2017-2024 Subaru Impreza Valve Spring - Single Torque Specs

2.0L H4

Applies to 2017, 2018, 2019, 2020, 2021, 2022, 2023, and 2024 Subaru Impreza

Labor Time:3 hours

Torque Values (10 specifications)

Component	Nm	lb-ft	Notes
Cover Bolts	16	12	—
Electrical Connector Bolts	7	5	—
⚠️ Gasket Bolts	20	15	—
⚠️ Gasket Surface Bolts	20	15	Clean mating surfaces
⚠️ Mounting Bolts	47	35	—
⚠️ Rocker Arm Bolts	30	22	Tighten with cam lobe pointing away
Sensor Bolts	11	8	—
Sensor Mounting Bolts	11	8	—
⚠️ Spark Plugs - Aluminum Head	20	15	Apply anti-seize to threads
Valve Cover Bolts	10	7	Tighten in sequence

The primary torque specification for valve spring - single on a 2017-2024 Subaru Impreza is 16 Nm (12 lb-ft).

There are 10 torque specifications for valve spring - single on the 2017-2024 Subaru Impreza 2.0L H4, covering all related fasteners and components.