Specifications for 1993 2.3L (Vin A) Quad4 Engine

Fastener Tightening English (ft-lbs) Metric (Nm)
Camshaft Housing and Cover to Cylinder Head - Plus Rotate (82A) 11 + 90 degrees 15 + 90 degrees
Camshaft (Exhaust) Rear Cover (96) 10 14
Camshaft Sprocket to Cam Bolt (73) 52 70
Connecting Rod Nuts - Plus Rotate (43) 18 + 80 degrees 25 + 80 degrees
Coolant Outlet to Cylinder Head 19 26
Coolant Pump to Timing Chain Housing 19 26
Coolant Pump to Coolant Pump Cover 124 14
Coolant Pump Cover to Block 19 26
Crankshaft Balancer to Crankshaft - Plus Rotate (63) 110 + 90 degrees 150 + 90 degrees
Crankshaft Bearing Cap Bolts - Plus Rotate (40) 15 + 90 degrees 20 + 90 degrees
Crankshaft Position Sensor to Block (323) 80 (in-lbs) 9
Cylinder Head Bolts Refer to Figure 42
Cylinder Head Threaded Plug (94) 40 54
Engine Mount Bracket to Engine Mount Bolts 40 54
Engine Mounts Refer to Figures 11 - 12
ESC Knock Sensor 15 20
Exhaust Manifold:  

Upper Heat Shield to Manifold Nuts (316)

 19 26

Manifold to Cylinder Head Nuts (160)

 31 42

Manifold to Cylinder Head Studs (110)

 106 (in-lbs) 12

Manifold Brace to Exhaust Manifold

 40 54

Manifold to Oil Pan Nuts (185)

 19 26

Manifold Lower Head Shield Bolt (318)

 124 (in-lbs) 14

Manifold Lower Heat Shield Stud (319)

 63 86

Manifold Lower Heat Shield Stud (317)

 19 26

Manifold Studs to Manifold

 19 26

Exhaust Pipe to Exhaust Manifold Nust (418)

 19 26
Flywheel to Clutch Cover 22 30
Flywheel to Crankshft - Plus Rotate (20) 22 + 45 degrees 30 + 45 degrees
Front Cover to Timing Chain Housing (60, 64) 106 (in-lbs) 12
Fuel Pipe Bracket to Camshsft Housing - Plus Rotate (82b) 11 + 25 degrees 15 + 25 degrees
Fuel Rail to Camfhsft Housing (303) 19 26
Generator, Compressor and Tensioner Bracket Assembly - Bracket to Block (148) 40 54
Generator, Compressor and Tensioner Bracket Assembly - Bracket to Idler (157) 40 54
Generator, Compressor and Tensioner Bracket Assembly - Bracket to Front Brace (149, 150) 19 26
Generator, Compressor and Tensioner Bracket Assembly - Rear Brace to Blocker to Idler (153) 40 54
Ignition Coil & Module Assembly to Camshaft Housings (80) 16 22
Intake Manifold:  

Manifold Brace Bolts

 19 26

Manifold to Cylinder Head (102, 104, 105)

 18 25

Manifold to Cylinder Head Studs

 97 (in-lbs) 11
Oil/Air Separator to Intake Manifold (323) 71 (in-lbs) 8
Oil Filter Connector to Block (15) 21 (in-lbs) 29
Oil FIll Tube Bolt/Screw 71 (in-lbs) 8
Oil Filter to Block (16) 3/4 - 1 Turn after seat
Oil Pan Baffle Bolts (36) 30 40
Oil Pan Baffle Studs (32) 30 40
Oil Pan Bolts (39b) 18 24
Oil Pan Bolts (39a, 39c) 106 (in-lbs) 12
Oil Pan Drain Plug 19 26
Oil Pan Studs (39d) 19 26
Oil Passage Plugs, Block - 1/8 x 27 88 (in-lbs) 10
Oil Passage Plugs, 3/8 x 18 22 30
Oil Passage Plugs, 1/4 x 18 24 32
Oil Passage Plug Bolt (4d) 22 30
Oil Pump to Block 40 54
Oil Pump Brace to Oil Pan Baffle Stud Nut (34) 19 26
Oil Pump Cover to Oil Pump Body 106 (in-lbs) 12
Oil Pump Gerotor Cover to Oil Pump Body 106 (in-lbs) 12
Oil Pump Screen to Brace (30) 106 (in-lbs) 12
Oil Pump Screen to Pump (31) 30 40
Rear Crankshaft Seal Housing to Block (22) 106 (in-lbs) 12
Spark Plugs to Cylinder Head (92) 16 22
Starter to Block Bolt 71 96
Starter to Transaxle Bolt 71 96
Timing Chain Housing to Block or Camshaft Housings (48, 49) 19 26
Timing Chain Housing to Block Stud (50) 19 26
Timing Chain Tensioner to Housing & Block (74) 89 (in-lbs) 10
Throttle Body to Intake Manifold 19 26
Transaxle to Block Bolt (187) 40 54
Transaxle to Block Nut (188) 41 56
Transaxle to Block Stud (189) 115 (in-lbs) 13

 

Engine Specifications

 

English (in)

 

