Toyota Land Cruiser 1988 Repair Manual page 60

ENGINE MECHANICAL- Cylinder Head
EM-29
EM4486
Front • First
EM1519
\.~
EM1520
Front . . Second
EM1519
4. ADJUST VALVE CLEARANCE
(a) Set the No. 1 cylinder to TDC/ compression.
• Align the TDC mark of the drive plate with the
timing pointer by turning the crankshaft clock-
wise with a wrench.
• Check that the rocker arms on the No. 1 cylinder
are loose and rocker arms on the No. 6 are tight.
If not, turn the crankshaft one revolution (360°) and align
the mark as above.
(b) Adjust only those valves indicated by arrows.
Valve clearance:
Intake
0.20 mm (0.008
in.)
Exhaust
0.35 mm (0.014
in.)
NOTE: After warm up, readjust the valve clearance.
• Using a thickness gauge, measure the valve clear-
ance between the valve stem and rocker arm.
Loosen the lock nut and turn the adjusting screw
to set the proper clearance.
Hold the adjusting screw in position and tighten
the lock nut.
• Recheck the valve clearance. The thickness
gauge should slide with a very slight drag.
(c) Turn the crankshaft pulley one revolution (360°)
and align the mark as above.
Adjust only the valves indicated by arrows.
5.
INSTALL SPARK PLUGS
6. INSTALL CYLINDER HEAD COVER
(a) Install a new gasket to the cylinder head cover.
(b) Install the cylinder head cover with four seal washer
and cap nuts.
Torque: 90 kg-em (78 in.-lb, 8.8 N ·m)