engine oil NISSAN PICK-UP 2004 Repair Manual

Adjustments
NOTE:
Adjust valve clearance while engine is cold.
+Remove the adjusting shim for parts which are outside the
specified valve clearance.
1. Remove the spill tube. Refer to ªBASIC SERVICE PROCE-
DUREº in EC section.
2. Rotate the crankshaft to face the cam nose for adjusting
shims that are to be removed upward.
3. Thoroughly wipe off engine oil on the upper side of the cyl-
inder head (for the air gun used in step 7).
4. Move the round hole of the adjusting shim to the front with
an extra-fine screwdriver or like that.
CAUTION:
Perform (the above procedure) while camshaft do not con-
tact with adjusting shim.
5. Grip the camshaft with camshaft pliers (SST), then using the
camshaft as a support point, push the adjusting shim down-
ward to compress the valve spring.
CAUTION:
Do not damage the camshaft, cylinder head, and the outer
circumference of the valve lifter.
6. With the valve spring in a compressed state, remove the
camshaft pliers (SST) by securely setting the outer circum-
ference of the valve lifter with the end of the lifter stopper
(SST).
+Hold the lifter stopper by hand until the shim is removed.
CAUTION:
Do not retrieve the camshaft pliers forcefully, as the cam-
shaft will be damaged.
7. Remove the adjusting shim from the valve lifter by blowing
air through the round hole of the adjusting shim with an air
gun.
CAUTION:
+When blowing, use goggles to protect your eye.
+To prevent any remaining oil from being blown around,
thoroughly wipe the area clean.
PBIC0373E
FEM029A
PBIC0374E
VALVE CLEARANCE INSPECTIONS AND ADJUSTMENTSZD
EM-6005