Contents: General information ↧ Cylinder bore diameter ↧ Piston ↧ Piston rings ↧ Crankshaft ↧ Piston pin ↧ Camshaft ↧ Oil pump ↧ Valve mechanism ↧
General information
| Engine type | 4-cylinder (in-line) |
| Working volume of cylinders | 1,498 l |
| Cylinder diameter and piston stroke | 76.5x81.5 mm |
| Compression ratio | 9,5 ±0,2:1 |
| Cylinder firing order | 1-3-4-2 |
Cylinder bore diameter
| Diameter | 76.5 mm |
| Deviations from circular shape (max) | 0.0065 mm |
| Taper (max) | 0.0065 mm |
Piston
| Piston diameter | 76,470 mm |
| Clearance between piston and cylinder wall | 0.030 mm |
Piston rings
| Compression, gap in the joint | Top | 0.3 mm |
| 2nd compression | 0.3 mm | |
| Axial clearance in piston ring groove | Top | 0.02 mm |
| 2nd compression | 0.02 mm |
Crankshaft
Neck of the root
| Diameter | 54.982-54.994 mm |
| Taper (max) | 0.005 mm |
| Deviation from roundness (max) | 0.004 mm |
| Main bearing clearance | 0.005 mm |
| Crankshaft end runout | 0.1 mm |
Crank pin
| Diameter | 42.971-42.987 mm |
| Taper (max) | 0.005 mm |
| Deviation from roundness (max) | 0.004 mm |
| Connecting rod bearing clearance | 0.019-0.070 mm |
| Connecting rod side clearance | 0.070-0.242 mm |
Piston pin
| Diameter | 18,000 mm |
| Finger displacement | 0.5-0.7 mm |
Camshaft
| Lifting the intake cams | 6.12mm | |
| End runout | 0.09-0.21 mm | |
| Camshaft journal outer diameter | №1 | 39,445 mm |
| №2 | 39,700 mm | |
| №3 | 39.945 mm | |
| №4 | 40,200 mm | |
| №5 | 40.445 mm | |
| Bearing inner diameter | №1 | 39,500 mm |
| №2 | 39,750 mm | |
| №3 | 40,000 mm | |
| №4 | 40,250 mm | |
| №5 | 40,500 mm | |
Oil pump
| Clearance between oil pump housing and outer rotor | 0.400-0.484 mm |
| Outer rotor side clearance | 0.045-0.100 mm |
| Inner rotor side clearance | 0.035-0.085 mm |
| Free length of valve spring | 81 mm |
Valve mechanism
(The original text can be found on the website «ChevyMan.ru»)