Engine Mechanical Specifications. Chevrolet Optra

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2009 🢒 Optra - Mexico 🢒 Engine 🢒 Engine Mechanical - 1.6L (LXT) 🢒 Engine Mechanical Specifications

Application	Specification
Application	Metric	English
Block
Cylinder Bore Diameter	79 mm	3.1 in
Cylinder Bore Out-of-Round - Maximum	0.0065 mm	0.0065 mm
Cylinder Bore Taper - Maximum	0.0065 mm	0.0065 mm
Camshaft
Bearing Journal #1 OD	29.935-29.95 mm	1.1785-1.1791 in
Bearing Journal #2-5 OD	26.935-26.95 mm	1.0604-1.0610 in
Camshaft Lobe Lift - Exhaust	8.5 mm	0.335 in
Camshaft Lobe Lift - Intake	8.5 mm	0.335 in
End Play	0.10-0.25 mm	0.004-0.0089 in
Cooling System
Capacity	7.2 L	7.6 qt
Crankshaft
Connecting Rod Bearing Clearance - All	0.019-0.071 mm	0.0007-0.0028 in
Connecting Rod Bearing Side Clearance	0.070-0.242 mm	0.0027-0.009 in
Connecting Rod Journal Diameter	42.971-72.987 mm	1.691-1.692 in
Connecting Rod Journal Out-of-Round	0.004 mm	0.0001 in
Connecting Rod Journal Taper	0.005 mm	0.0001 in
Crankshaft End Play	0.05-0.28 mm	0.002-0.011 in
Crankshaft Main Bearing Clearance - All	0.026-0.042 mm	0.001-0.002 in
Crankshaft Main Journal Diameter	54.982-54.994 mm	2.164-2.165 in
Crankshaft Main Journal Out-of-Round	0.004 mm	0.0001 in
Crankshaft Main Journal Taper	0.005 mm	0.0001 in
Cylinder Head
Overall Height	134.08-134.23 mm	5.279-5.285 in
General Data
Bore	79 mm	3.1 in
Compression Ratio	9.5:1
Displacement	1 598 cm³	97.5 in³
Engine Type	Dual Overhead Cam L-4
Firing Order	1-3-4-2
Maximum Power at 5,800 RPM	80 kW	120.7 hp
Maximum Torque	165 N·m	121.7 lb ft
RPO	L91
Spark Plug Gap	1.0-1.1 mm	0.039-0.043 in
Stroke	81.5 mm	3.21 in
VIN	6
Lubrication System
Lubricating Type	Forced Feed
Oil Capacity - With Filter	3.75 L	4 qt
Oil Pump
Gap Between Oil Pump Body and Outer Rotor	0.40-0.484 mm	0.0157-0.019 in
Inner Rotor Side Clearance	0.035-0.085 mm	0.001-0.003 in
Outer Rotor Side Clearance	0.45-0.10 mm	0.02-0.04 in
Relief Valve Spring Free Length	81 mm	3.2 in
Pin
Piston Pin Diameter	18.0 mm	0.708 in
Piston Pin Offset	0.7-0.9 mm	0.028-0.036 in
Piston
Clearance to Bore	0.020-0.040 mm	0.0008-0.0016 in
Piston Diameter	78.970 mm	3.1090 in
Piston Ring End Gap
First Compression Ring	0.2-0.3 mm	0.008-0.012 in
Second Ring Compression	0.5-0.6 mm	0.02-0.024 in
Piston Ring to Groove Clearance
First Compression Ring	0.050-0.080 mm	0.002-0.003 in
Second Compression Ring	0.050-0.082 mm	0.002-0.032 in
Sealants and Adhesives
Camshaft Carrier to Cylinder Head	HN 1581 - Loctite® 515
Exhaust Manifold Studs/Nuts	Anti-Seize Compound - HMC Spec HN 1325
Oil Gallery Plug	HN 1256 - Loctite® 242
Oil Pan Bolts	HN 1256 - Loctite® 242
Oil Pan Pickup Tube Bolts	HN 1256 - Loctite® 242
Oil Pump Bolts	HN 1256 - Loctite® 242
Rear Main Bearing Cap	GE P/N RTV 159
Valve Springs
Valve Spring Load - Closed	247-273 N @ 32 mm	182-202 lb @ 1.25 in
Valve Spring Load - Open	554-606 N @ 23 mm	409-447 lb @ 0.90 in
Valves
Valve Diameter - Exhaust	27.10-27.38 mm	1.085-1.0795 in
Valve Diameter - Intake	28.45-28.69 mm	1.1203-1.1297 in
Valve Face Angle	45-45.25 degrees
Valve Face Runout	0.03 mm	0.00118 in
Valve Guide Inside Diameter	6.0-6.02 mm	0.236-0.237 in
Valve Lash Compensators	Hydraulic Tappet
Valve Seat Angle	44.5-45 degrees
Valve Seat Runout	0.05 mm	0.002 in
Valve Seat Width - Exhaust	1.4-1.8 mm	0.055-0.071 in
Valve Seat Width - Intake	1.17-1.57 mm	0.046-0.062 in
Valve Stem Diameter - Intake	5.955-5.970 mm	0.2344-0.2350 in
Valve Stem Diameter - Exhaust	5.935-5.950 mm	0.2337-0.2343 in

Valve Guide Reaming Table

Size	Reamer	Production Code	Service Code
Normal	--	--	K
1.9 mm (0.075 in)	KM-805	1	K1
3.8 mm (0.150 in)	--	2	K2