.976 mm (0.8650-0.8652 in.) | - - - | ||
| Large-end bore diameter | 51.0 mm (2.01 in.) | - - - | ||
| End play installed on crankshaft | 0.15-0.35 mm (0.006-0.014 in.) | 0.40 mm (0.016 in.) | ||
| Crankshaft | Main journal diameter | No. 1 journal No. 2 journal No. 4 journal No. 5 journal |
54.984-55.008 mm (2.1648-2.1657 in.) | - - - |
| No. 3 journal | 54.976-55.000 mm (2.1644-2.1654 in.) | - - - | ||
| Rod journal diameter | 47.976-48.000 mm (1.8888-1.8898 in.) | - - - | ||
| Rod/main journal taper | 0.005 mm (0.0002 in.) max. | 0.010 mm (0.0004 in.) | ||
| Rod/main journal out-of-round | 0.004 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.) | ||
| Runout | 0.02 mm (0.0008 in.) max. | 0.04 mm (0.0016 in.) | ||
| Crankshaft bearing | Main bearing-to-journal oil clearance | No. 1 journal No. 2 journal No. 4 journal No. 5 journal |
0.017-0.041 mm (0.0007-0.0016 in.) | 0.050 mm (0.0020 in.) |
| No. 3 journal | 0.025-0.049 mm (0.0010-0.0019 in.) | 0.055 mm (0.0022 in.) | ||
| Rod bearing clearance | 0.033-0.064 mm (0.0013-0.0025 in.) | 0.077 mm (0.0030 in.) |