1986 TOYOTA CAMRY V20 check oil

3. INSPECT SLIP RINGS
(a) Check that the slip rings are not rough or scored.
If rough or scored, replace the rotor.
(b) Using calipers, measure the slip ring diameter.
Standard diameter. 14.2 ±14.4 mm
(0.559 ± 0.567 in.)
Minimum diameter 12.8 mm (0.504 in.)
If the diameter is less than minimum, replace the rotor.
Brushes
1. INSPECT EXPOSED BRUSH LENGTH
Using a scale, measure the exposed brush length.
Standard exposed length: 10.5 mm (0.413 in,)
Minimum exposed length: 1 .5 mm (0.069 in.)
If the exposed length is less than minimum, replace the
brushes.
Stator
1. INSPECT STATOR FOR OPEN CIRCUIT
Using an ohmmeter, check that there is continuity between
the coil leads.
If there is no continuity, replace the drive end frame assem-
bly.2. INSPECT ROTOR FOR GROUND
Using an ohmmeter, check that there is no continuity
between the slip ring and rotor.
If there is continuity, replace the rotor.
2. INSPECT STATOR FOR GROUND
Using an ohmmeter, check that there is no continuity be-
tween the coil lead and drive end frame.
If there is continuity, replace the drive end frame assembly.
± CHARGING SYSTEMAlternatorCH±9

The cooling system is composed of the water jacket (inside the cylinder block and cylinder head), radiator,
water pump, thermostat, electric fan, hoses and other components.
Coolant which is heated in the water jacket is pumped to the radiator, through which an electric fan blows air
to cool the coolant as it passes through. Coolant which has been cooled is then sent back to the engine by
the water pump, where it cools the engine.
The water jacket is a network of channels in the shell of the cylinder block and cylinder head through which
coolant passes. It is designed to provide adequate cooling of the cylinders and combustion chambers which
become heated during engine operation.
RADIATOR
The radiator performs the function of cooling the coolant which has passed through the water jacket and be-
come hot, and it is mounted in the front of the vehicle. The radiator consists of an upper tank and lower tank,
and a core which connects the two tanks. The upper tank contains the inlet for coolant from the water jacket
and the filler inlet. It also has a hose attached through which excess coolant or steam can flow. The lower
tank has an outlet and drain cock for the coolant. The core contains many tubes through which coolant flows
from the upper tank to the lower tank as well as cooling fins which radiate heat away from the coolant in the
tubes.
The air sucked through the radiator by the electric fan, as well as the wind generated by the vehicle's travel,
passes through the radiator, cooling the coolant. Models with automatic transmission include an automatic
transmission fluid cooler built into the lower tank of the radiator. A fan with an electric motor is mounted be-
hind the radiator to assist the flow of air through the radiator. The fan operates when the coolant tempera-
ture becomes high in order to prevent it from becoming too high.
RADIATOR CAP
The radiator cap is a pressure type cap which seals the radiator, resulting in pressurization of the radiator as
the coolant expands. The pressurization prevents the coolant from boiling even when the coolant tempera-
ture exceeds 100°C (212°F). A relief valve (pressurization valve) and a vacuum valve (negative pressure
valve) are built into the radiator cap. The relief valve opens and lets steam escape through the overflow pipe
when the pressure generated inside the cooling system exceeds the limit (coolant temperature: 110 ±
120°C, 230 ± 248°F, pressure; 0.3 ±1.0 kg/cm
2, 4.3 ±14.2 psi, 29.4 ± 98.1 kPa). The vacuum valve opens to
alleviate the vacuum which develops in the coolant system after the engine is stopped and the coolant tem-
perature drops.
The valves's opening allows the coolant in the reservoir tank to return to the cooling system.
RESERVOIR TANK
The reservoir tank is used to catch coolant which overflows the cooling system as a result of volumetric ex-
pansion when the coolant is heated. The coolant in the reservoir rank returns to the radiator when the cool-
ant temperature drops, thus keeping the radiator full at all times and avoiding needless coolant loss. Check
the reservoir tank level to find out if the coolant needs to be replenished.
WATER PUMP
The water pump is used for forced circulation of coolant through the cooling system. It is mounted on the
front of the cylinder block and driven by a timing belt.
THERMOSTAT
The thermostat has a wax type by±pass valve and is mounted in the water inlet housing. The thermostat in-
cludes a type of automatic valve operated by fluctuations in the coolant temperature. This valve closes when
the coolant temperature drops, preventing the circulation of coolant through the engine and thus permitting
the engine to warm up rapidly. The valve opens when the coolant temperature has risen, allowing the cir-
culation of coolant. Wax inside the thermostat expands when heated and contracts when cooled. Heating
the wax thus generates pressure which overpowers the force of the spring which keeps±the valve closed,
thus opening the valve. When the wax cools, its contraction causes the force of the spring to take effect
once more, closing the valve. The thermostat in this engine operates at a temperature of 82°C (180°F).
± COOLING SYSTEMDescriptionCO±3

