Page 1288 of 1807
P02129
Z09528
P02136
EM0580
EM-36
- ENGINE MECHANICAL (2JZ-GTE)CYLINDER HEAD
1141 Author: Date:
1997 SUPRA (RM502U)
5. CLEAN CYLINDER HEAD
Using a soft brush and solvent, thoroughly clean the cylinder
head.
6. INSPECT FOR FLATNESS
Using precision straight edge and feeler gauge, measure the
surfaces contacting the cylinder block, intake and exhaust
manifolds for warpage.
Maximum warpage: 0.10 mm (0.0039 in.)
If warpage is greater than maximum, replace the cylinder head.
7. INSPECT FOR CRACKS
Using a dye penetrant, check the combustion chamber, intake
ports, exhaust ports and cylinder block surface for cracks.
If cracked, replace the cylinder head.
8. CLEAN VALVES
(a) Using a gasket scraper, chip off any carbon from the valve
head.
(b) Using a wire brush, thoroughly clean the valve.
Page 1292 of 1807
P04463
EM2011
EM2538
P02141
P02360
Plastigage EM-40
- ENGINE MECHANICAL (2JZ-GTE)CYLINDER HEAD
1145 Author: Date:
1997 SUPRA (RM502U)
13. INSPECT CAMSHAFT FOR RUNOUT
(a) Place the camshaft on V-blocks.
(b) Using a dial indicator, measure the circle runout at the
center journal.
Maximum circle runout: 0.08 mm (0.0031 in.)
If the circle runout is greater than maximum, replace the cam-
shaft.
14. INSPECT CAM LOBES
Using a micrometer, measure the cam lobe height.
Standard cam lobe height:
Intake 44.570 - 44.670 mm (1.7547 - 1.7587 in.)
Exhaust 44.770 - 44.870 mm (1.7626 - 1.7665 in.)
Maximum cam lobe height:
Intake 44.42 mm (1.7488 in.)
Exhaust 44.62 mm (1.7567 in.)
If the cam lobe height is less than minimum, replace the cam-
shaft.
15. INSPECT CAMSHAFT JOURNALS
Using a micrometer, measure the journal diameter.
Journal diameter:
28.949 - 28.965 mm (1.1397 - 1.1404 in.)
If the journal diameter is not as specified, check the oil clear-
ance.
16. INSPECT CAMSHAFT BEARINGS
Check the bearings for flaking and scoring.
If the bearings are damaged, replace the bearing caps and cyl-
inder head as a set.
17. INSPECT CAMSHAFT JOURNAL OIL CLEARANCE
(a) Clean the bearing caps and camshaft journals.
(b) Place the camshafts on the cylinder head.
(c) Lay a strip of Plastigage across each of the camshaft jour-
nals.
Page 1297 of 1807
EM0AL-02
P0218510 mm Adhesive Width
2 - 3 mm
Adhesive
Z08040
Protrusion
P12307
(4) (3) (2) (1)
EM0645
Upward
Wide
Narrow
- ENGINE MECHANICAL (2JZ-GTE)CYLINDER HEAD
EM-45
1150 Author: Date:
1997 SUPRA (RM502U)
REASSEMBLY
HINT:
Thoroughly clean all parts to be assembled.
Before installing the parts, apply fresh engine oil to all slid-
ing and rotating surfaces.
Replace all gaskets and oil seals with new ones.
1. INSTALL HEATER UNION
HINT:
When using a new cylinder head, a new heater union must be
installed.
(a) Apply adhesive to the end of the heater union as shown
in the illustration.
Adhesive:
Part No. 08833-00070, THREE BOND 1324
or equivalent
(b) Using a wooden block and hammer, tap in a new heater
union, leaving standard position protruding from the cylin-
der head.
Standard protrusion:
48 mm (1.89 in.)
NOTICE:
Do not tap it in too far.
2. INSTALL VALVES
(a) Install a new oil seal on the valve guide bushing.
(b) Install these parts:
(1) Valve
(2) Spring seat
(3) Valve spring
(4) Spring retainer
NOTICE:
Confirm the correct direction of the valve spring.
