2002-2010 Lexus SC 430 Camshaft R&R Torque Specs

4.3L V8

Applies to 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, and 2010 Lexus SC 430

Labor Time:8 hours

Torque Values (23 specifications)

Component	Nm	lb-ft	Notes
⚠️ Cam Phaser Bolt	65	48	Apply threadlocker, hold cam stationary
⚠️ Camshaft Bearing Cap Bolts	14	10	Tighten in sequence, 3 passes
⚠️ Camshaft Cap Bolts	14	10	Tighten in sequence from center outward, multiple passes
Camshaft Position Sensor	10	7	—
⚠️ Camshaft Sprocket Bolt	80	59	Hold cam with wrench on hex
Cover Bolts	16	12	—
Crankshaft Position Sensor	10	7	—
⚠️ Crankshaft Pulley Bolt	180	133	Often TTY - check spec, may require impact
⚠️ Gasket Bolts	20	15	—
⚠️ Harmonic Balancer Bolt	180	133	Often TTY, may need impact
Mounting Bolts	27	20	—
⚠️ Mounting Bolts	47	35	—
⚠️ Oil Drain Plug	35	26	Use new crush washer
⚠️ Rocker Arm Bolts	30	22	Tighten with cam lobe pointing away
⚠️ Rocker Arm Shaft Bolts	25	18	Tighten evenly in sequence
Sensor Bolts	11	8	—
⚠️ Timing Chain Guide Bolts	12	9	Replace if worn
⚠️ Timing Chain Idler Sprocket	25	18	—
⚠️ 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
VVT Solenoid Bolt	10	7	—
Valve Cover Bolts	10	7	Tighten in sequence

The primary torque specification for camshaft r&r on a 2002-2010 Lexus SC 430 is 65 Nm (48 lb-ft). Note: Apply threadlocker, hold cam stationary

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