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.
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HOMESERVICE MANUALSMAZDA2009B2300 L4-2.3LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYCRANKSHAFT, ENGINE
2009 Mazda B2300 L4-2.3L
Crankshaft, Engine
2009 Mazda B2300 L4-2.3LSECTION Crankshaft, Engine
Crankshaft
Crankshaft end play (Standard) 0.22-0.45 mm (0.0087-0.0177 in)
Crankshaft end play (Maximum) 0.55 mm (0.0216 in)
Crankshaft runout (Maximum) H 0.05 mm (0.0019 in)
Main journal bearing size
STD: 51.980-52.000 mm (2.0464-2.0472 in)
USO.25: 51.730-51.750 mm (2.0366-2.0373 in)
Main journal out of round
(Maximum) 0.05 mm (0.0019 in)
Crank pin journal diameter [LF]
STD: 46.980-47.000 mm (1.8497-1.8503 in)
USO.25: 46.730-46.750 mm (1.8398-1.8405 in)
Crank pin journal diameter [L3]
STD: 49.980-50.000 mm (1.9677-1.9685 in)
USO.25: 49.730-49.750 mm (1.9579-1.9586 in)
Crank pin out of round
(Maximum) (0.05 mm (0.0019 in)
Main journal oil clearance
(Standard) 0.019-0.035 mm (0.0007-0.0013 in)
(Maximum) 0.10 mm (0.0039 in)
Crankshaft end play (Standard) 0.22-0.45 mm (0.0087-0.0177 in)
Crankshaft end play (Maximum) 0.55 mm (0.0216 in)
Crankshaft runout (Maximum) H 0.05 mm (0.0019 in)
Main journal bearing size
STD: 51.980-52.000 mm (2.0464-2.0472 in)
USO.25: 51.730-51.750 mm (2.0366-2.0373 in)
Main journal out of round
(Maximum) 0.05 mm (0.0019 in)
Crank pin journal diameter [LF]
STD: 46.980-47.000 mm (1.8497-1.8503 in)
USO.25: 46.730-46.750 mm (1.8398-1.8405 in)
Crank pin journal diameter [L3]
STD: 49.980-50.000 mm (1.9677-1.9685 in)
USO.25: 49.730-49.750 mm (1.9579-1.9586 in)
Crank pin out of round
(Maximum) (0.05 mm (0.0019 in)
Main journal oil clearance
(Standard) 0.019-0.035 mm (0.0007-0.0013 in)
(Maximum) 0.10 mm (0.0039 in)
RENDER: 1.0x
NO RELATED
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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.