|
3.1L (Gen I) Engine Specifications
|
General Data:
All dimensions are in millimeters |
|
Type |
60 degree V6 |
|
Displacement |
3.1L |
|
RPO |
LH0 |
|
Bore |
89.0 |
|
Stroke |
84.0 |
|
Deck Height |
224 |
|
Compression Ratio |
8.8:1 |
|
Firing Order |
1-2-3-4-5-6 |
|
Oil Pressure |
69 kPa @500
RPM; 205-380 kPa @ 2000 RPM
(10 psi @ 500 RPM;
30-55 psi @ 2000R RPM) |
|
Cylinder
Bore: |
|
Diameter |
89.02-89.03 |
|
Out of Round |
0.013 (Maximum) |
|
Taper - Thrust
Side |
0.013 (Maximum) |
|
Maximum Deck Warpage |
0.13 |
|
Piston: |
|
Clearance |
0.023-0.056 |
|
Piston Ring: |
|
COMPRESSION |
Groove Clearance
|
Top |
0.051-0.089 |
|
Second |
0.051-0.089 |
|
Gap |
Top |
0.25-0.51 |
|
Second |
0.51-0.071 |
|
OIL |
Groove Clearance |
0.20(Maximum) |
|
Gap |
0.25-0.76 |
|
Piston Pin: |
|
Diameter |
22.992-22.997
|
|
Clearance |
0.010-0.020 |
|
Fit in Rod |
0.018-0.046 |
|
Crankshaft: |
|
Main
Journal |
Diameter |
67.241-67.267 |
|
Taper |
0.005 (Maximum) |
|
Out Of Round |
0.005 (Maximum) |
|
Main Bearing
Clearance |
0.028-0.094 |
|
Crankshaft End
Play |
0.05-0.2 |
|
Crankpin
|
Diameter |
50.757-50.784 |
|
Taper |
0.005 (Maximum) |
|
Out of Round |
0.005 (Maximum) |
|
Rod Bearing
Clearance |
0.028-0.094 |
|
Rod Side
Clearance |
0.18-0.44 |
|
Camshaft: |
|
Lift |
Intake |
6.68 |
|
Exhaust |
6.93 |
|
Journal Diameter |
|
|
Journals 1 & 4 |
47.45-47.80 |
|
Journal Clearance |
0.03-0.10 |
|
Valve System: |
|
Lifter |
Hydraulic |
|
Rocker Arm Ratio |
1.50:1 |
|
Valve
Lash |
Intake |
1-1/2 Turns Down from Zero Lash
|
|
Exhaust |
|
Face Angle
(Intake & Exhaust) |
45 degrees |
|
Seat Angle (Intake & Exhaust) |
46 degrees |
|
Margin |
|
|
Exhaust |
1.55-1.85 |
|
Intake |
170-2.01 |
|
Runout |
0.25 |
|
Stem Clearance |
0.2-.0.8 |
|
Valve
Spring |
Free Length |
48.5 |
|
Pressure
Kg @ mm |
Closed |
41 @ 43.2 |
|
Open |
98 @ 32.8 |
|
Installed Height |
39.9 |
|
Valve
Spring
Damper |
Free Length |
48.5 |
|
Approx # of Coils |
4 |
Fastener Tightening Specifications
|
Item |
Nm |
Ft Lbs |
|
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 |
|
*Manifold Side*
6 2 3 7
5 1 4 8
* Outer Side *
|
|
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 |
|
