1992 Acura Legend Base, StandardFACTORY OEM SERVICE PROCEDURE

Mechanical Inspection: Compression

Check engine mechanical condition with a compression gauge, vacuum gauge, or an engine analyzer. See engine analyzer manual for specific instructions.

WARNING: DO NOT  use ignition switch during compression tests. Use a remote starter to crank engine. Fuel injectors are triggered by ignition switch during cranking mode, which can create a fire hazard or contaminate engine's oiling system.
ENGINE COMPRESSION (1)

Application Specification
Integra
Compression Ratio
GSR 9.7:1
Except GS-R 9.2:1
Compression Pressure At 250 RPM
Standard 185 psi (13.0 kg/cm2 )
Minimum 135 psi (9.5 kg/cm2 )
Legend
Compression Ratio 9.6:1
Compression Pressure At 200 RPM
Standard 192 psi (13.5 kg/cm2 )
Minimum 142 psi (10.0 kg/cm2 )
Vigor
Compression Ratio 9.0:1
Compression Pressure At 250 RPM
Standard 206 psi (14.5 kg/cm2 )
Minimum 135 psi (9.5 kg/cm2 )
(1) Maximum variation between cylinders is 28 psi (2 kg/cm2 ).
Factory Service Tools

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When to See a Mechanic

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

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