Del Sol Si VTEC L4-1590cc 1.6L DOHC (VTEC) MFI (1997)
Valve Clearance: Adjustments
NOTE:
^
Valves should be adjusted when the cylinder head temperature is less than 100°F (38°C).
^
Adjustment is the same for intake and exhaust valves.
^
After adjusting, retorque the crankshaft pulley bolt to 160 Nm (130 ft. lbs.).
1. Remove the cylinder head cover.
2. Set No. 1 piston at TDC. "UP" mark on the pulley should be at the top, and TDC grooves on the pulley should align with the pointer on the back
cover. TDC grooves (white paint) on the crankshaft pulley should align with the pointer on the lower cover.
3. Adjust valve clearance on No. 1 cylinder.
^
Intake: 0.15-0.19 mm (0.006-0.007 inch)
^
Exhaust: 0.19-0.21 mm (0.007-0.008 inch)
4. Loosen the locknut and turn the adjustment screw until the feeler gauge slides back and forth with a slight amount of drag.