service TOYOTA CAMRY V20 1986 Service Information

4. INSTALL REAR BRAKE ASSEMBLY
(a) Install the disc brake assembly and torque the two
mounting bolts.
Torque: 475 kg±cm (34 ft±Ib, 47 N±m)
(b) Install the axle carrier mounting bolt and nut of upper
side.
Torque:. 2,100 kg±cm (152 ft±lb, 206 N±m)
2. INSTALL REAR AXLE HUB
(a) Install the backing plate with parking brake assem-
bly in place.
(b) Install a new O±ring to the axle carrier.
(c) Install the rear axle hub with the four bolts.
Torque: 820 kg±cm (59 ft±Ib, 80 N±m)
5. CONNECT SPEED SENSOR CONNECTOR
(a) Install the wire harness with clamps and bolts in
place.
(b) Insert the wire harness connector to inside of the ve-
hicle, and connect the connector.
(c) Install the seat cushion.
INSTALLATION OF REAR SPEED
SENSOR
1. INSTALL SPEED SENSOR
Install the speed sensor to the backing plate with a bolt.
Torque: 80 kg±cm (69 in.±Ib, 7.8 N±m)
3. INSTALL ROTOR DISC
Align the hole on the axle hub and service hole on the
disc, and install the rotor disc.
± BRAKE SYSTEMAnti±lock Brake System (A.B.S.)BR±99

PRECAUTIONS
1. Before working the fuel system, disconnect the cable
from negative (±) terminal of the battery.
HINT: Any diagnostic code retained by the computer will be erased
when the battery terminal is removed. Therefore, if necessary, read
the diagnosis before removing the battery terminal.
2. Do not smoke or work open flame when working the fuel system.
3. Keep gasoline off rubber or leather parts.
INSPECTION PRECAUTIONS
MAINTENANCE PRECAUTIONS
1. CHECK CORRECT ENGINE TUNE±UP
(See page EM±8)
2. PRECAUTIONS WHEN CONNECTING GAUGE
(a) Use the battery as the power source for the timing light, tachome-
ter, etc.
(b) (3S±FE)
Connect the test probe of a tachometer to the service
connector of the distributor.
(c) (2VZ±FE)
Connect the test probe of a tachometer to the terminal
IG ± of the check connector.
3. IN EVENT OF ENGINE MISFIRE FOLLOWING
PRECAUTIONS SHOULD BE TAKEN
(a) Check proper connection of battery terminals, etc.
(b) Handle high±tension cords carefully.
(c) After repair work, check that the ignition coil terminals and
all other ignition system lines are reconnected securely.
(d) When cleaning the engine compartment, be especially
careful to protect the electrical system from water.
4. PRECAUTIONS WHEN HANDLING OXYGEN
SENSOR(S)
(a) Do not allow the oxygen sensor to drop or hit against an ob-
ject.
(b) Do not allow the sensor to come into contact with water.
± EFI SYSTEMPrecautionsFI±5

PRECAUTIONS
1. Before working the fuel system, disconnect the cable
from negative (±) terminal of the battery.
HINT: Any diagnostic code retained by the computer will be erased
when the battery terminal is removed. Therefore, if necessary, read
the diagnosis before removing the battery terminal.
2. Do not smoke or work open flame when working the fuel system.
3. Keep gasoline off rubber or leather parts.
INSPECTION PRECAUTIONS
MAINTENANCE PRECAUTIONS
1. CHECK CORRECT ENGINE TUNE±UP
(See page EM±8)
2. PRECAUTIONS WHEN CONNECTING GAUGE
(a) Use the battery as the power source for the timing light, tachome-
ter, etc.
(b) (3S±FE)
Connect the test probe of a tachometer to the service
connector of the distributor.
(c) (2VZ±FE)
Connect the test probe of a tachometer to the terminal
IG ± of the check connector.
3. IN EVENT OF ENGINE MISFIRE FOLLOWING
PRECAUTIONS SHOULD BE TAKEN
(a) Check proper connection of battery terminals, etc.
(b) Handle high±tension cords carefully.
(c) After repair work, check that the ignition coil terminals and
all other ignition system lines are reconnected securely.
(d) When cleaning the engine compartment, be especially
careful to protect the electrical system from water.
4. PRECAUTIONS WHEN HANDLING OXYGEN
SENSOR(S)
(a) Do not allow the oxygen sensor to drop or hit against an ob-
ject.
(b) Do not allow the sensor to come into contact with water.
± EFI SYSTEMInspection PrecautionsFI±5

