1997 TOYOTA SUPRA spark plugs replace

IG0147
Megger
Ground
N00917
Z00032
1.1mm IG-2
- IGNITION (2JZ-GTE)IGNITION SYSTEM
1496 Author
: Date
:
1997 SUPRA (RM502U)
2. INSPECT SPARK PLUGS
NOTICE:

Never use a wire brush for cleaning.

Never attempt to adjust the electrode gap on used a
spark plug.

Spark plugs should be replaced every 100,000 km
(60,000 miles).
(a) Remove the ignition coils assemblies.
(See page IG-6)
(b) Inspect the electrode.
Using a megger (insulation resistance meter), measure
the insulation resistance.
Standard correct insulation resistance:
10 MW or more
If the resistance is less than specified, proceed to step (c).
HINT:
If a megger is not available, the following simple method of in-
spection provides fairly accurate results.
Simple Method:

Quickly race the engine 5 times to 4,000 rpm.

Remove the spark plug.

Visually check the spark plug.
If the electrode is dry ... OK
If the electrode is wet ... Proceed to step (d).

Reinstall the spark plug.
(c) Using a 16 mm plug wrench, remove the 6 spark plugs.
(d) Visually check the spark plug for thread damage and insu-
lator damage.
If abnormal, replace the spark plug.
Recommended spark plug:
DENSO madePK20R11
NGK madeBKR6EP11
(e) Inspect the electrode gap.
Maximum electrode gap for used spark plug:
1.3 mm (0.051 in.)
If the gap is greater than maximum, replace the spark plug.
Correct electrode gap for new spark plug:
1.1 mm (0.043 in.)
NOTICE:
If adjusting the gap of a new spark plug, bend only the base
of the ground electrode. Do not touch the tip. Never attempt
to adjust the gap on the used plug.

IG0152
P11795
Ohmmeter
P12177
Ohmmeter
- IGNITION (2JZ-GTE)IGNITION SYSTEM
IG-3
1497 Author
: Date
:
1997 SUPRA (RM502U)
(f) Clean the spark plugs.
If the electrode has traces of wet carbon, allow it to dry and then
clean with a spark plug cleaner.
Air pressure: Below 588 kPa (6 kgf/cm
2, 85 psi)
Duration: 20 seconds or less
HINT:
If there are traces of oil, remove it with gasoline before using the
spark plug cleaner.
(g) Using a 16 mm plug wrench, reinstall the 6 spark plugs.
Torque: 18 N´m (180 kgf´cm, 13 ft´lbf)
(h) Reinstall the ignition coils assemblies.
(See page IG-7)
3. INSPECT IGNITION COILS
(a) Remove the No.3 timing belt cover.
(b) Disconnect the ignition coil connectors.
(c) Using an ohmmeter, measure the resistance between the
terminals.
Primary coil resistance:
Cold0.54 - 0.84 W
Hot0.68 - 0.98 W
If the resistance is not as specified, replace the ignition coil.
(d) Reconnect the ignition coil connectors.
(e) Reinstall the No.3 timing belt cover.
4. INSPECT CAMSHAFT POSITION SENSORS
(a) Disconnect the camshaft position sensor connectors.
(b) Using an ohmmeter, measure the resistance between ter-
minals.
Resistance:
Cold835 - 1,400 W
Hot1,060 - 1,645 W
If the resistance is not as specified, replace the camshaft posi-
tion sensor.

MA0688
MA01G-01
- MAINTENANCEENGINE
MA-5
42 Author
: Date
:
1997 SUPRA (RM502U)
ENGINE
INSPECTION
1. REPLACE TIMING BELT
(2JZ-GE: See page EM-17)
(2JZ-GTE: See page EM-19)
2. INSPECT DRIVE BELT
(See page CH-2)
3. REPLACE SPARK PLUGS
(2JZ-GE: See page IG-1)
(2JZ-GTE: See page IG-1)
4. INSPECT AIR FILTER
(a) Remove the air filter.
(b) Visually check that the air filter is not excessively dam-
aged or oily.
If necessary, replace the air filter.
(c) Clean the filter with compressed air.
First blow from the inside thoroughly, then blow off the
outside of the filter.
(d) Reinstall the air filter and air cleaner case.
5. REPLACE AIR FILTER
Replace the air filter with a new one.
6. REPLACE ENGINE OIL AND OIL FILTER
(See page LU-4)
7. REPLACE ENGINE COOLANT
(See page CO-2)
8. INSPECT CHARCOAL CANISTER
(2JZ-GE: See page EC-5)
(2JZ-GTE: See page EC-5)
9. REPLACE GASKET IN FUEL TANK CAP
(2JZ-GE: See page EC-5)
(2JZ-GTE: See page EC-5)
10. INSPECT FUEL LINES AND CONNECTIONS
(2JZ-GE: See page SF-32)
(2JZ-GTE: See page SF-34)
11. INSPECT EXHAUST PIPES AND MOUNTINGS
Visually check the pipes, hangers and connections for severe
corrosion, leaks or damages.
12. ADJUST VALVE CLEARANCE
(2JZ-GE: See page EM-4)
(2JZ-GTE: See page EM-4)