Service Information

Volt

Engine Mechanical Specifications

Application	Specification
Application	Metric	English
General Data
Engine Type	4-Cylinder Inline
Displacement	1398 ccm	85 cu in
Bore	73.4 mm	2.9 in
Stroke	82.6 mm	3.3 in
Compression Ratio	10.5 : 1
Number of Valves	16
Maximum Power @ engine speed kW/RPM	55 KW / 4200
Maximum Torque @ engine speed Nm/RPM / lbf ft/RPM	123 Nm / 4000	91 lbf ft / 4000
Engine Block, Crankshaft, Pistons, and Connecting Rods
Cylinder Bore Diameter Standard	73.392 mm - 73.408 mm	2.8894 in - 2.8901 in
Cylinder Bore Diameter Oversize 0.5	73.892 mm - 73.908 mm	2.9091 in - 2.9098 in
Piston Diameter Standard	73.353 mm - 73.367 mm	2.8879 in - 2.8885 in
Piston Diameter Oversize 0.5	73.853 mm - 73.867 mm	2.9076 in - 2.9081 in
Piston Clearance to Bore	0.025 mm -0.055 mm	0.001 in - 0.0022 in
Piston - Upper Compression Ring Thickness	1.17 mm - 1.195 mm	0.0461 in 0.0470 in
Piston - Upper Compression Ring Gap	0.25 mm - 0.4 mm	0.0098 in - 0.0157 in
Piston - Upper Compression Ring Side Clearance	0.025 mm - 0.07 mm	0.001 in - 0.0028 in
Piston - Lower Compression Ring Thickness	1.17 mm - 1.195 mm	0.0461 in 0.0470 in
Piston - Lower Compression Ring Gap	0.4 mm - 0.6 mm	0.0157 in - 0.0236 in
Piston - Lower Compression Ring Side Clearance	0.025 mm - 0.07 mm	0.001 in - 0.0028 in
Piston - Oil Ring Thickness	1.92 mm - 2 mm	0.0756 in - 0.0787 in
Piston - Oil Ring Gap	0.25 mm - 0.75 mm	0.0098 in - 0.0295 in
Piston - Oil Ring Side Clearance	0.04 mm - 0.12 mm	0.0016 in - 0.0047 in
Gudgeon Pin Bore Diameter	18.006 mm - 18.012 mm	0.7089 in - 0.7091 in
Gudgeon Pin Outer Diameter	17.995 mm - 18 mm	0.7085 in - 0.7087 in
Gudgeon Pin Length	52.7 mm - 53 mm	2.0748 in - 2.0866 in
Gudgeon Pin Clearance to Piston Bore	0.006 mm - 0.017 mm	0.0002 in - 0.0007 in
Gudgeon Pin Clearance to Conrod Bore	Shrinked in Conrod
Crankshaft Balancer Clearance to Engine Front Cover	4.5 mm	0.1772 in
Crankshaft Bearing Journal Standard Diameter (brown or green)	50.004 mm - 50.017 mm	1.9687 in - 1.9692 in
Crankshaft Bearing Journal Undersize 0.25 Diameter (brown/blue or green/blue)	49.754 mm - 49.767 mm	1.9588 in - 1.9593 in
Crankshaft Bearing Journal Undersize 0.5 Diameter (brown/white or green/white)	49.504 mm - 49.517 mm	1.949 in - 1.9495 in
Crankshaft Bearing Journal Width Standard	23.000 mm - 23.052 mm	0.9055 in - 0.9076 in
Crankshaft Bearing Journal Width Undersize 0.25	23.200 mm -23.252 mm	0.9134 in - 0.9154 in
Crankshaft Bearing Journal Width Undersize 0.4	23.400 mm - 23.452 mm	0.9213 in - 0.9233 in
Crankshaft Bearing Mark 328N (brown) - Thickness	1.989 mm -1.995 mm	0.0783 in - 0.0785 in
Crankshaft Bearing Mark 329N (green) - Thickness	1.995 mm - 2.001 mm	0.0785 in - 0.0788 in
Crankshaft Bearing Mark 330N - Thickness Undersize 0.25 (brown/blue)	2.114 mm - 2.120 mm	0.0832 in - 0.0835 in
Crankshaft Bearing Mark 331 - Thickness Undersize 0.25 (green/blue)	2.120 mm - 2.126 mm	0.0835 in - 0.0837 in
Crankshaft Bearing Mark 332 - Thickness Undersize 0.5 (brown/white)	2.239 mm - 2.245 mm	0.0881 in - 0.0884 in
Crankshaft Bearing Mark 332 - Thickness Undersize 0.5 (green/white)	2.245 mm - 2.251 mm	0.0884 in - 0.0886 in
Crankshaft Bearing Clearance	0.007 mm - 0.031 mm	0.0003 in - 0.0012 in
Crankshaft Bearing Clearance Axial	0.100 mm - 0.202 mm	0.0039 in - 0.008 in
Crankshaft Bearing Out Of Round	0.03 mm	0.0012 in
Conrod Bearing Journal Diameter Standard	42.971 mm - 42.987 mm	1.6918 in - 1.6924 in
