Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2002 Jeep TJ (CANADA) L4-2.5LFACTORY OEM SERVICE PROCEDURE
Connecting Rod
CONNECTING RODS
Total Weight (Less Bearing) 663 to 671 grams (23.39 to 23.67 oz.)
Length (Center to Center) 155.52 to 155.62 mm (6.123 to 6.127 inch)
Piston Pin Bore Diameter 23.59 to 23.62 mm (0.9288 to 0.9298 inch)
Bore (Less Bearings) 56.08 to 56.09 mm (2.2080 to 2.2085 inch)
Bearing Clearance 0.025 to 0.076 mm (0.001 to 0.003 inch)
Bearing Clearance (Preferred) 0.044 to 0.050 mm (0.0015 to 0.0020 inch)
Side Clearance 0.25 to 0.48 mm (0.010 to 0.019 inch)
Twist (Max) 0.002 mm per mm (0.002 in. per inch)
Bend (Max) 0.006 mm per mm (0.006 in. per inch)
Connecting Rod Cap Nuts 45 Nm (33 ft. lbs.)
Total Weight (Less Bearing) 663 to 671 grams (23.39 to 23.67 oz.)
Length (Center to Center) 155.52 to 155.62 mm (6.123 to 6.127 inch)
Piston Pin Bore Diameter 23.59 to 23.62 mm (0.9288 to 0.9298 inch)
Bore (Less Bearings) 56.08 to 56.09 mm (2.2080 to 2.2085 inch)
Bearing Clearance 0.025 to 0.076 mm (0.001 to 0.003 inch)
Bearing Clearance (Preferred) 0.044 to 0.050 mm (0.0015 to 0.0020 inch)
Side Clearance 0.25 to 0.48 mm (0.010 to 0.019 inch)
Twist (Max) 0.002 mm per mm (0.002 in. per inch)
Bend (Max) 0.006 mm per mm (0.006 in. per inch)
Connecting Rod Cap Nuts 45 Nm (33 ft. lbs.)
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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