Metric (mm)
Type Inline 4  
Displacement 138 CI  
Liter (VIN) 2.3 (A)  
RPO LGO  
Bore 3.62 92
Stroke 3.35 85
Compression Ratio 10:1  
Firing Order 1-3-4-2  
Oil Capacity 4 Qts.  
Filter Type PF-1225 (AC #)  
Oil Pressure @ Operating Temperature    
2000 RPM
 30 PSI 207 kPa
900 RPM
 15 PSI 103 kPa
Oil Pump    
Gerotor Pocket
Depth
 0.6736-0.6756 17.11-17.16
Diameter
 2.1273-2.1292 54.033-54.083
Inner Gerotor Tip Clearance -Max.
 0.0059 0.15
Outer Gerotor Diameter Clearance
 0.0013-0.0052 0.033-0.133
Outer Gerotor Thickness
 0.6727-0.6731 17.087-17.099
Oil Pump Drive to Driven Gear Backlash 0.0091-0.0201 0.23-0.51
Bore Diameter 3.6217-3.6223 91.992-92.008
Bore Out of Round Max 0.0004 0.010
Bore Taper Max Top to 106mm (4.173 in) down 0.0003 0.008
Runout - Rear Face of Block to Crank Ctr Line Max 0.002 0.05
Cylinder Head
Flatness - Max
 0.008 0.203
Volume
 1.5825-1.6501 (oz.) 46.8-48.8 (cc)
Runout
 0.00196 0.05
Diameter
Intake
 1.3412 35.066
Exhaust
 1.1436 29.048
Valve Guide I.D. 0.2762-0.2772 7.015-7.041
Valve Stem to Valve Guide Clearance
Intake
 0.000984-0.00271 0.025-0.069
Exhaust
 0.00149-0.00319 0.038-0.081
Piston
Clearance in Bore
 0.0007-0.0020 0.019-0.051
Compression Height
 1.260 +/- 0.004 32.0 +/- 0.1
Diameter @ 70 Degrees F. (21 C)
 3.6203-3.6210 91.957-91.973
Pin Bore I.D. @ 70 degrees F (21 C)
 0.8664-0.8666 22.008-22.012
Weight Less Pin & Rings
 14.8151 +/- 0.0021 oz 420 +/- 6 g
Ring Groove Width - Top Compression
 0.061-0.062 1.55-1.57
Ring Groove Width - Second Compression
 0.0598-0.0606 1.52-1.54
Ring Groove Width - Oil
 0.1182-0.1193 3.01-3.03
Piston Rings
Compression Ring Width (both)
 0.05708-0.05827 1.450-1.480
Compression Ring Gap (top)
 0.0138-0.0236 0.35-0.60
Compression Ring Gap (2nd)
 0.0157-0.0256 0.40-0.65
Compression Ring Side Clearance in Groove
Top Ring
 0.0027-0.0047 0.070-0.120
2nd Ring
 0.00157-0.00315 0.040-0.080
Oil Ring Width
 0.01657-0.02060 0.497-0.523
Oil Ring Gap
 0.0157-0.0551 0.40-1.40
Piston Pin
Diameter
 0.8659-0.8661 21.995-22.000
Pin to Piston Clearance, Loose @ 70 degrees F (21 C)
 0.00031-0.00066 0.008-0.017
Pin to Rod Clearance
 0.00027-0.00122 0.007-0.031
Weight
 4.0207 oz 114 g
End Play on Floating Pin
 0.00-0.0236 0.0-0.6
Main Bearing Journal
Diameter
 2.0470-2.0480 51.996-52.020
Width-Main, Thrust Bearing Journal #3 Including Fillets
 1.0959-1.0989 27.837-27.913
Out of round - Max
 0.0005 0.0127
Taper
 0.0005 0.0127
Clearance
 0.0005-0.0023 0.013-0.058
Crankshaft End Play 0.0034-0.0095 0.087-0.243
Rod Bearing Journal
Diameter
 1.8887-1.8897 47.957-48.00
Out of Round - Max
 0.0005 0.0127
Taper
 0.0005 0.0127
Clearance
 0.0005-0.0020 0.013-0.053
Rod Side Clearance
 0.0059-0.0177 0.150-0.450
Width
 1.0925-1.1024 27.75-28.00
Runout of Crank at Flywheel Flange - Max 0.00098 0.025
Supported on Front and Rear Journals
 0.00098 0.025
Clearance to Crankshaft Position Sensor 0.0303-0.0697 0.77-1.77
Connecting Rod I.D. - Small End 0.8664-0.8672 22.007-22.027
Connecting Rod I.D. - Large End 2.0144-2.0154 51.167-51.193
Connecting Rod Width - Small End 0.8622-0.8700 21.900-22.100
Connecting Rod Width - Large End 1.0846-1.0866 27.550-27.600
Connecting Rod Weight Large End (in same Engine) All Within 0.0705 oz 2 g
Connecting Rod Clearance to Piston Pin 0.00027-0.0122 0.007-0.031
Rod Assembly Ctr to Ctr Distance 5.8051-5.8090 147.450-147-550
Oil Pump Drive
Oil Pump Drive Gear
 3.2621-3.2632 82.859-82.887
Crankshaft O.D.
 3.2681-3.2672 83.012-82.988
Oil Pump Drive Gear to Crankshaft
 0.00333-0.00601 0.101-0.153
Flywheel
Fit
 0.00000-0.0005 0.000-0.013
Flange Runout - Max
 0.00120 0.03
Stroke of Crank 3.3366-3.3504 84.9-85.10
O.D. of Seal Diameter on Crank 3.2210-3.2299 81.96-82.04
Runout of Seal Surface 0.0012 0.03
Balancer Hub I.D. to Crank Snout
O.D. Crank
 1.2992-1.3004 33.00-33.03
I.D. Balancer
 1.2992-1.3004 33.00-33.03
Timing Gear Fit to Crankshaft Snout 1.3004-1.3016 33.03-33.06

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