Conrod Bearing Journal Diameter Undersize 0.25 (blue)	42.721 mm - 42.737 mm	1.6819 in - 1.6826 in
Conrod Bearing Journal Diameter Undersize 0.5 (white)	42.471 mm - 42.487 mm	1.6721 in - 1.6727 in
Conrod Bearing Thickness Standard	1.490 mm - 1.500 mm	0.0587 in - 0.0591 in
Conrod Bearing Thickness Undersize 0.25	1.615 mm - 1.625 mm	0.0636 in - 0.064 in
Conrod Bearing Thickness Undersize 0.5	1.740 mm - 1.750 mm	0.0685 in - 0.0689 in
Conrod Bearing Diameter Standard (upper and lower)	1.490 mm - 1.500 mm	0.0587 in - 0.0591 in
Conrod Bearing Diameter Undersize 0.25 (upper and lower)	1.615 mm - 1.625 mm	0.0636 in - 0.064 in
Conrod Bearing Diameter Undersize 0.5 (upper and lower)	1.740 mm - 1.750 mm	0.0685 in - 0.0689 in
Conrod Bearing Clearance	0.013 mm - 0.061 mm	0.0005 in - 0.0024 in
Cylinder Head And Valve Train
Cylinder Head - Intake Valve Seat Width	1.4 mm - 1.8 mm	0.0551 in - 0.0709 in
Cylinder Head - Exhaust Valve Seat Width	1 mm - 1.4 mm	0.0394 in - 0.0551 in
Cylinder Head - Valve Seat Angle Standard	90° 30'
Cylinder Head - Valve Seat Angle Oversize	110°
Cylinder Head - Intake Valve Guide Inner Diameter Standard	4.991 mm - 5.007 mm	0.1965 in - 0.1971 in
Cylinder Head - Intake Valve Guide Inner Diameter + 0.075	5.066 mm - 5.082 mm	0.1994 in - 0.2001 in
Cylinder Head - Intake Valve Guide Inner Diameter 0.150	5.141 mm - 5.157 mm	0.2024 in - 0.203 in
Cylinder Head - Exhaust Valve Guide Inner Diameter Standard	4.991 mm - 5.007 mm	0.1965 in - 0.1971 in
Cylinder Head - Exhaust Valve Guide Inner Diameter + 0.075	5.066 mm - 5.082 mm	0.1994 in - 0.2001 in
Cylinder Head - Exhaust Valve Guide Inner Diameter + 0.150	5.141 mm - 5.157 mm	0.2024 in - 0.203 in
Cylinder Head - Valve Guide Length	38.7 mm - 39.3 mm	1.5236 in - 1.5472 in
Intake Valve Length Standard	92.9 mm	3.6575 in
Exhaust Valve Length Standard	92.7 mm	3.6496 in
Intake Valve Stem Diameter Standard	4.950 mm - 4.965 mm	0.1949 in - 0.1955 in
Exhaust Valve Stem Diameter Standard	4.930 mm - 4.945 mm	0.1941 in - 0.1947 in
Intake Valve Stem Diameter + 0.075	5.025 mm - 5.040 mm	0.1978 in - 0.1984 in
Exhaust Valve Stem Diameter + 0.075	5.005 mm - 5.020 mm	0.197 in - 0.1976 in
Intake Valve Stem Diameter + 0.150	5.100 mm - 5.115 mm	0.2008 in - 0.2014 in
Exhaust Valve Stem Diameter + 0.150	5.080 mm - 5.095 mm	0.2000 in - 0.2006 in
Intake Valve Disc Diameter	27.9 mm - 28.1 mm	1.0984 in - 1.1063 in
Exhaust Valve Disc Diameter	24.9 mm - 25.1	0.9803 in -- 0.9882 in
Valve Spring Height Free	40 mm	1.5748 in
Valve Spring Height Under Load - Valve open	21.5 mm	0.8465 in
Valve Spring Height Under Load -Valve closed	30 mm	1.1811 in
Valve Clearance to Guide Intake	0.026 mm - 0.057 mm	0.001 in - 0.0022 in
Valve Clearance to Guide Exhaust	0.046 mm - 0.077 mm	0.0018 in - 0.0030 in
Engine Oil
Quality	Dexos II
Filling - With New Oil Filter	3.5 L	3.7 Quarts
Viscosity	5W30 GF-4
Oil Pressure @ Idle Speed	150 kpa	22 psi
Oil Pressure @ 3000 rpm - 3500 rpm	380 kpa - 650 kpa	55 psi - 94 psi
Oil Pump
Axial Clearance Vane Rotor to Cover	0.01 mm	0.0004 in
Axial Clearance Vane to Cover	0.09 mm	0.0036 in
Axial Clearance Vane Ring to Cover	0.04 mm	0.0016 in
Axial Clearance Slide to Cover	0.08 mm	0.0031 in
Axial Clearance Slide Seal to Cover	0.09 mm	0.0036 in
Radial Clearance Vane to Vane Rotor	0.05 mm	0.002 in
Oil Pump Slide Spring Length	76.5 mm	3.0118 in
Radial Clearance Vane to Slide	0.2 mm	0.008 in