Valve Clearance Adjustment
NOTE:
Valve clearance can be adjusted with engine cold or hot.
- On California models, disconnect battery. On all models, remove air cleaner assembly and valve cover. Rotate crankshaft until No. 1 cylinder is at TDC of compression stroke. Ensure timing "V" mark on crankshaft pulley aligns with "0" mark on timing belt cover.
- Remove distributor cap. Ensure rotor aligns with No. 1 distributor terminal. If rotor is not aligned with No. 1 distributor terminal, rotate crankshaft pulley clockwise 360 degrees.
- Measure clearance between adjustment screw and valve stem using a feeler gauge. Check clearance of intake valve(s) of cylinders No. 1 and 2, and exhaust valve(s) of cylinders No. 1 and 3.
- Rotate crankshaft clockwise 360 degrees. Check clearance of intake valve(s) of cylinders No. 3 and 4, and exhaust valve(s) of cylinders No. 2 and 4.
- Adjust valve clearance if not within specification. See VALVE CLEARANCE SPECIFICATIONS table. Adjust clearance by loosening adjusting screw lock nut and rotating adjusting screw. Tighten adjusting screw lock nut to 13 ft. lbs. (18 N.m) while holding adjusting screw.
VALVE CLEARANCE SPECIFICATIONS
| Valve |
Hot: In. (mm) |
Cold: In. (mm) |
| 8-Valve |
| Intake |
.009-.011 (.23-.28) |
.005-.007 (.13-.18) |
| Exhaust |
.010-.011 (.25-.28) |
.006-.008 (.15-.20) |
| 16-Valve |
| Intake |
.007-.008 (.18-.20) |
.005-.007 (.13-.18) |
| Exhaust |
.007-.008 (.18-.20) |
.005-.007 (.13-.18) |