LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2005 >> TJ (CANADA) L6-4.0L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Block Assembly >> System Specifications
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

System Specifications

CYLINDER BLOCK
Flatness 0.03 mm (per 25 mm (0.001 inch) per 1 inch)
0.05 mm (per 152 mm ( 0.002 inch) per 6 inch)
Flatness (MAX) 0.20 mm ((MAX) For Total Length 0.008 inch) MAX For Total Length
Cylinder Bore Diameter 98.45 - 98.48 mm (3.8759 - 3.8775 inch)
Out Of Round (MAX) 0.025 mm (0.001 inch)
Taper (MAX) 0.025 mm (0.001 inch)
Deck Height 240.03 - 240.18 mm (9.450 - 9.456 inch)
Deck Clearance (Below Deck) 0.546 mm (0.0215 inch)
Main Bearing Bore Diameter 68.351 - 68.376 mm (2.691 - 2.692 inch)

PISTONS
Weight (Less Pin) 417 - 429 Grams (14.7 - 15.1 oz.)
Piston Pin Bore Diameter 23.650 - 23.658 mm (0.9312 - 0.9315 inch)
Piston Pin To Bore (Centerline To Piston Top) 40.61 - 40.72 mm (1.599 - 1.603 inch)
Piston To Bore Clearance 0.018 - 0.038 mm (0.0008 - 0.0015 inch)
Piston Ring Groove Height
Compression Rings 1.530 - 1.555 mm (0.0602 - 0.0612 inch)
Oil Control Rings 4.035 - 4.060 mm (0.1589 - 0.1598 inch)
Piston Ring Groove Diameter
No. 1 Compression 88.39 - 88.65 mm (3.48 - 3.49 inch)
No. 2 Compression 87.63 - 87.88 mm (3.45 - 3.46 inch)
No. 3 Oil Control 89.66 - 89.92 mm (3.53 - 3.54 inch)

PISTON PINS
Piston To Pin Clearance 0.0102 - 0.0208 mm (0.0005 - 0.0009 inch)
Diameter 23.637 - 23.640 mm (0.9306 - 0.9307 inch)
Piston-Pin To Connecting Rod (Press Fit) 8.9 kN 2000 ft. lbs.

PISTON RINGS
Ring Gap
Top Compression Ring 0.229 - 0.610 mm (0.0090 - 0.0240 inch)
Second Compression Ring 0.483 - 0.965 mm (0.0190 - 0.0380 inch)
Oil Control (Steel Rails) 0.254 - 1.500 mm (0.010 - 0.060 inch)
Side Clearance
Top Compression Ring 0.042 - 0.084 mm (0.0017 - 0.0033 inch)
Second Compression Ring 0.042 - 0.084 mm (0.0017 - 0.0033 inch)
Oil Ring (Steel Ring) 0.06 - 0.21 mm (0.0024 - 0.0083 inch)

CONNECTING RODS
Bearing Clearance 0.025 - 0.076 mm (0.001 - 0.003 inch)
Preferred 0.044 - 0.050 mm (0.0015 - 0.0020 inch)
Side Clearance 0.25 - 0.48 mm (0.010 - 0.019 inch)
Piston Pin Bore Diameter 0.023.59 - 23.62 mm (0.9288 - 0.9298 inch)
Bearing Bore (Less Bearings) 56.08 - 56.09 mm (2.2080 - 2.2085 inch)
Total Weight (Less Bearing) 663-671 Grams (23.39 - 23.67 oz.)
Length (Center To Center) 155.52 - 155.62 mm (6.123 - 6.127 inch)
Twist (MAX.) 0.002 mm (per mm (0.002 inch) per inch
Bend (MAX.) 0.002 mm (per mm (0.002 inch) per inch

CRANKSHAFT
Main Bearing Journal Diameter
No. 1-6 63.489 - 63.502 mm (2.499 - 2.500 inch)
No. 7 63.449 - 63.487 mm (2.498 - 2.499 inch)
Bearing Clearance 0.03 - 0.06 mm (0.001 - 0.0025 inch)
Preferred 0.051 mm (0.002 inch)
Out Of Round (MAX) 0.013 mm (0.0005 inch)
Taper (MAX) 0.013 mm (0.0005 inch)
End Play 0.038 - 0.165 mm (0.0015 - 0.0065 inch)
Connecting Rod Journal Diameter 53.17 - 53.23 mm (2.0934 - 2.0955 inch)

Vibration Damper Bolt 108 Nm (80 ft. lbs.)