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General information |
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Engine type |
4-cylinder (in-line) |
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Working volume of cylinders |
1498 cm³ |
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Cylinder diameter and piston stroke |
76.5x81.5 mm |
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Degree of removal geometric |
9,5 + 0,2:1 |
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Cylinder firing order |
1-3-4-2 |
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Engine cylinder bore diameter |
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Diameter |
76.5 mm |
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Deviations from circular shape (max.) |
0.0065 mm |
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Taper (max) |
0.0065 mm |
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Piston |
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Piston diameter |
76,470 mm |
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Clearance between piston and cylinder wall |
0.030 mm |
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Piston rings |
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Compression, gap in the joint |
Top |
0.3 mm |
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2nd compression |
0.3 mm |
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Axial clearance in piston ring groove |
Top |
0.02 mm |
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2nd compression |
0.02 mm |
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Piston pin |
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Diameter |
18,000 mm |
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Finger displacement |
0.5-0.7 mm |
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Camshaft |
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Lifting the intake cams |
6.12mm |
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End runout |
0.09-0.21 mm |
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Camshaft journal outer diameter |
№1 |
39,445 mm |
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№2 |
39,700 mm |
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№3 |
39.945 mm |
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№4 |
40,200 mm |
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№5 |
40.445 mm |
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Bearing inner diameter |
№1 |
39,500 mm |
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№2 |
39,750 mm |
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№3 |
40,000 mm |
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№4 |
40,250 mm |
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№5 |
40,500 mm |
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Crankshaft |
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Neck of the root |
Diameter |
54.982-54.994 mm |
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Taper (max) |
0.005 mm |
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Deviation from roundness (max.) |
0.004 mm |
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Main bearing clearance |
0.005 mm |
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Crankshaft end runout |
0.1 mm |
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Crank pin |
Diameter |
42.971-42.987 mm |
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Taper (max) |
0.005 mm |
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Deviation from roundness (max.) |
0.004 mm |
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Connecting rod bearing clearance |
0.019-0.070 mm |
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Connecting rod side clearance |
0.070-0.242 mm |
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Valve mechanism |
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Method of regulating valve drive |
Hydraulic valve clearance compensator |
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The cone angle of the valve working surface (between the generatrix and plane of the head) |
46" |
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Cone angle of the valve seat working surface |
46" |
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Radial runout (max, all) |
0.03 mm |
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End runout (max, all) |
0.03 mm |
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Width of the working surface of the saddle |
Inlet |
1.3-1.5 mm |
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Outlet |
1.6-1.8 mm |
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Valve guide bushing inner diameter |
7,030-7,050 mm |
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Valve stem diameter |
7 mm |
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Valve plate diameter |
Inlet |
38.0 mm |
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Outlet |
31.0 mm |
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Valve spring length under load |
Open valve 625 + 25 N |
21.5 mm |
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Closed valve 275 + 15 N |
31.5mm |
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[The original material is located on the website CHEVYMAN]