Crankshaft R&R Torque Specifications

2002-2010 Lexus SC 430 4.3L V8

Labor Time:20 hours

Torque Values (23 specifications)

Component	Nm	lb-ft	Notes
⚠️ Connecting Rod Bolts	45	33	TTY - critical torque plus angle
Cover Bolts	16	12	—
⚠️ Crankshaft Pulley Bolt	180	133	Often TTY - check spec, may require impact
⚠️ Cylinder Head Bolts	65	48	TTY - tighten in sequence plus angle
⚠️ Flexplate Bolts	85	63	Automatic transmissions
⚠️ Flywheel Bolts	95	70	Often TTY, tighten in star pattern
⚠️ Front Main Seal Housing	12	9	—
⚠️ Gasket Bolts	20	15	—
⚠️ Harmonic Balancer Bolt	180	133	Often TTY, may need impact
⚠️ Main Bearing Cap Bolts	75	55	TTY - tighten in sequence plus angle
Mounting Bolts	27	20	—
⚠️ Mounting Bolts	47	35	—
⚠️ Oil Drain Plug	35	26	Use new crush washer
⚠️ Oil Pan Bolts	12	9	Tighten in sequence
⚠️ Oil Pump Bolts	12	9	—
⚠️ Oil Pump Pickup Tube	12	9	—
⚠️ Rear Main Seal Housing	12	9	—
Sensor Bolts	11	8	—
⚠️ Timing Chain Guide Bolts	12	9	Replace if worn
⚠️ Timing Chain Tensioner Bolt	25	18	Install with pin/clip to compress
⚠️ Timing Cover Bolts - 10mm	45	33	Tighten in sequence
⚠️ Timing Cover Bolts - 8mm	25	18	Tighten in sequence
⚠️ Transmission-to-Engine Bolts	55	41	—

The primary torque specification for crankshaft r&r on a 2002-2010 Lexus SC 430 is 45 Nm (33 lb-ft). Note: TTY - critical torque plus angle

There are 23 torque specifications for crankshaft r&r on the 2002-2010 Lexus SC 430 4.3L V8, covering all related fasteners and components.