Toyota 4-Runner 1985 Repair Manual page 46

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ENGINE MECHANICAL - Cylinder Head
DISASSEMBLY OF CYLINDER HEAD
(See page EM-12)
EM-17
1. REMOVE INTAKE MANIFOLD WITH DELIVERY PIPE AND
INJECTION NOZZLE
(a) Remove the six bolts, one hexagon bolt and two nuts.
(b) Remove the intake manifold together with the deliv-
ery pipe and the injection nozzles.
2. REMOVE EGR VALVE WITH VACUUM MODULATOR
FROM CYLINDER HEAD
3. REMOVE EXHAUST MANIFOLD FROM CYLINDER HEAD
4. MEASURE CAMSHAFT THRUST CLEARANCE
Using a feeler gauge, measure the camshaft thrust
clearance between the thrust bearing and camshaft.
If clearance is greater than the maximum, replace the head.
Maximum clearance: 0.25 mm (0.010 in.)
Standard clearance: 0.08 - 0.18 mm
(0.003 - 0.007 in.)
5. REMOVE CAM BEARING CAPS AND SHAFT
6. REMOVE VALVES
(a) Using SST, compress the valve retainer until the two
SST
keepers can be removed.
SST 09202-43013
(b) Remove the valve keepers, retainers, springs and
valves.
(c) Remove the valve seals.
(d) Using a small screwdriver or magnet, remove the valve
spring seats.
NOTE: Keep the valves arranged so they can be install-
ed in the same order as removed.