Sentra L4-1.8L (QG18DE) (2004)
Valve Clearance: Adjustments
ADJUSTING
Adjust valve clearance while engine is cold.
1. Turn crankshaft clockwise (viewed from front) to position cam lobe upward on camshaft for valve that must be adjusted.
2. Turn valve lifter and adjusting shim to removal direction.
Using a slotted screwdriver with an extra-thin tip, turn the valve lifter cutout in the direction shown by the arrow.
3. Place Tool (1) around camshaft as shown. Before placing Tool (1), rotate notch toward center of cylinder head. This will simplify shim removal
later.
CAUTION: Be careful not to damage camshaft and cylinder head. Be careful not to damage surroundings of valve lifter.
4. Rotate Tool (1) so that valve lifter is pushed down, compressing the spring.
5. Place Tool (2) between camshaft and valve lifter to retain valve lifter.
CAUTION: If camshaft pliers are suddenly turned back, the lifter stopper may contact and damage the camshaft journals. Turn back the camshaft pliers
carefully to remove. Tool (2) must be placed as close to camshaft bracket as possible.
Be careful not to damage cam surface with Tool (2).
6. Remove Tool (1).