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.

1998 Acura 2.3CL StandardFACTORY OEM SERVICE PROCEDURE

Valve Clearance

VALVE CLEARANCE ADJUSTMENT ⁽¹⁾

Application

In. (mm)

Integra ⁽²⁾

B18B1 Engine

Intake

.003-.005 (.08-.12)

Exhaust

.006-.008 (.16-.20)

B18C1 & B18C5 Engine

Intake

.006-.007 (.15-.19)

Exhaust

.007-.008 (.17-.20)

2.3CL ⁽³⁾

Intake

.009-.011 (.23-.28)

Exhaust

.011-.013 (.28-.33)

2.5TL

Intake

.009-.011 (.23-.28)

Exhaust

.011-.013 (.28-.33)

3.0CL

Intake

.008-.009 (.20-.23)

Exhaust

.011-.013 (.28-.33)

3.2TL & 3.5RL

⁽⁴⁾

⁽¹⁾	Adjust valves when engine is cold.

⁽²⁾	Measured between camshaft and rocker arm.

⁽³⁾	Adjustment necessary only if noisy.

⁽⁴⁾	Equipped with hydraulic lifters, no adjustment is necessary.

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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