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.
Crankshaft, Main & Connecting Rod Bearings
1998 Lexus SC 300SECTION Crankshaft, Main & Connecting Rod Bearings
CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS
| Application | In. (mm) | |||||||
|---|---|---|---|---|---|---|---|---|
| Crankshaft | ||||||||
| End Play | ||||||||
| Standard | .0008-.0087 (.020-.220) | |||||||
| Wear Limit | .0118 (.300) | |||||||
| Runout | .0024 (.060) | |||||||
| Main Bearings | ||||||||
| Journal Diameter (1) | ||||||||
| Size Mark "0" | 2.44086-2.44094 (61.9980-62.0000) | |||||||
| Size Mark "1" | 2.44078-2.44086 (61.9960-61.9980) | |||||||
| Size Mark "2" | 2.44070-2.44078 (61.9940-61.9960) | |||||||
| Size Mark "3" | 2.44063-2.44070 (61.9920-61.9940) | |||||||
| Size Mark "4" | 2.44055-2.44063 (61.9900-61.9920) | |||||||
| Size Mark "5" | 2.44047-2.44055 (61.9880-61.9900) | |||||||
| Size Mark "6" | 2.44039-2.44047 (61.9860-61.9880) | |||||||
| Size Mark "7" | 2.44031-2.44039 (61.9840-61.9860) | |||||||
| Journal Out-Of-Round | .0008 (.020) | |||||||
| Journal Taper | .0008 (.020) | |||||||
| Oil Clearance | ||||||||
| Standard Crankshaft | ||||||||
| Standard | .0010-.0016 (.025-.040) | |||||||
| Wear Limit | .0024 (.060) | |||||||
| .010" (.25 mm) Undersize Crankshaft | ||||||||
| Standard | .0010-.0024 (.025-.060) | |||||||
| Wear Limit | .0031 (.080) | |||||||
| Crankpin | ||||||||
| Journal Diameter (2) | ||||||||
| Size Mark "0" | 2.0470-2.0472 (51.994-52.000) | |||||||
| Size Mark "1" | 2.0468-2.0470 (51.988-51.994) | |||||||
| Size Mark "2" | 2.0465-2.0468 (51.982-51.988) | |||||||
| Journal Out-Of-Round | .0008 (.020) | |||||||
| Journal Taper | .0008 (.020) | |||||||
| Oil Clearance | ||||||||
| Standard Crankshaft | ||||||||
| Standard | .0009-.0016 (.023-.041) | |||||||
| Wear Limit | .0027 (.070) | |||||||
| .010" (.25 mm) Undersize Crankshaft | ||||||||
| Standard | .0011-.0026 (.028-.066) | |||||||
| Wear Limit | .0031 (.080) | |||||||
|
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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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.