1992 Volvo 940 GL, AW70FACTORY OEM SERVICE PROCEDURE

Engine Compression

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio
240 9.8:1
740 & 940
Turbo 8.7:1
Non-Turbo 9.8:1
960 10.7:1
Compression Pressure (Minimum)
240, 740 & 940 128 psi (9 kg/cm2 )
960 184 psi (13 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.