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.
2012 Scion tC L4-2.5L (2AR-FE)FACTORY OEM SERVICE PROCEDURE
Connecting Rod, Engine
Connecting rod bolts
1st 40 Nm (408 kgf-cm, 30 ft-lbf)
2nd Turn 90°
Standard diameter 8.5 to 8.6 mm (0.335 to 0.339 in.)
Minimum diameter 8.3 mm (0.327 in.)
If the diameter is less than the minimum, replace the connecting rod bolt
Standard Connecting Rod Small End Bush Inside Diameter
Standard Connecting Rod Large End Inside Diameter
If the diameter is not as specified, replace the connecting rod
Connecting rod thrust clearance
Standard thrust clearance 0.160 to 0.512 mm (0.00630 to 0.00202 in.)
Maximum thrust clearance 0.512 mm (0.00202 in.)
Connecting rod oil clearance
Standard oil clearance 0.030 to 0.063 mm (0.00118 to 0.00248 in.)
Maximum oil clearance 0.07 mm (0.00276 in.)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.