Just before the old NY j site went offline, I saved the ln2 page and info. If somebody wants to host the info somewhere I've got a few images and html file with the old layout. Until then, a copy paste will have to do:
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2200 L4 (LN2) OHV (Over Head Valve) Engine
98+ (LN2) L4
2.2L L4 (LN2) Features & Benefits
1998 Year Changes
Cylinder head - New head with cast combustion chambers and new intake and exhaust ports set the stage for improved emissions and drivability.
Low friction valve-train - Use of roller rocker arms on the 2200 engine greatly reduces friction in the valve-train.
Composite intake manifold - The new composite manifold coupled with the new cylinder head provide significant improvements in low and mid-range engine performance, along with reductions in noise and mass.
Camshaft revisions - Camshaft profile changes improve mid-range torque when combined with the new head and intake manifold.
Piston revisions - Changes in the bowl of the piston have been made to pair with the new cylinder head. Revisions also aid in noise reduction.
Engine cooling - A new cooling flow arrangement enhances cooling throughout the engine.
Evaporative emissions - The stainless steel construction of the fuel rail allows for reduced evaporative emissions.
Further fuel rail enhancements - The addition of a fuel rail accumulator on the J-Car application gives a significant noise reduction advantage.
Accessory drive - A new tensioner mounted off the front cover yields improved QRD to the accessory drive system.
2001 Model Year Changes
CAMSHAFT - The LN2's assembled steel camshaft is similar to the 3.1-liter LG8 and 3.4-liter LA1 V6s. The shaft is stamped from rolled steel and the lobes are pressed on. The process requires far less machining than conventional production, and the result is a sturdy, economical cam. For model year 2001, the cam is assembled with durable powder metal journals. The new journals allow common assembly for the LN2, LG8 and LA1, and reduce cost.
BETTER CATS - The catalytic converter has the same volume as that used for model year 2000. Yet improved technology allows the converter to work as efficiently with less precious metals in the substrate, or the core of the converter brick where the catalytic reaction begins. The new converter reduces cost considerably and still allows the LN2 to meet National Low Emission Vehicle (NLEV) standards.
STARTER - The new starter motor, supplied by Delco Remy America, draws less amperage than the starter used for model year 2000, yet delivers the same cold cranking power. That means the same starting power with less drain on the battery. The starter is also lighter and costs less to manufacture.
SLEEVELESS COOLANT SENSOR - The coolant temperature sensor uses a plastic insulator to protect electrical leads inside the brass housing, rather than a rubber sleeve. The new sensor reduces the possibility of assembly rejection or shorting in operation.
In preparation for flexible-fuel capability in the L43, the 2200 cylinder head was fitted with more durable, pressed-in powder metal valve seats for model year 2000. Maximum fuel pressure was increased from 300 kPa to 400 kPa, improving hot starting and performance under high operating temperatures. The throttle body was fitted with gold-plated terminals for its electrical connections to further improve reliability and durability.
The 2.2 OHV line four was launched in the 1982 Chevrolet Cavalier. With nearly two decades of continuous improvement, it remains Powertrain's highest-volume four-cylinder engine in North America. The LN2 underwent significant revisions in 1998 and changed to the 2200. The cylinder heads were revised to improve combustion efficiency and fuel economy. Intake and exhaust manifolds were redesigned to improve airflow, while cam profiles where revised to improve mid-range torque.
