2017-2024 Mazda Mazda3 Long Block Replacement Torque Specs

2.5L I4

Applies to 2017, 2018, 2019, 2020, 2021, 2022, 2023, and 2024 Mazda Mazda3

Labor Time:12 hours

Torque Values (18 specifications)

Component	Nm	lb-ft	Notes
⚠️ Camshaft Cap Bolts	14	10	Tighten in sequence from center outward, multiple passes
⚠️ Connecting Rod Bolts	45	33	TTY - critical torque plus angle
Cover Bolts	16	12	—
⚠️ Cylinder Head Bolts	65	48	TTY - tighten in sequence plus angle
⚠️ Exhaust Manifold Nuts	30	22	Apply anti-seize, work hot-to-cold
⚠️ Flywheel Bolts	95	70	Often TTY, tighten in star pattern
⚠️ Gasket Bolts	20	15	—
⚠️ Intake Manifold Bolts	25	18	—
⚠️ 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	—
Sensor Bolts	11	8	—
⚠️ Timing Chain Tensioner Bolt	25	18	Install with pin/clip to compress
⚠️ Timing Cover Bolts - 8mm	25	18	Tighten in sequence
⚠️ Transmission-to-Engine Bolts	55	41	—
Valve Cover Bolts	10	7	Tighten in sequence

Other Jobs with Torque Specs

Common Questions

What is the torque spec for long block replacement on a 2017-2024 Mazda Mazda3?

The primary torque specification for long block replacement on a 2017-2024 Mazda Mazda3 is 14 Nm (10 lb-ft). Note: Tighten in sequence from center outward, multiple passes

How many torque specs are there for Mazda Mazda3 long block replacement?

There are 18 torque specifications for long block replacement on the 2017-2024 Mazda Mazda3 2.5L I4, covering all related fasteners and components.