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.
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HOMESERVICE MANUALSNISSAN-DATSUN1991MAXIMA SE, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROLS - SPECIFICATIONSMECHANICAL CHECKSENGINE COMPRESSIONCOMPRESSION SPECIFICATIONS - V6
1991 Nissan-Datsun Maxima SE, Automatic
Compression Specifications - V6
1991 Nissan-Datsun Maxima SE, AutomaticSECTION Compression Specifications - V6
COMPRESSION SPECIFICATIONS - V6
| Application | Specification | ||||
|---|---|---|---|---|---|
| Compression Ratio | |||||
| Maxima, Pathfinder & Pickup | 9.0:1 | ||||
| 300ZX | |||||
| Non-Turbo | 10.5:1 | ||||
| Turbo | 8.5:1 | ||||
| Compression Pressure | |||||
| Maxima, Pathfinder & Pickup | 173 psi (12.0 kg/cm2 ) | ||||
| 300ZX | |||||
| Non-Turbo | 186 psi (13.1 kg/cm2 ) | ||||
| Turbo | 171 psi (12.0 kg/cm2 ) | ||||
| Minimum Compression Pressure (1) | |||||
| Maxima, Pathfinder & Pickup | 128 psi (9.0 kg/cm2 ) | ||||
| 300ZX | |||||
| Non-Turbo | 142 psi (10.0 kg/cm2 ) | ||||
| Turbo | 128 psi (9.0 kg/cm2 ) | ||||
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm2 ) | ||||
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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.