Dyno Chart of Base 2.2 (LN2) L4 Engine
Views Of the 2200 Engine
Engine Removal
2200 Block Diagram 2200 Oil System 2200 Head Diagram 2200 Timing Assembly 2200 Intake/Exhaust Assembly
Fuel Shut Off: 6000 rpm
Block: Cast Iron
Cylinder Head: Cast Aluminum
Intake Manifold: Composite
Exhaust Manifold: High Silicon Molybdenum Cast Nodular Iron
Main Bearing Caps: Cast Gray Iron
Crankshaft: Cast Nodular Iron
Camshaft: Assembled Steel
_______________________________________________________________________________________________________
Engine Mechanical Specifications
Application Specifications
Metric English
General Data
* Engine Type
L-4
* Regular Production Option (RPO) Code LN2 VIN Code 4
* Displacement
2.2 L 134 CID
* Bore
89 mm 3.5 in
* Stroke
88 mm 3.46 in
* Compression Ratio
9:1
* Firing Order
1-3-4-2
* Oil Pressure @ 65°C (150°F)
348 kPa 56 psi @ 3000 RPM
Camshaft
* Journal Clearance
0.013-0.089 mm 0.0005-0.0035 in
* Journal Diameter
47.453-47.478 mm 1.868-1.869 in
* Lobe Lift - Inlet and Exhaust
6.685 mm 0.263 in
Crankshaft
* Crankshaft End Play
0.0511-0.1780 mm 0.002-0.007 in
* Main Bearing Clearance
0.015-0.047 mm 0.0006-0.0019 in
* Main Journal Diameter
63.360-63.384 mm 2.4945-2.4954 in
* Main Journal Out Of Round
0.005 mm 0.00019 in
* Main Journal Taper
0.005 mm 0.00019 in
* Rod Bearing Journal Clearance
0.025-0.079 mm 0.00098-0.0031 in
* Rod Bearing Journal Diameter
50.758-50.784 mm 1.9983-1.9994 in
* Rod Bearing Journal Out Of Round
0.005 mm 0.00019 in
* Rod Bearing Journal Taper
0.005 mm 0.00019 in
* Rod Side Clearance
0.10-0.38 mm 0.0039-0.0149 in
Cylinder Bore
* Diameter
88.991-89.009 mm 3.5036-3.5043 in
* Lubrication System
* Oil Capacity Without Filter Change
3.473 L 3.5 qts
* Oil Pressure (3000 RPM @ 65°C (150°F)
348 kPa 56 psi min.
* Out Of Round Maximum
0.013 mm 0.0005 in
* Taper -- Thrust Side Maximum
0.013 mm 0.0005 in
* When Changing the Oil Filter, Up to an Additional 0.473 Liter or One Half Quart of Oil May Be Needed. Filter Type or Equivalent
PF-47
Cylinder Head
Cylinder Head Deck Face Overall Maximum Flatness 0.08 mm 0.003 in
Cylinder Head Deck Face Maximum Flatness within any 150 mm (5.92 in) length 0.05 mm 0.002 in
Cylinder Head Deck Face Maximum Flatness within 25 mm (0.984 in) length 0.025 mm 0.001 in
Oil Pump
* End Clearance
0.05-0.18 mm 0.002-0.007 in
* Gear Diameter - Drive Gear
38.05-38.10 mm 1.498-1.50 in
* Gear Diameter - Idler
38.05-38.10 mm 1.498-1.5 in
* Gear Lash
0.094-0.195 mm 0.004-0.008 in
* Gear Length - Drive Gear
30.45-30.48 mm 1.199-1.20 in
* Gear Length - Idler
30.45-30.48 mm 1.199-1.20 in
* Gear Pocket Depth
30.36-30.44 mm 1.195-1.198 in
* Gear Pocket Diameter
38.18-38.25 mm 1.503-1.506 in
* Gear Side Clearance - Drive Gear
0.038-0.102 mm 0.001-0.004 in
* Gear Side Clearance - Idler
0.038-0.102 mm 0.001-0.004 in
* Oil Pump Drive to Driven Gear Backlash
0.23-0.51 mm 0.0091-0.0201 in
* Outer Gerotor Thickness
17.087-17.099 mm 0.6727-0.6731 in
* Valve to Bore Clearance
0.038-0.089 mm 0.0015-0.0035 in
Piston
* Clearance - 42.7 mm from top of piston
* Factory Specification
0.015-0.047 mm 0.00059-0.00185 in
* Service Specification
0.055-0.087 mm 0.0022-0.0034 in
Piston Pin
* Clearance In Piston
