1986 TOYOTA CAMRY V20 oil temperature

Low Oil Pressure Warning
INSPECTION OF PRESSURE WARNING
1. INSPECT WARNING LIGHT OPERATION
(a) Disconnect the connector from the pressure switch
and ground the connector on the wire harness side.
(b) Turn the ignition switch ON, check that t he warning
light lights.
If the warning light does not light, test the bulb.
2. INSPECT PRESSURE SWITCH OPERATION
(a) Disconnect the connector from the switch.
(b) Check that there is continuity between terminal and
ground with the engine stopped.
(c) Check that there is no continuity between terminal
and ground with the engine running.
HINT: Oil pressure should be over 0.3 kg/cm2 (4.3 psi, 29
kPa).
If operation is not as specified, replace the switch.If resistance value is not as specified, replace the send-
er gauge. 3. MEASURE SENDER GAUGE RESISTANCE
Measure the resistance between terminal and ground.
ater temperature oC
(OF)Resistance (
)
N i ppo nde nso Yazaki
± BODY ELECTRICAL SYSTEMCombination MeterBE±39

6. INSTALL REAR SHOE
(a) Using pliers, connect the parking brake cable to the
lever.
(b) Pass the parking brake cable through the notch in the
anchor plate.
(c) Set the rear shoe in place with the end of the shoe
inserted in the wheel cylinder and the other end in the
anchor plate.
(d) Using SST, install the shoe hold±down spring, cups
and pin.
SST 09718± 10
NOTICE: Do not allow oil or grease to get on the ru
bing face. 4. APPLY HIGH TEMPERATURE GREASE TO BACKING
PLATE AND ADJUSTER
(a) Apply high temperature grease to the brake shoe
contact surfaces as shown.
5. INSTALL ADJUSTER ONTO REAR SHOE
Set the adjuster and return spring in place and install the
adjusting lever spring.(b) Apply high temperature grease to the adjuster bolt
threads and ends.
± BRAKE SYSTEMRear BrakeBR±31

5. INSTALL TENSION SPRING, FRONT SHOE AND
ADJUSTER
(a) Install the tension spring to the rear shoe.
(b) Install the front shoe to the tension spring.
(c) Install the adjuster between the front and rear shoes.
(d) Install the shoe strut with spring. 4. INSTALL REAR SHOE
Slide in the rear shoe between the shoe hold±down spring
cup and the backing plate.
NOTICE: Do not allow oil or grease to get on the rubbing
face.
3. CONNECT PARKING BRAKE CABLE TO PARKING
BRAKE LEVER
(a) Install the shoe hold±down springs, cups and pins.
(b) Connect the parking brake cable to the parking brake
lever of the rear shoe.
(e) Slide in the front shoe between the shoe hold±down
spring cup and the backing plate. 2. APPLY HIGH TEMPERATURE GREASE TO AD-
JUSTER AS SHOWN
± BRAKE SYSTEMRear BrakeBR±47

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

(b) Apply a fight coat of engine oil on the 4±ring of the water
by±pass pipe.
(c) Connect the pump cover to the water by±pass pipe. Do
not install the nuts yet.
(d) Install the water pump with the three bolts. Torque the
bolts in the sequence shown.
Torque: 95 kg±cm (82 in.±Ib, 9.3 N±m)
3. INSTALL PULLEYS AND TIMING BELT (See pages
EM±29 to 33)
4. CONNECT RADIATOR LOWER HOSE
5. CONNECT WATER TEMPERATURE SWITCH
CONNECTOR
6. FILL WITH ENGINE COOLANT (See page CO±5) (e) Install the two nuts holding the pump cover to the water
by±pass pipe.
Torque: 95 kg±cm (82 in.±Ib, 9.3 N±m)
± COOLING SYSTEMWater Pump PS±FE)CO±8

