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General Data: All dimensions are in millimeters |
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Type |
60 degree V6 |
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Displacement |
3.1L |
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RPO |
LH0 |
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Bore |
89.0 |
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Stroke |
84.0 |
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Deck Height |
224 |
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Compression Ratio |
8.8:1 |
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Firing Order |
1-2-3-4-5-6 |
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Oil Pressure |
69 kPa @500 RPM; 205-380 kPa @ 2000 RPM (10 psi @ 500 RPM; 30-55 psi @ 2000R RPM) |
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Cylinder Bore: |
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Diameter |
89.02-89.03 |
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Out of Round |
0.013 (Maximum) |
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Taper - Thrust Side |
0.013 (Maximum) |
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| Maximum Deck Warpage |
0.13 |
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Piston: |
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Clearance |
0.023-0.056 |
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Piston Ring: |
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COMPRESSION |
Groove Clearance |
Top |
0.051-0.089 |
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Second |
0.051-0.089 |
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Gap |
Top |
0.25-0.51 |
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Second |
0.51-0.071 |
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OIL |
Groove Clearance |
0.20(Maximum) |
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Gap |
0.25-0.76 |
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Piston Pin: |
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Diameter |
22.992-22.997 |
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Clearance |
0.010-0.020 |
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Fit in Rod |
0.018-0.046 |
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Crankshaft: |
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Main Journal |
Diameter |
67.241-67.267 |
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Taper |
0.005 (Maximum) |
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Out Of Round |
0.005 (Maximum) |
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Main Bearing Clearance |
0.028-0.094 |
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Crankshaft End Play |
0.05-0.2 |
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Crankpin |
Diameter |
50.757-50.784 |
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Taper |
0.005 (Maximum) |
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Out of Round |
0.005 (Maximum) |
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Rod Bearing Clearance |
0.028-0.094 |
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Rod Side Clearance |
0.18-0.44 |
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Camshaft: |
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Lift |
Intake |
6.68 |
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Exhaust |
6.93 |
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Journal Diameter |
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| Journals 1 & 4 |
47.45-47.80 |
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Journal Clearance |
0.03-0.10 |
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Valve System: |
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Lifter |
Hydraulic |
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Rocker Arm Ratio |
1.50:1 |
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Valve Lash |
Intake |
1-1/2 Turns Down from Zero Lash |
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Exhaust |
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Face Angle (Intake & Exhaust) |
45 degrees |
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| Seat Angle (Intake & Exhaust) |
46 degrees |
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| Margin | ||||
| Exhaust |
1.55-1.85 |
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| Intake |
170-2.01 |
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| Runout |
0.25 |
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Stem Clearance |
0.2-.0.8 |
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Valve Spring |
Free Length |
48.5 |
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Pressure Kg @ mm |
Closed |
41 @ 43.2 |
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Open |
98 @ 32.8 |
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Installed Height |
39.9 |
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Valve Spring Damper |
Free Length |
48.5 |
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Approx # of Coils |
4 |
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Fastener Tightening Specifications
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Item |
Nm |
Ft Lbs |
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| Camshaft Sprocket Bolt | 24 | 18 | |
| Connecting Rod Cap Nut | 50 | 37 | |
| Crankshaft Damper Bolt | 78 | 58 | |
| Cylinder Head Bolt (In Sequence) (apply thread sealant to bolts) | |||
| First Pass | 55 | 41 | |
| Final Pass | Add 90 degrees | ||
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*Manifold Side* 6 2 3 7 5 1 4 8 * Outer Side * |
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| Exhaust Manifold Bolt | 24 | 18 | |
| Flexplate/Flywheel Bolt | 83 | 61 | |
| Front Timing Cover Case Bolt | |||
| 8mm | 27 | 20 | |
| 10mm | 38 | 28 | |
| Lower Intake Manifold (In Sequence) | |||
| First Pass | 20 | 15 | |
| Final Pass | 30 | 22 | |
| Upper Intake Manifod Bolt | 25 | 18 | |
| Main Bearing Cap Bolt | |||
| First Pass | 50 | 37 | |
| Final Pass | Add 77 degrees | ||
| Oil Filter Adapter | 68 | 50 | |
| Oil Pan Rear Bolts | 25 | 18 | |
| Oil Pan Bolt and Nut (Except Rear 2) | 10 | 8 | |
| Oil Pump Bolt | 41 | 30 | |
| Rocker Arm Stud | 46 | 35 | |
| Belt Tensioner | 33 | 24 | |
| Throttle Body Bolts | 25 | 18 | |
| Timing Chain Damper Bolt | 25 | 18 | |
| Water Pump Pulley Bolt | 24 | 18 | |
| Water Pump | 24 | 18 | |
| Large | 47 | 35 | |
| Medium | 21 | 15 | |
| Small | 10 | 8 | |
| Exhaust Heat Shield Nut | 9 | 8 | |
| Valve Cover Bolt | 8 | 7 | |