Questioni own a 2001 S10 2.2 L4 same engine configuration and 99+ and i've been pressed to find some engine specifics i used to have a sheet from mitchell on demand that gave the valve size , bore & stroke , rocker arm ratio , push rod size ect.. what i'm needing some of the information mainly for the rocker arms i'm wanted to swap out the old stock set with some roller rockers but cannot find out what ratio ect that i need to place my order , so far i've been un successful with my attempts at getting the information i'm hoping i can get lucky with somebody that knows where i might find a resource to this info , thanks so much for your time
AnswerHi Cody, This will make your day...
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Engine Mechanical Specifications
Application
Specifications
Metric
English
General Data
Engine Type
L-4
Regular Production Option (RPO) Code LN2 VIN Code 4/L43 VIN Code 5
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
0.038-0.088 mm
0.0015-0.0035 in
Journal Diameter
47.453-47.478 mm
1.868-1.869 in
Lobe Lift - Inlet and Exhaust
6.687 mm
0.2633 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
0.015-0.087 mm
0.0006-0.0034 in
Piston Pin
Clearance In Piston
0.0079-0.018 mm
0.00031-0.00071 in
Diameter
20.3200-20.3251 mm
0.8000-0.8002 in
Interference Fit In Rod
0.021-0.0511 mm
0.0008-0.002 in
Piston Ring Compression
Second Groove Side Clearance
0.02-0.08 mm
0.0008-0.0031 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
37 mm
1.45 in
Valve Head Diameter - Inlet
44 mm
1.73 in
Valve Margin - Exhaust
2.21-1.79 mm
0.087-0.070 in
Valve Margin - Inlet
1.56-1.16 mm
0.061-0.046 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
361-325 N @ 40.64 mm
81.2-73.1 lb @ 1.600 in
Valve Springs Load - Open
957-893 N @ 29.85 mm
215-201 lb @ 1.175 in
Valve Stem to Guide Clearance - Exhaust
0.035-0.075 mm
0.0014-0.0029 in
Valve Stem to Guide Clearance - Inlet
0.019-0.053 mm
0.0007-0.0020 in
Valve Tip to Retainer Groove Centerline - Exhaust
5.38-5.90 mm
0.212-0.232 in
Valve Tip to Retainer Groove Centerline - Intake
4.94-5.46 mm
0.194-0.215 in
Have a Great Day
Mark