The 3S±FE engine is an in±line 4±cylinder engine with the cylinders numbered 1 ± 2 ± 3 ± 4 from the
front.
The crankshaft is supported by 5 bearing inside the crankcase. These bearing are made of aluminum
alloy.
The crankshaft is integrated with 8 weights for balance. Oil holes are placed in the center of the crank-
shaft to supply oil to the connecting rods, bearing, pistons and other components.
This engine's ignition order is 1 ± 3 ± 4 ± 2. The cylinder head is made of aluminum alloy, with a cross
flow type intake and exhaust layout and with pent±roof type combustion chambers. The spark plugs are
located in the center of the combustion chamber.
The intake manifold has 8 independent long ports and utilizes the inertial supercharging effect to im-
prove engine torque at low and medium speeds.
Exhaust and intake valves are equipped with irregular pitch springs made of special valve spring carbon
steel which are capable of functioning no matter what the engine speed.
The intake side camshaft is driven by a timing belt, and a gear on the intake side camshaft engages with
a gear on the exhaust side camshaft to drive it. The cam journal is supported at 5 places between the
valve lifters of each cylinder and on the front end of the cylinder head. Lubrication of the cam journal and
gear is accomplished by oil being supplied through the oiler port in the center of the camshaft.
Adjustment of the valve clearance is done by means of outer shim type system, in which valve adjusting
shims are located above the valve lifters. This permits replacement of the shims without removal of the
camshafts.
The resin timing belt cover is made of 2 pieces. A service hole is provided in the No. 1 belt cover for ad-
justing the timing belt tension.
Piston are made of high temperature±resistant aluminum alloy, and a depression is built into the piston
head to prevent interference with the valves.
Piston pins are the semi±floating type, with the pins fastened to the connecting rods by pressure fitting,
allowing the pistons and pins to float.
The No. 1 compression ring is made of steel and the No. 2 compression ring is made of cast iron. The oil
ring is made of a combination of steel and stainless steel. The outer diameter of each piston ring is
slightly larger than the diameter of the piston and the flexibility of the rings allows them to hug the cylin-
der walls when they are mounted on the piston rings No. 1 and No. 2 work to prevent gas leakage from
the cylinder and oil ring works to clear oil off the cylinder walls to prevent it from entering the combustion
chambers.
The cylinder block is made of cast iron. It has 4 cylinders which are approximately 2 times the length of
the piston stroke. The top of the cylinders is closed off by the cylinder head and the lower end of the cyl-
inders becomes the crankcase, in which the crankshaft is installed. In .addition, the cylinder block con-
tains a water jacket, through which coolant is pumped to cool the cylinders.
The oil pan is bolted onto the bottom of the cylinder block. The oil pan is an oil reservoir made of
pressed steel shoot. A dividing plate is included inside the oil pan to keep sufficient oil in the bottom of
the pan even when the vehicle is tilted. This dividing plate also prevents the oil from making waves when
the vehicle is topped suddenly and thus shifting the oil away from the oil pump suction pipe.
± ENGINE MECHANICALDescription (3S±FE)EM±3