INSPECTION OF COLD START
INJECTOR
1. INSPECT INJECTION OF COLD START INJECTOR
NOTICE: Keep clear for sparks during the test.
(a) Install SST (two unions) to the injector and delivery
pipe with new gaskets and the union bolts.
SST 09268±41045 (09268±41080)
(b) Connect SST (hose) to the unions.
SST 09268±41045
(c) Connect SST (wire) to the injector.
SST 09842±30050
(d) Put a container under the injector.
(e) Reconnect the battery negative (±) cable.
(f) Turn the ignition switch ON.
NOTICE: Do not start the engine.
2. INSPECT LEAKAGE
(a) In the condition above, disconnect the test probes of
SST (wire) from the battery and check fuel leakage from the
injector.
SST 09842±30050
Fuel drop: One drop or less per minute
(b) Disconnect the battery negative H cable.
(c) Remove SST and the service wire.
SST 09268±41045 and 09842±30050(h) Connect the test probes of the SST (wire) to the
battery, and check that the fuel spray is as shown.
SST 09842±30050
NOTICE: Perform this check within the shortest pos-
sible time.
(g) Using SST, connect terminals +B and FP of the
check connector.
SST 09843±18020
± EFI SYSTEMFuel System (Cold Start Injector (3S±FE))FI±79

INSPECTION OF COLD START
INJECTOR
1. INSPECT INJECTION OF COLD START INJECTOR
NOTICE: Keep clear for sparks during the test.
(a) Install SST (two unions) to the injector and delivery pipe with
new gaskets and the union bolts.
SST 09268±41045 (09268±41080)
(b) Connect SST (hose) to the unions.
SST 09268±41045
(e) Connect SST (wire) to the injector.
SST 09842±30050
(d) Put a container under the injector.
(e) Reconnect the battery negative (±) cable.
(f) Turn the ignition switch ON.
NOTICE: Do not start the engine.
2. INSPECT LEAKAGE ±
(a) In the condition above, disconnect the test probes of
SST (wire) from the battery and check fuel leakage from
the injector.
SST 09842±30050
Fuel drop: One drop or less per minute
(b) Disconnect the battery negative (±) cable.
(c) Remove SST and the service wire.
SST 09268±41045,09842±30050 and 09843±18020 (h) Connect the test probes of the SST (wire) to the battery,
and check that the fuel spray is as shown.
SST 09842±30050
NOTICE: Perform this check within the shortest pos-
sible time.
(g) Using SST, connect terminals +B and FP of the check
connector.
SST 09843±18020
± EFI SYSTEMFuel System (Cold Start Injector (2VZ±FE))FI±82

(k) Connect SST (wire) to the injector and battery for 15
seconds, and measure the injection volume with a gradu-
ated cylinder. Test each injector two or three times.
SST 09842±30070
Volume: 45 ± 55 cc (2.7 ± 3.4 cu in.) per 15 sec.
Difference between each injector:
5 cc (0.3 cu in.) or less
If the injection volume is not as specified, replace the injec-
tor.
2. INSPECT LEAKAGE.
(a) In the condition above, disconnect the. test probes of
SST (wire) from the battery and check the fuel leakage
from the injector.
SST 09842±30070
Fuel drop: One drop or less per minute
(b) Disconnect the battery negative (±) cable.
(c) Remove SST and the service wire.
SST 09268±4.1045 (e) Install a new O±ring to the injector.
(f) Connect SST (union and hose) to the injector, and hold
the injector and union with SST (clamp).
SST 09268±41045
(g) Put the injector into the graduated cylinder.
HINT: Install the a suitable vinyl hose onto the injector to
prevent gasoline from splashing out
(h) Reconnect the battery negative H cable.
(i) Turn the ignition switch ON.
HINT: Do not start the engine
(j) Using SST, connect terminals +B and FP of the check
connector.
SST 49843±18020 (e) Remove the pressure regulator. (See page FI±84)
(d) Connect the fuel return hose and SST (hose) to the
pressure regulator with SST (union), two new gaskets
and union bolt.
SST 09268±41045 (09268±41080, 09268±41090)
± EFI SYSTEMFuel System (Injectors (3S±FE))FI±90

