| Cylinder diameter | 83 mm |
| Piston stroke | 73 mm |
| Volume | 2.5 liters |
| Compression pressure in the cylinder at 250 rpm: | |
| - nominal | 203 psi |
| - minimum | 142 psi |
| Oil pressure (the engine is warmed up): | |
| – 1000 rpm | 28 psi |
| – 3000 rpm | 49 – 71 psi |
| Cylinder head | |
| Maximum permissible deformation | 0.098 mm |
| Valves and valve springs | |
| Valve border width: | |
| - intake | 0.888 mm |
| - graduation | 0.985 mm |
| Valve stem diameter: | |
| - intake | 5.878 – 5.890 mm |
| - graduation | 5.872 – 5.885 mm |
| Clearance between valve stem and guide bushing: | |
| - intake | 0.025 – 0.058 mm |
| - graduation | 0.030 – 0.063 mm |
| Valve spring: | |
| – maximum deviation from a right angle | 1.6 mm |
| – length in free state: | |
| • intake | 43.3 mm |
| • graduation | 46.2 mm |
| Camshafts and valve lifters | |
| Bearing journal diameter | |
| Rear cylinder block: | |
| – N1: | |
| • inlet valve | 29.502 – 29.528 mm |
| • exhaust valve | 25.532 – 25.550 mm |
| – N₂, 3 and 4 | 25.502 – 25.525 mm |
| – N5 | 25.532 – 25.550 mm |
| Front cylinder block: | |
| – N1: | |
| • inlet valve | 25.502 – 25.550 mm |
| • exhaust valve | 29.505 – 29.522 mm |
| – N₂, 3 and 4 | 25.502 – 25.525 mm |
| – N5 | 25.502 – 25.550 mm |
| Bearing lubrication clearance: | |
| – N1 and 5 | 0.04 – 0.08 mm |
| – N₂, 3 and 4 | 0.07 – 0.11 mm |
| Cam height (intake and exhaust valves): | |
| - nominal | 42.863 mm |
| - minimum | 42.667 mm |
| Free play: | |
| - nominal | 0.05 – 0.10 mm |
| - maximum | 0.14 mm |
| Beating | 0.017 mm |
| Pusher diameter | 29.488 – 29.503 mm |
| The gap between the pusher and the walls of its socket: | |
| - nominal | 0.245 – 0.065 mm |
| - maximum | 0.178 mm |
| Valve clearance (1998 models only) | |
| - intake | 0.243 – 0.310 mm |
| - graduation | 0.263 – 0.328 mm |
| Crankshaft and connecting rods | |
| Connecting rod bearing: | |
| – diameter | 52.108 – 52.120 mm |
| – maximum taper and ovality | 0.05 mm |
| Bearing lubrication clearance: | |
| - nominal | 0.023 – 0.043 mm |
| - maximum permissible | 0.08 mm |
| Lateral clearance (free play) connecting rod: | |
| - nominal | 0.175 – 0.325 mm |
| - maximum permissible | 0.400 mm |
| Main bearing: | |
| – diameter: | |
| • nominal | 60.936 – 60.980 mm |
| • minimal | 60.965 mm |
| – maximum taper and ovality | 0.005 mm |
| Lubrication gap: | |
| - nominal | 0.038 – 0.055 mm |
| - maximum | 0.063 mm |
| Crankshaft free play: | |
| - nominal | 0.08 – 0.28 mm |
| - maximum permissible | 0.31 mm |
| Thickness of the thrust half ring | 1.970 – 2.018 mm |
| Cylinder block | |
| Maximum permissible deformation of the cylinder block surface | 0.148 mm |
| Cylinder diameter | 83.17 – 83.19 mm |
| Pistons, piston rings | |
| Piston diameter (nominal) | 83.125 – 81.525 mm |
| Clearance between piston and cylinder: | |
| - nominal | 0.030 – 0.055 mm |
| - maximum | 0.128 mm |
| Piston ring end clearance: | |
| – N1 (upper) compression ring | 0.150 – 0.295 mm |
| – N₂ (middle) compression ring | 0.250 – 0.375 mm |
| - oil scraper ring | 0.200 – 0.675 mm |
| Clearance between piston ring and side surface of ring groove: | |
| – N1 (upper) compression ring | 0.020 – 0.065 mm |
| – N₂ (middle) compression ring | 0.030 – 0.065 mm |
| - maximum | 0.15 mm |
Tightening torques, Nm
| Main Bearing Cap Bolts: | |
| – step 1 bolts A and B | 23 – 26 |
| – stage 2 bolts C | 18 – 20 |
| – step 3 bolts A | Tighten another 80° |
| – step 4 bolts B | Tighten another 70° |
| – stage 5 bolts C | Tighten another 60° |
| – step 6 bolts A, B and C | Repeat steps 3, 4 and 5 |
| Bolts securing the lower half of the block to the upper half* | 19 – 20 |
| Connecting rod cap bolts: | |
| - step 1 | 22 – 26 |
| - stage 2 | Tighten another 90° |
* Cm. subsection 3.2.2 for more information.
** Tighten only after the main bearing cap bolts have been tightened.