The 2VZ±FE engine has 6 cylinder in a V arrangement at bank of 60°. From the front of the RH bank cylin-
ders are numbered 1 ± 3 ± 5, and from the front of the LH bank cylinders are numbered 2 ± 4 ±r 6. The crankshaft is
supported by 4 bearings inside the crankcase. These bearing are made of copper and lead alloy.
The crankshaft is integrated with 5 weights for balance. Oil holes are placed in the center of the crankshaft for sup-
plying oil to the connecting rods, pistons and other components.
This engine's ignition order is 1 ± 2 ± 3 ± 4 ± 5 ± 6. The cylinder head is made of aluminum alloy, with a cross flow
type intake and exhaust layout and with pent±roof type combustion chambers. The spark plugs are located in the
center of the combustion chambers.
At,the front and rear of the intake port of the intake manifold, a water passage has been provided which connects
the RH and LH cylinder heads.
Exhaust and intake valves are equipped with irregular pitch springs made of special valve spring carbon steel which
are capable of functioning no matter what the engine speed.
The RH and LH intake camshaft are driven by a single timing belt, and a gear on the intake side camshaft engages
with a gear on the exhaust side camshaft to drive it. The cam journal is supported at 5 (intake) or 4
(exhaust) places between the valve liters of each cylinder and on the front end of the cylinder head. Lubrication of
the cam journals and gears is accomplished by oil being supplied through the oiler port in the center of the camshaft.
Adjustment of the valve clearance is done by means of outer shim type system, in which valve adjusting shims are
located above the valve lifters. The permits replacement of the shims without removal of the camshafts.
The timing belt cover is composed of resin type No. 2 and No. 1 above and below the RH mounting bracket.
Piston are made high temperature±resistant aluminum alloy, and a depression is built into the piston head to prevent
interference with the valves.
Piston pins are the semi±floating type, with the pins fastened to the connecting rods by pressure fitting, allowing the
pistons and pins to float.
The No. 1 compression ring is made of steel and the No. 2 compression ring is made±of cast iron. The oil ring is
made of a combination of steel and stainless steel. The outer diameter of each piston ring is slightly larger than the
diameter of the piston and the flexibility of the rings allows them to hug the cylinder walls when they are mounted on
the piston. Compression rings No. 1 and No. 2 work to prevent gas leakage from the cylinder and oil ring works to
clear oil off the cylinder walls to prevent it from entering the combustion chambers.
The cylinder block is made of cast iron with a bank angle of 60°. It has 6 cylinders which are approximately 2
times the length of the piston stroke. The top of the cylinders is closed off by the cylinder heads and the lower end of
the cylinders becomes the crankcase, in which the crankshaft is installed. In addition, the cylinder block contains a
water jacket, through which coolant is pumped to cool the cylinders.
The oil pan is bolted onto the bottom of the cylinder block. The oil pan is an oil reservoir made of pressed steel
sheet. A dividing plate is included inside the oil pan to keep sufficient oil in the bottom of the pan even when the ve-
hicle is tilted. This dividing plate also prevents the oil from making waves when the vehicle is stopped suddenly and
thus shifting the oil away from the oil pump suction pipe.
± ENGINE MECHANICALDescription (2VZ±FE)EM±5

17. INSTALL WATER OUTLET
(a) Install a new gasket and the water outlet with the two bolts.
Torque: 150 kg±cm (11 ft±lb, 15 N±m)
(b) Connect the following hoses and connectors:
(1) Radiator upper hose
(2) Water hose
(3) Emission control vacuum hoses
(4) Water temperature sender gauge connector
(5) Water temperature sensor connector
(6) Cold start injector time switch connector
18. INSTALL DISTRIBUTOR
(See steps 1 and 4 on page IG±16)
19. ASSEMBLE EXHAUST MANIFOLD AND CATALYTIC
CONVERTER
Assemble the following parts:
(1) Catalytic converter
(2) Cushion
(3) Retainer
(4) New gasket
(5) Exhaust manifold
(6) Three bolts and two nuts
Torque: 300 kg±cm (22 ft±Ib, 29 N±m)
(7) Two catalytic converter heat insulators
(8) Eight bolts
(9) Manifold lower heat insulator
(10) Five bolts15. INSTALL EGR VALVE AND MODULATOR
(a) Install the EGR modulator with the bolt.
(b) Install a new gasket and the EGR valve with the union nut
and two bolts.
Torque:
Union nut 600 kg±cm (43 ft±Ib, 59 N±m)
Bolt and nut 130 kg±cm (9 fit±Ib, 13 N±m)
(c) Install the vacuum hoses.
16. INSTALL WATER BY±PASS PIPE
(a) Install a new O±ring to the by±pass pipe.
(b) Apply a light of engine oil on the 0±ring.
(c) Install a new gasket and the by±pass pipe with the two nuts
and two bolts.
Torque(Nut): 95 kg±cm (82 in.±lb, 9.3 N±m)
(d) Connect the water hoses.
± ENGINE MECHANICALCylinder Head (3S±FE)EM±72