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 MANUALSHYUNDAI1990EXCEL BASE, 2D HATCHBACK, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROLS - ADJUSTMENTSVALVE CLEARANCEEXCEL
1990 Hyundai Excel Base, 2D Hatchback, Standard
Valve Clearance: Excel
1990 Hyundai Excel Base, 2D Hatchback, StandardSECTION Excel
- Ensure head bolts are properly tightened before adjusting valves. Ensure engine is at normal operating temperature. Rotate crankshaft clockwise to position cylinder No. 1 on TDC of compression stroke.
- Adjust intake valves on cylinders No. 1 and 2, and exhaust valves on cylinders No. 1 and 3. Rotate crankshaft clockwise 360 degrees to position cylinders No. 4 on TDC of compression stroke.
- Adjust intake valves on cylinders No. 3 and 4, and exhaust valves on cylinders No. 2 and 4. See VALVE CLEARANCE SPECIFICATIONS table.
VALVE CLEARANCE SPECIFICATIONS (1)
| Application | In. (mm) | |||
|---|---|---|---|---|
| Hot Engine | ||||
| Intake | .006 (.15) | |||
| Exhaust | .010 (.25) | |||
| Cold Engine | ||||
| Intake | .003 (.07) | |||
| Exhaust | .007 (.17) | |||
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RENDER: 1.0x
NO RELATED
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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.