0.0079-0.0155 mm 0.00031-0.00061 in
* Diameter
20.3225-20.3251 mm 0.8001-0.8002 in
* Interference Fit In Rod
0.034-0.064 mm 0.0013-0.0025 in
Piston Ring Compression
* Second Groove Side Clearance
0.04-0.08 mm 0.0016-0.0031 in
* Second Ring Gap
0.30-0.45 mm 0.0012-0.0177 in
* Top Groove Side Clearance
0.05-0.09 mm 0.0020-0.0035 in
* Top Ring Gap
0.25-0.50 mm 0.010-0.020 in
Piston Ring Oil
* Gap
0.25-0.76 mm 0.010-0.030 in
* Groove Clearance
0.013-0.220 mm 0.0005-0.0087 in
Valve System
* Rocker Arm Ratio
-- 1.6
* Valve Face Angle
-- 45°
* Valve Face Runout
0.038 mm 0.0014 in
* Valve Guide Inside Diameter
7.000-7.020 mm 0.275-0.276 in
* Valve Head Diameter - Exhaust
44 mm 1.73 in
* Valve Head Diameter - Inlet
37 mm 1.45 in
* Valve Margin - Exhaust
2.13-1.87 mm 0.083-0.073 in
* Valve Margin - Inlet
1.49-1.23 mm 0.058-0.048 in
* Valve Overall Length - Exhaust
127 mm 5.00 in
* Valve Overall Length - Inlet
134.23 mm 5.28 in
* Valve Seat Width - Exhaust
3.51 mm 0.138 in
* Valve Seat Width - Inlet
2.80 mm 0.110 in
* Valve Springs Free Length
48.7 mm 1.91 in
* Valve Springs Load - Closed
361-324 N·m @ 40.64 mm 81.2-72.8 lb @ 1.600 in
* Valve Springs Load - Open
957-893 N·m @ 29.85 mm 215-201 lb @ 1.175 in
* Valve Stem to Guide Clearance - Exhaust
0.035-0.076 mm 0.0014-0.0029 in
* Valve Stem to Guide Clearance - Inlet
0.020-0.053 mm 0.0007-0.0020 in
* Valve Tip to Retainer Groove Centerline
4.97-5.46 mm 0.195-0.214 in
_______________________________________________________________________________________________________
Fastener Tightening Specifications
Application Specifications
Metric English
Accelerator Cable Mounting Bracket 10 N·m 89 lb in
Accessory Bracket Bolts 50 N·m 37 lb ft
Accessory Drive Belt Idler Pulley 50 N·m 37 lb ft
Camshaft Position Sensor to Block Bolt 10 N·m 89 lb in
Camshaft Rear Cover Bolts 12 N·m 106 lb in
Camshaft Sprocket 130 N·m 96 lb ft
Camshaft Thrust Plate Bolts 12 N·m 106 lb in
Clutch Cover and Pressure Plate Assembly Bolts
* First Pass
20 N·m 15 lb ft
* Final Pass
45 degrees
Connecting Rod Cap Nuts 52 N·m 38 lb ft
Crankcase Front Cover Bolts 11 N·m 97 lb in
Crankshaft Main Bearing Cap Bolts 95 N·m 70 lb ft
Crankshaft Pulley Hub to Crankshaft Bolts 105 N·m 77 lb ft
Crankshaft Pulley to Hub Bolt 50 N·m 37 lb ft
Crankshaft Sensor Bolt 8 N·m 72 lb in
Cylinder Head Bolts -- Long
* First Pass
63 N·m 46 lb ft
* Final Pass
90 degrees
Cylinder Head Bolts -- Short
* First Pass
58 N·m 43 lb ft
* Final Pass
90 degrees
Direct Ignition System Coil Assembly 25 N·m 18 lb ft
Engine Lift Bracket Nut 50 N·m 37 lb ft
Engine Mount Assembly Cage Nuts 45 N·m 33 lb ft
Engine Mount Assembly to Accessory Bracket Bolts
* First Pass
60 N·m 44 lb ft
* Final Pass
90 degrees
Engine Mount Assembly to Body Nuts 66 N·m 49 lb ft
Engine Mount Strut Bolt
* First Pass
100 N·m 74 lb ft
* Final Pass
90 degrees
Engine Mount Strut Bracket Bolts (Front) 66 N·m 49 lb ft
Engine Mount Strut Bracket Bolts (Rear) 75 N·m 55 lb ft
Exhaust Manifold Nuts 13 N·m 118 lb in
Flywheel Bolts 75 N·m 55 lb ft
Intake Manifold Bolts 24 N·m 17 lb ft
Intake Manifold Nuts 24 N·m 17 lb ft
Intake Manifold Studs 12 N·m 105 lb in
Knock Sensor 19 N·m 26 lb ft