Page 1299 of 1807
EM0AM-02
P02111
Z02387
10 mm
Bi-Hexagon
Wrench
12
14 1013
11 84
6125
379
P02424
Painted Mark
Front
P02425
Painted Mark
90°
90°90°
90°
- ENGINE MECHANICAL (2JZ-GTE)CYLINDER HEAD
EM-47
1152 Author: Date:
1997 SUPRA (RM502U)
INSTALLATION
1. PLACE CYLINDER HEAD ON CYLINDER BLOCK
(a) Place a new cylinder head gasket in position on the cylin-
der block.
NOTICE:
Be sure to install it correctly.
(b) Place the cylinder head in position on the cylinder head
gasket.
2. INSTALL CYLINDER HEAD BOLTS
HINT:
The cylinder head bolts are tightened in 2 progressive
steps (steps (c) and (f)).
If any of bolts break or deform, replace them.
(a) Apply a light coat of engine oil on the threads and under
the heads of the cylinder head bolts.
(b) Install the 14 plate washers to each cylinder head bolt.
(c) Using a 10 mm bi-hexagon wrench, uniformly tighten the
cylinder head bolts, in several passes, in the sequence
shown.
Torque: 34 N´m (350 kgf´cm, 25 ft´lbf)
If any of the bolts do not meet the torque specification, replace
the bolt.
(d) Mark the front of the cylinder head bolt head with paint.
(e) Retighten the cylinder head bolts by 90° in the numerical
order shown in the illustration on previous page.
(f) Retighten cylinder head bolts by an additional 90° shown
in the illustration on previous page.
(g) Check that the painted mark is now turned to the rear.
Page 1304 of 1807
P12114
EM-52
- ENGINE MECHANICAL (2JZ-GTE)CYLINDER HEAD
1157 Author: Date:
1997 SUPRA (RM502U)
12. INSTALL FUEL INLET PIPE
(a) Connect the fuel inlet pipe with 2 new gaskets and the
union bolt.
Torque: 42 N´m (420 kgf´cm, 30 ft´lbf)
(b) Install the clamp bolt to the intake manifold.
13. INSTALL FUEL PRESSURE PULSATION DAMPER
(See page SF-32)
14. INSTALL PRESSURE TANK AND VSV ASSEMBLY
Torque: 21 N´m (210 kgf´cm, 15 ft´lbf)
15. CONNECT ENGINE WIRE
(a) Install the engine wire protector to the intake manifold
with the nut.
(b) Install the 2 ground straps to the intake manifold with the
bolts.
(c) Connect these connectors and clamps:
VSV connector for EVAP
6 injectors connectors
HINT:
The No.1, No.3 and No.5 injector connectors are dark gray, and
the No.2, No.4 and No.6 injector connectors are gray.
2 camshaft position sensor connectors
3 engine wire clamps to injector holders
16. INSTALL AIR INTAKE CHAMBER ASSEMBLY
(See page SF-29)
17. CONNECT FUEL RETURN HOSE
18. INSTALL PS PUMP
Torque: 58 N´m (590 kgf´cm, 43 ft´lbf)
19. INSTALL NO.1 WATER BYPASS PIPE AND
WATER OUTLET
(a) Install 2 new O-rings to the No.1 water bypass pipe.
(b) Apply soapy water to the O-rings.
(c) Install the No.1 water bypass pipe to the water pump.
(d) Install a new gasket and the water outlet with the 2 bolts.
Torque: 21 N´m (210 kgf´cm, 15 ft´lbf)
(e) Connect the ECT sensor and sender gauge connectors.
(f) Connect the upper radiator hose to the water outlet.
20. INSTALL DRIVE BELT
Install the drive belt by turning the drive belt tensioner clock-
wise.
21. M/T:
INSTALL DRIVE BELT TENSIONER DAMPER
(See page EM-21)
Page 1311 of 1807
P11919
P11910
Starter
WireDisconnect
P11643
Fuel Inlet Hose
P12534Fuel Return Hose
P11642
(2)
(1)
- ENGINE MECHANICAL (2JZ-GTE)ENGINE UNIT
EM-59
1164 Author: Date:
1997 SUPRA (RM502U)
(c) Disconnect the connector from the engine room main
wire.
