Engine Mechanical Specifications. Chevrolet Optra

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2006 🢒 Optra - Mexico 🢒 Preface 🢒 Cautions and Notices 🢒 Engine Mechanical Specifications

Table 1:

Application	Specification
Application	Metric	English
General Data
Engine Type	4 Cylinder - In-Line
Displacement	1399 cm³	85.4 in³
Bore	77.9 mm	3.07 in
Stroke	73.4 mm	2.89 in
Compression Ratio	9.5:1
Firing Order	1-3-4-2
Maximum Power - At 6200 RPM	69 kw	92.5 hp
Maximum Torque - At 3400 RPM	130 N·m	95.9 lb ft
Cylinder Bore
Diameter	77.9 mm	3.07 in
Out of Round - Maximum	0.0065 mm	0.00025 in
Taper - Maximum	0.0065 mm	0.00025 in
Piston
Diameter	77.87 mm	3.07 in
Clearance to Bore	0.020-0.040 mm	0.0008-0.0016 in
Piston Rings
Ring, End Gap - Top Compression	0.15-0.3 mm	0.006-0.012 in
Ring, End Gap - Second Compression	0.3-0.5 mm	0.006-0.012 in
Groove Clearance - Top Impression	0.05-0.09 mm	0.0019-0.0035 in
Groove Clearance - Second Compression	0.06-0.01 mm	0.0024-0.0039 in
Piston Pin
Diameter	17.990-17.995 mm	0.7083-0.7085 in
Pin Off-Set	0.7-0.9 mm	0.0315-0.00039 in
Camshaft
Lift Intake - 1.4 SOHC	7.5 mm	0.283 in
Lift Exhaust	7.2 mm	0.283 in
End Play	0.1-0.25 mm	0.0039-0.0079 in
Journal OD - No. 1	29.935-29.95 mm	1.1785-1.1791 in
Journal OD - No. 2	26.935-26.95 mm	1.0604-1.0610 in
Journal OD - No. 3	26.935-26.95 mm	1.0604-1.0610 in
Journal OD - No. 4	26.935-26.95 mm	1.0604-1.0610 in
Journal OD - No. 5	26.935-26.95 mm	1.0604-1.0610 in
Bearing OD - No. 1	30.01 mm	1.181 in
Bearing OD - No. 2	27.01 mm	1.063 in
Bearing OD - No. 3	27.01 mm	1.063 in
Bearing OD - No. 4	27.01 mm	1.063 in
Bearing OD - No. 5	27.01 mm	1.063 in
Crankshaft
Main Journal - Diameter - All	55 mm	2.17 in
Taper - Maximum	0.005 mm	0.0001 in
Out of Round - Maximum	0.004 mm	0.0001 in
Main Bearing Clearance - All	0.026-0.042 mm	0.001-0.00165 in
Crankshaft End Play	0.1 mm	0.003 in
Connecting Rod Journal - Diameter - All	43 mm	1.69 in
Taper - Maximum	0.005 mm	0.00019 in
Out of Round - Maximum	0.004 mm	0.00015 in
Rod Bearing Clearance - All	0.019-0.07 mm	0.0007-0.0027 in
Rod Side Clearance	0.07-0.242 mm	0.0027-0.009 in
Valve Stem
Valve Lash Compensators	Hydraulic
Face Angle - All	45-45.25 degrees
Seat Angle - All	44.5-45 degrees
Seat Runout - Maximum, All	0.05 mm	0.0197 in
Face Runout - Maximum, All	0.03 mm	0.0012 in
Seat Width - Intake	1.17-1.57 mm	0.0461-0.0618 in
Seat Width - Exhaust	1.4-1.8 mm	0.055-0.071 in
Valve Guide Inside Diameter - All	6-6.02 mm	0.236-0.237 in
Valve Stem Diameter - Intake	5.955-5.97 mm	0.234-0.235 in
Valve Stem Diameter - Exhaust	5.935-5.95 mm	0.2337-0.2343 in
Valve Diameter - All - Intake	28.45-28.69 mm	1.1203-1.1297 in
Valve Diameter - Exhaust	27.10-27.38 mm	1.0685-1.0795 in
Valve Spring Loads - Valve Open	551-609 N	405-447 lbs
Valve Spring Loads - Valve Closed	247-273 N	181-200 lbs
Lubricating Type	Forced Feed
Oil Filter Type	Cartridge (Full Flow)
Oil Pan Capacity Including Oil Filter	3.75 liter	4 quarts
Oil Pump
Gap Between Oil Pump Body and Out Rotor	0.4-0.484 mm	0.0157-0.0191 in
Out Rotor Side Clearance	0.045-0.1 mm	0.0018-0.0039 in
Inner Rotor Side Clearance	0.035-0.085 mm	0.0014-0.0033 in
Relief Valve Spring Free Length	81 mm	3.2 in
Oil Pump Type	Rotary (Trochoid)

Valve Guide Reaming Table

Size	Reamer	Production Code	Service Code
Normal	--	--	K
0.075	KM-805	1	K1
0.150	--	2	K2