(b) Using SST, connect terminals TE1 and E1 of the check
connector.
SST 09843±18020
(c) After engine rpm are kept at 1,000 ± 1,300 rpm for 5
seconds, check that they return to idle speed.
If the rpm operation is not as specified, check the ISC
valve, wiring and ECU.
(d) Remove the service wire.
2. INSPECT ISC VALVE RESISTANCE
(a) Disconnect the ISC valve connector.
(b) Using an ohmmeter, measure the resistance between termi-
nal +B and other terminals (ISC1, ISC2).
Resistance: 16.0 ± 17.0


If the resistance is not as specified, replace the ISC valve.
(c) Reconnect the ISC valve connector.
ON±VEHICLE INSPECTION
1. INSPECT ISC VALVE OPERATION
(a) Initial conditions:
wEngine at normal operating temperature
wIdle speed set correctly
wTransmission in ºNº range
Idle Speed Control (ISC) Valve
(3S±FE)
± EFI SYSTEMAir Induction System (Idle Speed Control (ISC) Valve (3S±FE)FI±116

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

Alternately loosen and remove No. 3 bearing cap bolts 9
and 10.
HINT:
wAs bearing cap bolts 9 and 10 are loosened, check that the
camshaft is being lifted out straight and level.
wIf the camshaft is not being lifted out straight and level, tighten
bearing cap bolts 9 and 10. Then reverse the order of above
steps from (f) to (a) and reset the knock pin of the intake cam-
shaft at 10 ± 45° BTDC, and repeat the steps from (b) and (g)
once again.
NOTICE: Do not pry on or attempt to force the camshaft
with a tool or other object.
(h) Remove the No. 3 bearing cap and exhaust camshaft.
B. Remove intake camshaft
(a) Set the knock pin of the intake camshaft at 80 ± 115°
BTDC of camshaft angle.
NOTE: The above angle allows No. 1 and No. 3 cylinder
cam lobes of the intake camshaft to push their valve lifters
evenly.(b) Secure the exhaust camshaft sub±gear to main gear
with a service bolt.
Recommended service bolt:
Thread diameter6 mm
Thread pitch 1.0 mm
Bolt length 16 ± 20 mm (O.63 ± 0.79 in.)
HINT: When removing the camshaft, make certain that
the torsional spring force of the sub±gear has been elimi-
nated by the above operation.
(e) Uniformly loosen and remove bearing cap bolts 3 to 8
in several passes in the sequence shown.
HINT: Do not remove the No. 3 bearing cap bolts at this
stage.
(f) Remove the No. 1, No. 2 and No. 4 bearing cap.(c) Remove rear bearing cap bolts 1 and 2.
(d) Remove the rear bearing cap.
± ENGINE MECHANICALCylinder Head (3S±FE)EM±53

(f) Alternately loosen and remove No. 2 bearing cap bolts 9
and 10.
HINT:
wAs bearing cap bolts 9 and 10 are loosened, check that the
camshaft is being lifted out straight and level, after breaking
adhesion on the front bearing cap.
wIf the camshaft is not being lifted out straight and level, re-
tighten bearing cap bolts 9 and 10. Reverse the order of
above steps from (f) to (a) and reset the knock pin of the in-
take camshaft at 80 ± 115° BTDC, and repeat steps from (b)
to (f) once again.
NOTICE: Do not pry on or attempt to force the camshaft
with a tool or other object.
(g) Remove the No. 2 bearing cap and camshaft.
31. DISASSEMBLE EXHAUST CAMSHAFT
(a) Mount the hexagonal wrench head portion of the camshaft
in a vise.
(b) Insert service bolt (A) into the service hole of the cam-
shaft sub±gear.
(c) Using a screwdriver, turn the sub±gear clockwise, and
remove the service bolt (B).
NOTICE: Be careful not to damage the camshaft.
(d) Uniformly loosen and remove bearing cap bolts 3 to 8
in several pass in the sequence shown.
HINT: Do not remove the No. 2 bearing cap bolts at this
stage.
(e) Remove the No. 1, No. 3 and No. 4 bearing caps. (b) Remove the front bearing cap bolts i and 2.
(e) Remove the front bearing cap and oil seal.
NOTICE: If the front bearing cap is not removable by
hand, do not try to remove by force but leave as it is
without bolts.
± ENGINE MECHANICALCylinder Head (3S±FE)EM±54