Operation CHARM: Car repair manuals for everyone.
Home >> Subaru >> 2004 >> Outback F6-3.0L >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Compression Check >> Specifications >> Mechanical Specifications
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Mechanical Specifications

Compression Inspection

Note: Do measurement after warming-up engine, ignition switch off.

Standard 1,275 - 1,471 kPa (13.0 - 15.0 kgf/cm2), 185 - 213 psi)
Limit 1,128 kPa (11.5 kgf/cm2, 164 psi)


Note: Crank engine rpm to 350 rpm at wide open throttle. Take at least two measurements per cylinder, and make sure that the values are correct.
pro multis · About Operation CHARM