Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1997 Acura 3.5RLFACTORY OEM SERVICE PROCEDURE
Engine Compression: Notes
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1998 Acura Integra, 1998 Acura 3.5RL, 1998 Acura 3.2TL, 1998 Acura 3.0CL, and 1998 Acura 2.5TL. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE COMPRESSION (1)
| Application | Specification | |||||
|---|---|---|---|---|---|---|
| Integra | ||||||
| Compression Ratio | ||||||
| B18B1 Engine | 9.2:1 | |||||
| B18C1 & B18C5 Engine | 10.0:1 | |||||
| Compression Pressure At 250 RPM & WOT | ||||||
| Standard | ||||||
| B18B1 Engine | 200 psi (14.0 kg/cm2 ) | |||||
| B18C1 & B18C5 Engine | 270 psi (19.0 kg/cm2 ) | |||||
| Minimum | 135 psi (9.5 kg/cm2 ) | |||||
| 2.3CL | ||||||
| Compression Ratio | 9.3:1 | |||||
| Compression Pressure At 250 RPM & WOT | ||||||
| Standard | 242 (17.0 kg/cm2 ) | |||||
| Minimum | 135 psi (9.5 kg/cm2 ) | |||||
| 2.5TL | ||||||
| Compression Ratio | 9.6:1 | |||||
| Compression Pressure At 250 RPM & WOT | ||||||
| Standard | 228 psi (16.0 kg/cm2 ) | |||||
| Minimum | 135 psi (9.5 kg/cm2 ) | |||||
| 3.0CL | ||||||
| Compression Ratio | 9.4:1 | |||||
| Compression Pressure At 200 RPM & WOT | ||||||
| Standard | 178 (12.5 kg/cm2 ) | |||||
| Minimum | 135 psi (9.5 kg/cm2 ) | |||||
| 3.2TL & 3.5RL | ||||||
| Compression Ratio | 9.6:1 | |||||
| Compression Pressure At 200 RPM & WOT | ||||||
| Standard | 200 psi (14.0 kg/cm2 ) | |||||
| Minimum | 142 psi (10.0 kg/cm2 ) | |||||
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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.