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.
1992 Isuzu Stylus RSFACTORY OEM SERVICE PROCEDURE
Engine Compression
COMPRESSION SPECIFICATIONS
| Application | Specification | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Compression Ratio | ||||||||||
| Amigo, Pickup & Rodeo | ||||||||||
| 2.3L & 2.6L | 8.3:1 | |||||||||
| 3.1L | 8.5:1 | |||||||||
| Impulse | ||||||||||
| Non-Turbo | ||||||||||
| 1.6L | 9.8:1 | |||||||||
| 1.8L | 9.7:1 | |||||||||
| Turbo | 8.5:1 | |||||||||
| Stylus | ||||||||||
| SOHC | 9.1:1 | |||||||||
| DOHC | ||||||||||
| 1.6L | 9.8:1 | |||||||||
| 1.8L | 9.7:1 | |||||||||
| Trooper | ||||||||||
| SOHC | 9.3:1 | |||||||||
| DOHC | 9.8:1 | |||||||||
| Compression Pressure | ||||||||||
| Amigo, Pickup & Rodeo | ||||||||||
| 2.3L & 2.6L | (1) 142-171 psi (9.9-12.0 kg/cm2 ) | |||||||||
| 3.1L | (2) | |||||||||
| Impulse | ||||||||||
| 1.6L | ||||||||||
| Non-Turbo | (3) 185 psi (13.0 kg/cm2 ) | |||||||||
| Turbo | 170 psi (12.0 kg/cm2 ) | |||||||||
| 1.8L | 185 psi (13.0 kg/cm2 ) | |||||||||
| Stylus | ||||||||||
| SOHC | 178 psi (12.5 kg/cm2 ) | |||||||||
| DOHC | 185 psi (13.0 kg/cm2 ) | |||||||||
| Trooper | ||||||||||
| SOHC | 170 psi (12.0 kg/cm2 ) | |||||||||
| DOHC | 178 psi (12.5 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.
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