adding oil TOYOTA SUPRA 1997 Service Repair Manual

P04470
Z02391
1, 2, 3, 4 or 5Mark
1, 2, or 3 Mark
0, 1 or 2 Mark
No. 1
No. 2
No. 3No. 4No. 6
No. 5
Connecting rod cap
Crankshaft
Use bearingNumber mark
Connecting rod cap º3º +Crankshaft º1º EXAMPLE:
= Total number 4 (Use bearing º4º)0123
12312
01 2
4 2301 2
4 35
- ENGINE MECHANICAL (2JZ-GTE)CYLINDER BLOCK
EM-73
1178 Author
: Date
:
1997 SUPRA (RM502U)
(i) Measure the Plastigage at its widest point.
Standard oil clearance:
STD 0.023 - 0.041 mm (0.0009 - 0.0016 in.)
U/S 0.25 0.028 - 0.066 mm (0.0011 - 0.0026 in.)
Maximum oil clearance.
STD 0.07 mm (0.0027 in.)
U/S 0.25 0.08 mm (0.0031 in.)
If the oil clearance is greater than maximum, replace the bear-
ings. If necessary, grind or replace the crankshaft.
HINT:
If using a standard bearing, replace with one having the same
number. If the number of the bearing cannot be determined, se-
lect the correct bearing by adding together the numbers im-
printed on the connecting rod cap and crankshaft, then select-
ing the bearing with the same number as the total. There are 5
sizes of standard bearings, marked º1º, º2º, º3º, º4º and º5º ac-
cordingly.
Reference:
Connecting rod big end inside diameter:
Mark º1º55.025 - 55.031 mm (2.1663 - 2.1666 in.)
Mark º2º55.031 - 55.037 mm (2.1666 - 2.1668 in.)
Mark º3º55.037 - 55.043 mm (2.1668 - 2.1670 in.)
Crankshaft crank pin diameter:
Mark º0º51.994 - 52.000 mm (2.0470 - 2.0472 in.)
Mark º1º51.988 - 51.994 mm (2.0468 - 2.0470 in.)
Mark º2º51.982 - 51.988 mm (2.0465 - 2.0468 in.)
Bearing center wall thickness:
Mark º1º1.498 - 1.501 mm (0.0590 - 0.0591 in.)
Mark º2º1.501 - 1.504 mm (0.0591 - 0.0592 in.)
Mark º3º1.504 - 1.507 mm (0.0592 - 0.0593 in.)
Mark º4º1.507 - 1.510 mm (0.0593 - 0.0594 in.)
Mark º5º1.510 - 1.513 mm (0.0594 - 0.0596 in.)
(j) Completely remove the Plastigage.

Z02701
1, 2, 3, 4 or 5Mark 0, 1, 2, 3, 4 Mark
No. 1
No. 2
No. 3
No. 4No. 6
No. 5No. 7
No. 1
No. 2
No. 3
No. 4No. 6
No. 5No. 7 5, 6 or 7
0, 1, 2, 3, 4 Mark
5, 6 or 7 (A)
(B)Cylinder block (A)
Cankshaft (B) =+
Use bearingTotal number º º:Number mark
0 - 2
3 - 56 - 8 9 - 11 12 - 14Cylinder block º3º (A) + Crankshaft º4º(B)
= Total number 7 (Use bearing º3º) EXAMPLE:º1º º2º º3º º4º º5º
Cylinder block number mark Crankshaft
number mark
0123
456
7
11 12223 3
11 22233 3
12 22333 4
222333 44
53334455
33 34455 5
33 44555 5
0
1
2
3
4
2
22 33 3 44 4
6
7
Cylinder block º3º Crankshaft º4º
= Use bearing º3º EXAMPLE: EM-76
- ENGINE MECHANICAL (2JZ-GTE)CYLINDER BLOCK
1181 Author
: Date
:
1997 SUPRA (RM502U)
If the oil clearance is greater than maximum, replace the bear-
ings. If necessary, grind or replace the crankshaft.
HINT:
If using a standard bearing, replace with one having the same
number. If the number of the bearing cannot be determined, se-
lect the correct bearing by adding together the numbers im-
printed on the cylinder block and crankshaft, then refer to the
table below for the appropriate bearing number. There are 5
sizes of standard bearings, marked º1º, º2º, º3º, º4º and º5º ac-
cordingly.
Standard sized bearing selection chart

EM0A8-02
P12302Compression Tester
- ENGINE MECHANICAL (2JZ-GTE)COMPRESSION
EM-3
1108 Author
: Date
:
1997 SUPRA (RM502U)
COMPRESSION
INSPECTION
HINT:
If there is lack of power, excessive oil consumption or poor fuel
economy, measure the compression pressure.
1. WARM UP AND STOP ENGINE
Allow the engine to warm up to normal operating temperature.
2. DISCONNECT CAMSHAFT POSITION SENSOR
CONNECTORS
3. REMOVE IGNITION COILS ASSEMBLIES
(See page IG-6)
4. REMOVE SPARK PLUGS
5. CHECK CYLINDER COMPRESSION
(a) Insert a compression tester into the spark plug hole.
(b) While cranking the engine, measure the compression
pressure.
HINT:
Always use a fully charged battery to obtain engine revolutions
of 250 rpm or more.
(c) Repeat steps (a) through (b) for each cylinder.
NOTICE:
This measurement must be done in as short a time as pos-
sible.
Standard pressure:
1,079 kPa (11.0 kgf/cm
2, 156 psi) or more
Minimum pressure:
883 kPa (9.0 kgf/cm
2, 128 psi)
Difference between each cylinder:
98 kPa (1.0 kgf/cm
2, 14 psi) or less
(d) If the cylinder compression in 1 or more cylinders is low,
pour a small amount of engine oil into the cylinder through
the spark plug hole and repeat steps (a) through (b) for
the cylinder with low compression.

If adding oil helps the compression, it is likely that
the piston rings and/or cylinder bore are probably
worn or damaged.

If pressure stays low, a valve may be sticking or
seating improper, or there may be leakage past the
gasket.
6. REINSTALL SPARK PLUGS
7. REINSTALL IGNITION COILS ASSEMBLIES
(See page IG-7)
8. RECONNECT CAMSHAFT POSITION SENSOR
CONNECTORS