1993 Subaru Legacy SportFACTORY OEM SERVICE PROCEDURE

Compression Specifications - Justy

COMPRESSION SPECIFICATIONS - JUSTY

Application Specification
Compression Pressure 135-156 psi (9.5-11.0 kg/cm2 )
Compression Ratio 9.1:1
Maximum Variation Between Cylinders 28 psi (2.0 kg/cm2 )
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.