3. (3S±FE)
REPLACE ENGINE COOLANT
(a) Remove the radiator cap.
CAUTION: To avoid the danger of being burned, do not re-
move it while the engine and radiator are still hot
as fluid and steam can be blown out under pressure.
(b) Drain the coolant from the .radiator and engine drain cocks.
(Engine drain cock at the right rear of engine block.)
(c) Close the drain cocks.
Torque (Engine drain cock):
130 kg±cm (9 ft±Ib, 13 N±m) HINT: If the engine tends to overheat, removal of the
thermostat will adversely effect cooling efficiency.
CHECK AND REPLACEMENT OF
ENGINE COOLANT
1. CHECK ENGINE COOLANT LEVEL AT RESERVE TANK
The coolant level should be between the ºLOWº and
ºFULLº lines.
If low, check for leaks and add coolant up to the ºFULLº
line.
Dirt, leaves or insects on radiator or condenser
Hoses, Water pump, thermostat housing, radiator,
heater, core, plugs or head gasket leakage
Thermostat faulty
Incorrect ignition timing
Electric cooling system faulty
Radiator hose plugged or rotted
Water pump faulty
Radiator plugged or cap faulty
Cylinder head or block cracked or water passage
clogged
2. CHECK ENGINE COOLANT QUALITY
There should not be any excessive deposits of rust or scales
around the radiator cap or radiator filler hole, and the cool-
ant should be free from oil.
If excessively dirty, replace the coolant.
Check thermostat
Reset tinning
Inspect electric cooling system
Replace hose
Replace water pump
Check radiator and cap
Repair as necessary
TROUBLESHOOTING
CO±12, 13
IG±17, 20
CO±20, 22 Clean radiator or condenser
Repair as necessary Engine overheats
Possible causeRemedy Problem
CO±6, 9 Page
± COOLING SYSTEM
TroubleshootingCO±4

3. (3S±FE)
REPLACE ENGINE COOLANT
(a) Remove the radiator cap.
CAUTION: To avoid the danger of being burned, do not re-
move it while the engine and radiator are still hot
as fluid and steam can be blown out under pressure.
(b) Drain the coolant from the .radiator and engine drain cocks.
(Engine drain cock at the right rear of engine block.)
(c) Close the drain cocks.
Torque (Engine drain cock):
130 kg±cm (9 ft±Ib, 13 N±m) HINT: If the engine tends to overheat, removal of the
thermostat will adversely effect cooling efficiency.
CHECK AND REPLACEMENT OF
ENGINE COOLANT
1. CHECK ENGINE COOLANT LEVEL AT RESERVE TANK
The coolant level should be between the ºLOWº and
ºFULLº lines.
If low, check for leaks and add coolant up to the ºFULLº
line.
Dirt, leaves or insects on radiator or condenser
Hoses, Water pump, thermostat housing, radiator,
heater, core, plugs or head gasket leakage
Thermostat faulty
Incorrect ignition timing
Electric cooling system faulty
Radiator hose plugged or rotted
Water pump faulty
Radiator plugged or cap faulty
Cylinder head or block cracked or water passage
clogged
2. CHECK ENGINE COOLANT QUALITY
There should not be any excessive deposits of rust or scales
around the radiator cap or radiator filler hole, and the cool-
ant should be free from oil.
If excessively dirty, replace the coolant.
Check thermostat
Reset tinning
Inspect electric cooling system
Replace hose
Replace water pump
Check radiator and cap
Repair as necessary
TROUBLESHOOTING
CO±12, 13
IG±17, 20
CO±20, 22 Clean radiator or condenser
Repair as necessary Engine overheats
Possible causeRemedy Problem
CO±6, 9 Page
± COOLING SYSTEMCheck and Replacement of Engine CoolantCO±4

