Removal Of Cylinder Head

1. REMOVE AIR INTAKE CONNECTOR

(a) Disconnect the No. 1 air hose from the air intake connector.

(b) Remove the two clamp bolts.

(c) Loosen the throttle body hose clamp and remove the air intake connector and the connector pipe.

2. DISCONNECT FOLLOWING HOSES:

(a) No. 1 water by-pass hose from ISC valve.

(b) No. 2 water by-pass hose from throttle body.

(c) Two PCV hoses from the cylinder head cover.

(d) Fuel hose from the fuel hose support.

(e) Label and disconnect the emission control hoses from the throttle body and air intake chamber to allow removal of the cylinder head.

3. REMOVE AIR INTAKE CHAMBER STAY

4. REMOVE VACUUM PIPE SUBASSEMBLY

Remove the bolts and remove the vacuum pipe and ground strap.

5. REMOVE DISTRIBUTOR FROM CYLINDER HEAD

(a) Remove the high-tension cord clip bolt, leaving the wires attached to the clips.

(b) Disconnect the high tension cord by pulling on the plug boot.

(c) Remove the distributor holding bolt.

(d) Remove the distributor from the cylinder head with the cap and wires.

6. REMOVE SPARK PLUGS

7. DISCONNECT FOLLOWING WIRES:

(a) Cold start injector wire

(b) Water temp, sensor wire

(c) Start injection time switch wire

(d) Water temp, sending unit wire

(e) Throttle position sensor wire connector

(f) ISC valve wire connectors

8. DISCONNECT COLD START INJECTOR FUEL HOSE FROM DELIVERY PIPE

9. REMOVE AIR INTAKE CHAMBER

(a) Remove the five bolts and two nuts.

(b) Loosen the nut of the EGR pipe.

(c) Remove the air intake chamber and gasket.

10. DISCONNECT EFI WIRE HARNESS FROM ECU

(a) Remove the glove box.

(c) Disconnect the three connectors.

(d) Pull out the EFI wire harness out through the cowl panel.

11. REMOVE PULSATION DAMPER AND NO. 1 FUEL PIPE

12. REMOVE WATER OUTLET HOUSING

(a) Loosen the clamp and disconnect the water by-pass hose.

(b) Remove the two bolts and remove the outlet housing.

Removing Intake Manifold Supra Mk3

13. REMOVE INTAKE MANIFOLD

Remove the eight bolts and two nuts holding the intake manifold and remove the intake manifold and gasket.

14. REMOVE POWER STEERING PUMP FROM BRACKET

(a) Remove the PS pump pulley with the drive belt.

(b) Remove the PS pump stay.

<c> Remove the PS pump from the bracket.

<d) Lay the PS pump to one side without disconnecting the hoses.

15. REMOVE EXHAUST MANIFOLD

(a) Remove the five nuts and the two heat insulators.

(b) Remove seven nuts and the exhaust manifold.

16. REMOVE TIMING BELT AND CAMSHAFT TIMING PULLEYS (See steps 9 to 13 on page EM-12)

17. REMOVE OIL PRESSURE REGULATOR

(a) Remove the two bolts and the timing belt cover stay.

(b) Remove the three bolts snd the oil pressure regulator and gasket.

18. REMOVE NO. 2 TIMING BELT COVER

Remove the three bolts and two nuts and the No. 2 timing belt cover and gasket.

GLJ 1 3

IWI44Î

CM 1443.

IM 1444

Lash Adjuster

Rocker Arm

Lash Adjuster

Rocker Arm

Toyota Supra Lash Adjuster

19. REMOVE CYLINDER HEAD BOLTS

Using SST, remove the fourteen head bolts gradually in two or three passes and in the numerical order shown.

SST 09043-38100

CAUTION: Head warpage or cracking could result from removing in incorrect order.

20. REMOVE CYLINDER HEAD

Lift the cylinder head from the dowels on the cylinder block and place the head on wooden blocks on a bench.

If the cylinder head is difficult to lift off, pry with a screwdriver between the head and block saliences.

CAUTION: Be careful not to damage the cylinder head and block surfaces on the cylinder head gasket side.

21. REMOVE EGR COOLER

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