2014-2018 Mazda Mazda3 Timing Chain Kit Torque Specs

2.5L I4

Applies to 2014, 2015, 2016, 2017, and 2018 Mazda Mazda3

Labor Time:9 hours

Torque Values (20 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
Cover Bolts	16	12	—
⚠️ Crankshaft Pulley Bolt	180	133	Often TTY - check spec, may require impact
Electrical Connector Bolts	7	5	—
⚠️ Gasket Surface Bolts	20	15	Clean mating surfaces
⚠️ Guide Bolts	24	18	—
⚠️ Mounting Bolts	47	35	—
⚠️ Oil Drain Plug	35	26	Use new crush washer
⚠️ Oil Pump Bolts	12	9	—
Sensor Mounting Bolts	11	8	—
⚠️ 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 2014-2018 Mazda Mazda3 is 65 Nm (48 lb-ft). Note: Apply threadlocker, hold cam stationary

There are 20 torque specifications for timing chain kit on the 2014-2018 Mazda Mazda3 2.5L I4, covering all related fasteners and components.