Lifter Guide 11 N·m 97 lb in
Oil Fill Tube 50 N·m 37 lb ft
Oil Filter 17 N·m 13 lb ft
Oil Filter Adapter 35 N·m 26 lb ft
Oil Gallery Plug (Large) - at Rear of Engine Block 33 N·m 24 lb ft
Oil Gallery Plug (Small ) - at Rear of Engine Block 15 N·m 11 lb ft
Oil Gallery Plugs - at Side of Block above Oil Filter 21 N·m 15 lb ft
Oil Pan 10 N·m 89 lb in
Oil Pressure Sensor/Switch 12 N·m 106 lb in
Oil Pump Cover Bolts 10 N·m 89 lb in
Oil Pump Drive Assembly 25 N·m 18 lb ft
Oil Pump Mounting Bolt 44 N·m 32 lb ft
Oxygen Sensor 42 N·m 31 lb ft
Rocker Arm Bolts 25 N·m 19 lb ft
Rocker Arm Cover Bolts 10 N·m 89 lb in
Serpentine Drive Belt Tensioner Bolt 50 N·m 37 lb ft
Spark Plugs 17 N·m 13 lb ft
Throttle Body to Intake Manifold Bolts 10 N·m 89 lb in
Timing Chain Tensioner Bolts 24 N·m 18 lb ft
Water Jacket Drain Plug 15 N·m 11 lb ft
Water Outlet Pipe 26 N·m 19 lb ft
Water Pump 25 N·m 18 lb ft
Water Pump Inlet 25 N·m 18 lb ft
Water Pump Pulley Bolts 30 N·m 22 lb ft
_______________________________________________________________________________________________________
GM SPO Group Numbers
Application GM SPO Group Number
Automatic Transmission Engine Flywheel 0.666
Camshaft Bearing 0.539
Camshaft Timing Chain 0.724
Connecting Rod 0.603
Connecting Rod Bearing Kit 0.616
Coolant Radiator 1.219
Crankshaft Balancer 0.659
Crankshaft Bearing Kit 0.096
Cylinder Head 0.269
Cylinder Head Gasket 0.289
EGR Valve Gasket 3.68
Engine Block N.S.
Engine Camshaft 0.519
Engine Cooling Thermostat 1.246
Engine Crankshaft 0.646
Engine Cooling Fan 1.055
Engine Front Cover 0.206
Engine Front Cover Gasket 0.207
Exhaust Manifold 3.601
Exhaust Manifold Gasket 3.27
Ignition Coil 2.17
Intake Manifold 3.265
Intake Manifold Gasket N.S.
Manual Transmission Engine Flywheel 0.666
Oil Filter 1.836
Oil Filter Adapter 1.84
Oil Filter Adapter Gasket 1.84
Oil Level Indicator 1.516
Oil Level Indicator Tube 1.516
Oil Pan Kit with Gasket 1.429
Oil Pan Reinforcement 1.426
Oil Pump 1.652
Oil Pump Drive Shaft 1.639
Piston with Pin 0.629
Piston with Ring Kit 0.643
Radiator Air Deflector 1.272
Radiator Fan Shroud 1.277
Radiator Outlet Hose 1.173
Radiator Surge Tank 1.24
Spark Plug 2.27
Starter Motor 2.041
Throttle Body 3.725
Valve Lifter 0.459
Valve Lifter Guide 0.439
Valve Pushrod 0.426
Valve Rocker Arm Cover 0.386
Valve Rocker Arm Cover Gasket 0.423
Valve Spring 0.303
Water Pump Gasket 1.079
Water Pump Kit 1.069
Water Pump with Gasket 1.069
_______________________________________________________________________________________________________
Sealers, Adhesives, and Lubricants
GM Part Number Type Of Material Application
1052396 Engine Oil Supplement Bearing Surfaces at Assembly
1051396 Engine Oil Supplement Camshaft Bearings, Lobes
12345493 Loctite® 271 Flywheel Bolts
12345382 Loctite® 242 Engine Mount Bolts
12346286 Loctite® 5900 Oil Pan, Oil Pan Bolts
1051396 Engine Oil Supplement Add to engine oil after new cam, lifters, or crankshaft bearing installation.
1052914 RTV Sealant Crankshaft Keyway
1052080 Gasket Paste Water Pump Bolts
12345493 Loctite® DRI-LOC Sealer Water Jacket Core Plugs
12346004 Thread Sealer Engine Block Threaded Plugs
12346286 Loctite® 5900 Rear Oil Pan Seal Ears
