Compression Check: Specifications

1995 Honda Prelude L4-2.3L DOHCSECTION Specifications
Check compression with engine at normal operating temperature and throttle in wide open position. Prior to performing test, disable ignition and fuel injection to prevent fuel from being sprayed into cylinders while cranking engine. Ensure is fully charged and that cranking speed is 250 RPM. Standard reading should be 135-178 psi. The maximum variation between cylinders is 28 psi.

RENDER: 1.0x

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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.