3. DISCONNECT ENGINE WIRE PROTECTOR FROM COWL
TOP PANEL
(a) Remove the bolt, and disconnect the ground strap.
(b) Remove the 2 bolts, and lift up the engine wire protector.
4. REMOVE IAC VALVE PIPE
(a) Disconnect the 5 air hoses from the IAC valve pipe.
(b) Remove the IAC valve pipe from the pipe clamp on the No.1
cylinder head cover.
5. REMOVE NO.1 AND NO.2 CYLINDER HEAD COVERS
(a) Disconnect the cruise control actuator cable from the cable
bracket.
(b) Remove the bolt holding the VSV to the turbo outlet duct.
(c) Disconnect the 2 PCV hoses from the cylinder head covers.
(d) Remove the 6 bolts, 2 nuts, 8 seal washers, No.1 cylinder
head cover and gasket.
(e) Remove the 6 bolts, 2 nuts, 8 seal washers, No.2 cylinder
head cover and gasket.
6. SET NO.1 CYLINDER TO TDC/COMPRESSION
(See step 4 in valve clearance inspection and adjustment
(2JZ±GE))
7. INSPECT VALVE CLEARANCE
(See step 5 in valve clearance inspection and adjustment
(2JZ±GE))
8. ADJUST VALVE CLEARANCE
(See step 6 in valve clearance inspection and adjustment
(2JZ±GE))
± ENGINEENGINE MECHANICALEG±17
(d) Using SST and a hammer, tap in a new guide bushing to the
specified protrusion height.
SST 09201±10000 (09201±01060), 09608±30022
(09608±05010)
Protrusion height:
Intake
12.3±12.7 mm (0.484±0.500 in.)
Exhaust
11.4±11.8 mm (0.449±0.465 in.)
HINT: Different bushings are used for the intake and exhaust.
(e) Using a sharp 6 mm reamer, ream the guide bushing to obtain
the standard specified clearance (See step 6) between the
guide bushing and valve stem.
7. INSPECT AND GRIND VALVES
(a) Grind the valve enough to remove pits and carbon.
(b) Check that the valve is ground to the correct valve face angle.
Valve face angle:
44.55
(c) Check the valve head margin thickness.
Standard margin thickness:
0.8±1.2 mm (0.031±0.047 in.)
Minimum margin thickness:
0.5 mm (0.020 in.)
If the margin thickness is less than minimum, replace the
valve. EG±54
± ENGINEENGINE MECHANICAL
