Timing Chain Kit Torque Specifications

2002-2010 Lexus SC 430 4.3L V8

Labor Time:9 hours

Torque Values (15 specifications)

Component	Nm	lb-ft	Notes
⚠️ Cam Phaser Bolt	65	48	Apply threadlocker, hold cam stationary
⚠️ Camshaft Sprocket Bolt	80	59	Hold cam with wrench on hex
⚠️ Crankshaft Pulley Bolt	180	133	Often TTY - check spec, may require impact
⚠️ Guide Bolts	24	18	—
⚠️ Oil Drain Plug	35	26	Use new crush washer
⚠️ Oil Pump Bolts	12	9	—
⚠️ Tensioner Bolt	20	15	—
⚠️ 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	14	10	—
⚠️ Timing Cover Bolts - 10mm	45	33	Tighten in sequence
Timing Cover Bolts - 6mm	10	7	Tighten in sequence
⚠️ Timing Cover Bolts - 8mm	25	18	Tighten in sequence
Valve Cover Bolts	10	7	Tighten in sequence

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

There are 15 torque specifications for timing chain kit on the 2002-2010 Lexus SC 430 4.3L V8, covering all related fasteners and components.