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.
2007 Mazda 6 V6-3.0LFACTORY OEM SERVICE PROCEDURE
Connecting Rod, Engine
CONNECTING ROD
Piston pin bore diameter; 21.017-21.031 mm (0.827-0.828 inch)
Crankshaft bearing bore diameter; 53.015-53.035mm (2.0872-2.0879 inch)
Length (center to center) 138.06-138.14mm (5.435-5.38 inch)
Alignment (bore to bore max difference); Pin bore and crank bearing bore must be parallel and in same vertical plane within the specified total difference when measured at the ends of a 203 mm bar, 101.5 mm on each side of rod centerline.
Twist 0.050 mm per 25 (0.0019 per 0.984 inch)
Band 0.038 mm per 25 (0.0014 per 0.984 inch)
Side clearance (assembled to crank)
Standard 0.100-0.30mm (0.0039-0.0118 inch)
Service limit 0.35mm (0.0137 inch) Max
Connecting rod caps and bolts
Stage 1 Tighten to 23 Nm {2.3 kgf-cm, 17 ft lbs}
Stage 2 Tighten to 43 Nm {4.4 kgf-cm, 32 ft. lbs.}
Piston pin bore diameter; 21.017-21.031 mm (0.827-0.828 inch)
Crankshaft bearing bore diameter; 53.015-53.035mm (2.0872-2.0879 inch)
Length (center to center) 138.06-138.14mm (5.435-5.38 inch)
Alignment (bore to bore max difference); Pin bore and crank bearing bore must be parallel and in same vertical plane within the specified total difference when measured at the ends of a 203 mm bar, 101.5 mm on each side of rod centerline.
Twist 0.050 mm per 25 (0.0019 per 0.984 inch)
Band 0.038 mm per 25 (0.0014 per 0.984 inch)
Side clearance (assembled to crank)
Standard 0.100-0.30mm (0.0039-0.0118 inch)
Service limit 0.35mm (0.0137 inch) Max
Connecting rod caps and bolts
Stage 1 Tighten to 23 Nm {2.3 kgf-cm, 17 ft lbs}
Stage 2 Tighten to 43 Nm {4.4 kgf-cm, 32 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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