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.
1993 Honda Prelude VTECFACTORY OEM SERVICE PROCEDURE
Valve Clearance: Notes
VALVE CLEARANCE ADJUSTMENT SPECIFICATIONS
| Model | Intake - In. (mm) | Exhaust - In. (mm) | |
|---|---|---|---|
| Accord | .009-.011 (.23-.28) | .011-.013 (.28-.32) | |
| Civic &Civic Del Sol | .007-.009 (.17-.23) | .009-.011 (.23-.28) | |
| Prelude | |||
| 2.2L Engine | .009-.011 (.23-.28) | .011-.013 (.28-.32) | |
| 2.3L Engine | .003-.004 (.07-.11) | .006-.007 (.15-.19) | |
Factory Service Tools
Use the Manual With the Right Hardware
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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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