INSTALLATION OF WATER PUMP
(See page CO±9)
1. INSTALL WATER PUMP
(a) Remove any old packing (FIPG) material and be careful not
to drop any oil on the contact surfaces of the water pump
and cylinder block.
wUsing a razor blade and gasket scraper, remove all
the old packing (FIPG) material from the gasket surfaces
and sealing groove.
wThoroughly clean all components to remove all the loose
material.
wUsing a non±residue solvent, clean both sealing surfaces.
(b) Apply seal packing to the water pump groove.
Seal packing: Part No.08826±00100 or equivalent
wInstall a nozzle that has been cut to a 2 ± 3 mm
(0.08 ± 0.12 in.) opening.
HINT: Avoid applying an excessive amount to the surface.
wParts must be assembled within 5 minutes of application.
Otherwise the material must be removed and reapplied.
wImmediately remove nozzle from the tube and reinstall cap.
(c) Install the water pump with the seven bolts.
Torque: 200 kg±cm (14 ft±lb, 20 N±m)
2. INSTALL WATER INLET AND THERMOSTAT
(See steps 1 and 2 on page CO±13) 6. REMOVE WATER PUMP
(a) Remove the seven bolts.
(b) Remove the water pump by prying a screwdriver between
the water pump and cylinder block.
INSPECTION OF WATER PUMP
INSPECT WATER PUMP
Turn the pulley and check that the water pump bearing
moves smoothly and quietly.
± COOLING SYSTEMWater Pump (2VZ±FE)CO±10

REMOVAL OF RADIATO
1. DRAIN ENGINE COOLANT (See page CO±4 or 5)
2. REMOVE BATTERY
3. REMOVE IGNITION COIL (2VZ±FE), IGNITER AND
BRACKET ASSEMBLY
4. DISCONNECT COOLANT RESERVOIR HOSE
5. DISCONNECT RADIATOR NOSE
6. DISCONNECT COOLING FAN MOTOR
CONNECTOR(S)
7. (A/T)
DISCONNECT OIL COOLER HOSES
8. REMOVE RADIATOR AND ELECTRIC COOLING
FAN(S)
Remove the two bolts, supports and radiator.
9. REMOVE ELECTRIC COOLING FANS FROM RADIATOR
DISASSEMBLY OF RADIATOR
(See page CO±15)
1. REMOVE TANK PLATE
(a) Raise the claws of the tank plates with SST in the
numerical order shown in the figure.
SST 09230±00010
NOTICE: Be careful not to damage the core plate.
2. INSPECT COOLING SYSTEM FOR LEAKS
(a) Fill the radiator with coolant and attach a radiator cap
tester.
(b) Warm up the engine.
(c) Pump it to 1.2 kg/cm
2 (17.1 psi, 118 kPa), check that
pressure does not drop.
If the pressure drops, check for leaks as the hoses, radiator
or water pump. If no external leaks are found, check the heat-
er core, cylinder block and head.
± COOLING SYSTEMRadiatorCO±16

2. CHECK CORE PLATE FOR DAMAGE
HINT:
wIf the sides of the core plate groove are deformed, reassemb-
ly of the tank will be impossible. Therefore, first
correct any deformation with pliers.
wWater leakage will result if the bottom of the core plate groove
is damaged or dented. Therefore, repair or replace if neces-
sary.
ASSEMBLY OF RADIATOR
(See page CO±15)
1. (A/T)
INSTALL OIL COOLER TO LOWER TANK
(a) Install new two 0±rings to the oil cooler.
(b) Install the oil cooler with the two plate washers, spring
washers and nuts. 3. (A/T)
REMOVE OIL COOLER FROM LOWER TANK
Remove the two nuts, spring washers, plate washers, oil
cooler and two 0±rings. 2. REMOVE TANK
(a) Pull the tank upward.
(b) Remove the 0±ring. (b) Pull the tank plates outward.
± COOLING SYSTEMRadiatorCO±17

INSTALLATION OF RADIATOR
1. INSTALL ELECTRIC COOLING FANS TO RADIATOR
2. INSTALL RADIATOR
Place the radiator in position, and install the two supports
with the two bolts.
HINT: After installation, check that the rubber cushion (A)
of the supports are not depressed.
3. (A/T)
CONNECT OIL COOLER HOSES
4. CONNECT COOLING FAN MOTOR CONNECTORS
5. CONNECT RADIATOR HOSES
6. CONNECT COOLANT RESERVOIR HOSE
7. INSTALL IGNITION COIL (2VZ±FE), IGNITER AND
BRACKET ASSEMBLY
8. INSTALL BATTERY
Connect the grand strap.
9. FILL WITH ENGINE COOLANT (See page CO±5)
10. START ENGINE AND CHECK FOR LEAKS
11. (A/T)
CHECK AUTOMATIC TRANSMISSION (A/T) FLUID
LEVEL
NOTICE: Do not overfill.
(d) Check for water leaks.
HINT: On radiators with resin tanks, there is a clearance
between the core plate and tank plate where a minute
amount of air will remain, giving the appearance of an
air leak when the radiator is submerged in water. There-
fore, before performing the water leak test, first switch
the radiator around in the water until all air bubbles dis-
appear.
7. PAINT TANK PLATE
HINT: If the water leak test checks out okay, allow the radia-
tor to completely dry and then paint the tank plate.
± COOLING SYSTEMRadiatorCO±20