(d) Disconnect the engine wire from the 2 wire clamps.
(e) Remove the rubber cap and nut, and disconnect the gen-
erator wire.
(f) Disconnect the wire clamp and PS solenoid valve con-
nector.
(g) Remove the bolt and disconnect the ground strap from
the cylinder block.
(h) Disconnect the starter wire from the LH engine mounting
bracket.
(i) Remove the rubber cap and nut, and disconnect the start-
er wire.
15. DISCONNECT FUEL HOSES
(a) Remove the union bolt and 2 gaskets, and disconnect the
fuel inlet hose.
HINT:
Put a suitable container or shop rag under the fuel pipe
support.
Slowly loosen the union bolt.
(b) Suspend the hose union end upward.
(c) Disconnect the fuel return hose from the clamp of the dip-
stick guide.
(d) Disconnect the fuel return hose from the fuel return pipe.
Plug the hose end.
16. DISCONNECT PS PUMP WITHOUT
DISCONNECTING HOSES
(a) Disconnect these hoses:
(1) PS air hose from throttle body
(2) PS air hose from air intake chamber
(b) Remove the 2 bolts, and disconnect the vane pump from
the pump bracket.
HINT:
Put aside the vane pump, and suspend it securely.
(c) Remove the 3 bolts and pump bracket.
Page 1315 of 1807
Z16732
A/T
Z16722
M/T
P11526
P11500
P11531
- ENGINE MECHANICAL (2JZ-GTE)ENGINE UNIT
EM-63
1168 Author: Date:
1997 SUPRA (RM502U)
29. A/T:
DISCONNECT TRANSMISSION CONTROL ROD
Remove the nut, and disconnect the control rod from the shift
lever.
30. M/T:
REMOVE TRANSMISSION SHIFT LEVER
(a) Remove the bolt and nut.
(b) Remove the transmission shift lever, inside of vehicle.
31. PLACE JACK UNDER TRANSMISSION
NOTICE:
Be sure to put a wooden block between the jack and the
transmission oil pan to prevent damage (A/T).
32. REMOVE REAR SUPPORT MEMBER
(a) Remove the 4 nuts holding the member to the engine rear
mounting insulator.
(b) Remove the 4 bolts and rear support member.
33. REMOVE ENGINE AND TRANSMISSION ASSEMBLY
FROM VEHICLE
(a) Attach the engine hoist chain to the 2 engine hangers.
(b) Remove the 2 nuts holding the engine front mounting in-
sulators to the front suspension crossmember.
Page 1317 of 1807
Z16735
A/T
EM0AW-03
Z09545
M/T
A/T
P13200
P13202
Z16756
M/T
Matchmarks
- ENGINE MECHANICAL (2JZ-GTE)ENGINE UNIT
EM-65
1170 Author: Date:
1997 SUPRA (RM502U)
INSTALLATION
1. A/T:
CHECK TORQUE CONVERTER CLUTCH
INSTALLATION
Using calipers and straight edge, measure from the installed
surface of the torque converter clutch to the front surface of the
transmission.
Correct distance: Less than 0.1 mm (0.004 in.)
If the distance is not as specified, check for an improper installa-
tion.
2. ASSEMBLE ENGINE AND TRANSMISSION
(a) M/T:
Align the input spline with the clutch disc and install the
transmission to the engine.
(b) Align the 2 knock pins on the cylinder block with the pin
holes of the clutch housing.
(c) Install the transmission with the 6 bolts.
Torque:
14 mm head 39 N´m (400 kgf´cm, 29 ft´lbf)
17 mm head 72 N´m (730 kgf´cm, 43 ft´lbf)
3. M/T:
INSTALL CLUTCH COVER SET BOLTS
(a) Align the matchmarks.
(b) Install the 6 bolts while turning the crankshaft to gain ac-
cess. Tighten the bolts evenly.
Torque: 19 N´m (195 kgf´cm, 14 ft´lbf)
(c) Install the service hole cover with the 2 bolts.
Torque: 12 N´m (120 kgf´cm, 9 ft´lbf)
