Sentra L4-1.8L (QG18DE) SULEV (2003)
2. Measure the valve lifter outer diameter.
Valve lifter: ...........29.960 - 29.975 mm (1.1795 - 1.1801 inch) outer diameter
If out of the specified range, replace the valve lifter.
3. Measure the valve lifter guide bore.
Standard: ...........30.000 - 30.021 mm (1.1811 - 1.1819 inch)
4. Calculate valve lifter clearance. If out of specified range, replace valve lifter and/or cylinder head of whichever exceeds standard limit. (Valve
lifter clearance) = (valve lifter guide bore) - (outer diameter of valve lifter)
Valve lifter clearance: ...........0.025 - 0.065 mm (0.0010 - 0.0026 inch)