Engine Mechanical Specifications. Chevrolet Optra 2008

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2008 🢒 Optra 🢒 Engine 🢒 Engine Mechanical - 2.0L (L34 GMDAT) 🢒 Engine Mechanical Specifications

Table 1:

Application	Specification
Application	Metric	English
Camshaft
Bearing Journal OD	42.455-43.470 mm	1.6714-1.7114 in
Camshaft Cap to Bearing Journal Clearance	0.04-0.144 mm	0.0015-0.0056 in
Lift - Exhaust	9.2 mm	0.36 in
Lift - Intake	9.2 mm	0.36 in
Connecting Rod Journal
Diameter - All	48.970-48.988 mm	1.9279-1.9287 in
Out of Round - Maximum	0.004 mm	0.00015 in
Rod Bearing Clearance	0.013-0.041 mm	0.0005-0.0016 in
Rod Bearing Play	0.006-0.031 mm	0.00023-0.00122 in
Crankshaft
End Play	0.070-0.302 mm	0.0027-0.0118 in
Main Bearing Clearance - All	0.015-0.040 mm	0.00059-0.00157 in
Main Journal Diameter - All	57.974-57.995 mm	2.2788-2.2832 in
Radial Runout - Shaft Support on No. 1 and No. 5 Bearings Measured at No. 3 Journal	0.03 mm	0.00118 in
Service Oversize, Available in 2 Sizes	0.25 and 0.5 mm	0.00098 and 0.019 in
Cylinder Bore
Block Face Distortion	0.01 mm Max	0.00039 in
Cylinder Bore Taper - Maximum	0.013 mm	0.0005 in
Diameter	85.975-86.025 mm	3.384-3.386 in
Out of Round - Maximum	0.013 mm	0.0005 in
Oversize - Measure Replacement Piston before Re-boring	Available in 0.50 mm to Suit Bore	0/019 in
Service Replacement Standard Bore	4 Piston, Pin, and Ring Assemblies Available
Cylinder Head
Maximum Valve Stem Protrusion	39.2 mm	1.544 in
Minimum Overall Height After Machining	133.9 mm	5.271 in
Overall Height	133.975 - 134.025 mm	5.2746-6.2766 in
Valve Guide Height	13.7-14.0 mm	0.53-0.55 in
General Data
Bore	86 mm	3.4 in
Bore Stroke	86 X 86 mm	3.38 in X 3.38 in
Compression Ratio	9.6:1
Displacement	1 998 cm³	121 in³
Engine Type	4 Cylinder-In-Line
Firing Order	1-3-4-2
Lubricating Type	Forced Feed
Maximum Power - at 5,400 RPM	95 kW	127.4 hp
Maximum Torque - at 4,000 RPM	178 N·m	131 lb ft
Oil Filter Type	Cartridge - Full Flow
Oil Pan Capacity - with Oil Filter	4.0 liter	4.2 quarts
Oil Pump Type	Rotary
Piston
Clearance to Bore	0.010-0.030 mm	0.00039-0.0011 in
Diameter	85.955-86.485 mm	3.384-3.404 in
Maximum Piston Protrusion	0.5 mm	0.019 in
Piston Taper	0.013 mm	0.0005 in
Piston Pin
Clearance - In Piston	0.0035-0.0140 mm	0.00013-0.00055 in
Clearance - In Rod	Interference Fit in Rod
Diameter	20.9970-20.9985 mm	0.82665-0.82671 in
Length	61.5 mm	2.42 in
Pin Offset - Toward Thrust Side	1.0 mm	0.04 in
Oil Pump
End Clearance	0.03-0.10 mm	0.001-0.003 in
Gear Lash	0.10-0.20 mm	0.003-0.007 in
Inner Gear to Crescent	0.35-0.40 mm	0.013-0.015 in
Outer Gear to Body	0.11-0.19 mm	0.004-0.007 in
Outer Gear to Crescent	0.40-0.50 mm	0.015-0.01 in
Piston Rings
Oil	0.25-0.76 mm	0.01-0.03 in
Ring, End Gap, Second Compression	0.3-0.5 mm	0.011-0.019 in
Ring, End Gap, Top Compression	0.2-0.35 mm	0.008-0.014 in
Sealants and Adhesives
Camshaft Carrier-to-Cylinder Head	HN 1581 (LOCTITE® 515)
Coolant Jacket Caps and Plugs - Freeze Plugs	HN 1756 (LOCTITE® 176)
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 System
Face Runout - Maximum, All	0.03 mm	0.001 in
Seat Runout - Maximum, All	0.03 mm	0.001 in
Valve Diameter Intake	31.9-32.1 mm	1.2559-1.2637 in
Valve Diameter Intake - Exhaust	28.9-29.1 mm	1.1378-1.1456 in
Valve Guide Inside Diameter	6.000-6.012 mm	0.236-0.237 in
Valve Lash Compensators	Hydraulic
Valve Face Angle	44 degrees
Valve Stem Diameter Intake	5.945-5.960 mm	0.234-0.235 in
Valve Stem Diameter Intake - Exhaust	5.945-5.960 mm	0.234-0.235 in
Valve Seat Angle	45 degrees
Valve Seat Width Intake	1.0-1.5 mm	0.039-0.059 in
Valve Seat Width Intake - Exhaust	1.7-2.2 mm	0.066-0.086 in

Valve Guide Reaming Table

Size	Reamer	Production Code	Service Code
Normal	--	--	K
1.9 mm (0.75 in)	KM-805	1	K1
--	--	2	K2