1986 TOYOTA CAMRY V20 engine

ABBREVIATIONS USED IN THIS
MANUAL
A.B.S. Anti±Lock Brake System
A/C Air Conditioner
ALR Automatic Locking Retractor
Approx. Approximation
A/T, ATM Automatic Transaxle
ATF Automatic Transmission Fluid
B
0 Overdrive Brake
B
1 Second Coast Brake
B
2 Second Brake
B
3 First and Reverse Brake
BDC Bottom Dead Center
BTDC Before Top Dead Center
BVSV Bimetal Vacuum Switching Valve
C
0 Overdrive Clutch
C
1 Forward Clutch
C
2 Direct Clutch
CB Circuit Breaker
DP Dash Pot
CRS Child Restraint System
ECT Electronic Controlled Transaxle
ECU Electronic Controlled Unit
EFI Electronic Fuel Injection
E/G Engine
EGR Exhaust Gas Recirculation
ELR Emergency Locking Retractor
ESA Electronic Spark Advance
EVAP Evaporative (Emission Control)
EX Exhaust (manifold, valve)
Ex. Except
F
0 Overdrive One±Way Clutch
F
1 No. 1 One±Way Clutch
F
2 No. 2 One±Way Clutch
FIPG Formed in Place Gasket
FL Fusible Link
Fr Front
IG Ignition
IN Intake (manifold, valve)
ISC Idle Speed Control
LED Light Emitting Diode
LH Left±Hand
LSPV Load Sensing Proportioning Valve
Max. Maximum
Min. Minimum
MP Multipurpose
M/T, MTM Manual Transaxle
O/D, OD Overdrive
O/S Oversize
PCV Positive Crankcase Ventilation
PKB Parking Brake
± INTRODUCTIONAbbreviations Used in This ManualIN±28

DESCRIPTION
A fully pressurized, fully filtered lubrication system has been adopted for this engine.
± LUBRICATION SYSTEMDescriptionLU±2

A pressure feeding lubrication system has been adopted to supply oil to the moving parts of this engine.
The lubrication system consists of an oil pan, oil pump, oil filter and other external parts which supply oil
to the moving parts in the engine block The oil circuit is shown in the illustration at the top of the pre-
vious page. Oil from the oil pan is pumped up by the oil pump. After it passes through the oil filter, it is
fed through the various oil holes in the crankshaft and cylinder block. After passing through the cylinder
block and performing its lubricating function, the oil is returned by gravity to the oil pan. A dipstick on the
center left side of the cylinder block is provided to check the oil level.
OIL PUMP
The oil pump pumps up oil from the oil pan and sends it under pressure to the various parts of the en-
gine.
An oil strainer is mounted in front of the inlet to the oil pump. The oil pump itself is a trochoid±type
pump, inside of which is a drive rotor and a driven rotor. 'When the drive rotor rotates, the driven rotor
rotates in the same direction, and since the axis of the driven rotor shaft is different from the center of
the driven rotor, the space between the two rotors is changed as they rotate. Oil is drawn in when the
space is wide and is discharged when the space in narrow.
OIL PRESSURE REGULATOR (RELIEF VALVE)
At high engine speeds, the engine oil supplied by the oil pump exceeds the capacity of the engine to
utilize it.
For that reason, the oil pressure regulator works to prevent an oversupply of oil. During normal oil sup-
ply, a coil spring and valve keep the by±pass closed, but when too much oil is being fed, the pressure
become extremely high, overpowering the force of the spring and opening the valves. This allows the
excess oil to flow through the valve and return to the oil pan.
OIL FILTER
The oil filter is a full flow type filter with a built±in paper filter element, Particles of metal from wear, air-
born dirt, carbon and other impurities can get in the oil during use and could cause accelerated wear or
seizing if allowed to circulate through the engine. The oil filter, integrated into the oil line, removes these
impurities as the oil passes through it. The filter is mounted outside the engine to simplify replacement of
the filter element.
A relief valve is also included ahead of the filter element to relieve the high oil pressure in case the filter
element becomes clogged with impurities. The relief valve opens when the oil pressure overpowers the
force of the spring. Oil passing through the relief valve by±passes the oil filter and flows directly into the
main oil hole in the engine.
± LUBRICATION SYSTEMDescriptionLU±4

Oil leakage
Relief valve faulty
Oil pump faulty
Engine oil poor quality
Crankshaft bearing faulty
Connecting rod bearing faulty
Oil filter cloggedRepair as necessary
Repair relief valve
Repair oil pump
Replace engine oil
Replace bearing
Replace bearing
Replace oil filter Cylinder head; cylinder block or oil pump
body damaged or cracked
Oil seal faulty
LU±9,16
LU±9,16
LU±7
EM±116,
149
EM±114,
147
LU±7
TROUBLESHOOTING
Repair as necessary
Replace oil seal
EM±125,
160
LU±13
Relief valve faulty
Repair relief valve High oil pressureLow oil pressureReplace gasket Possible cause
Gasket faulty Oil leakageRemedy
LU±9, 16 Problem
Page
± LUBRICATION SYSTEMTroubleshootingLU±5

3. REMOVE OIL PRESSURE SWITCH
4. INSTALL OIL PRESSURE GAUGE
5. WARM UP ENGINE
Allow the engine to normal operating temperature.
6. CHECK OIL PRESSURE
Oil pressure:
At idling 0.3 kg/cm
2 (4.3 pal, 29 kPa)
or more
At 3,000 rpm
3S±FE 2.5 ± 5.0 kg/cm
2
(36 ± 71 psi, 245 ± 490 kPa)
2vZ±FE 3.0 ± 5.5 kg/cm
2
(43 ± 78 psi, 294 ± 539 kPa)
7. REINSTALL OIL PRESSURE SWITCH
Apply adhesive to two or three threads.
Adhesive: Part No.08833±00080, THREE BOND
1344, LOCTITE 242 or equivalent
8. START ENGINE AND CHECK FOR LEAKS
OIL PRESSURE CHECK
1. CHECK ENGINE OIL QUALITY
Check the oil for deterioration, entry of water, discoloring
or thinning.
If the quality is poor, replace the oil.
Use API grade SG multigrade, fuel± efficient and recom-
mended viscosity oil.
2. CHECK ENGINE OIL LEVEL
The oil level should be between the ºLº and ºFº marks on the
dipstick.
If low, check for the leakage and add oil up to ºFº mark
± LUBRICATION SYSTEMOil Pressure CheckLU±6

REPLACEMENT OF ENGINE OIL
AND OIL FILTER
NOTICE:
wProlonged and repeated contact with mineral oil will re-
sult in the removal of natural¿¿ts from the skin, leading
to dryness, irritation and dermatitis. In addition, used en-
gine oil contains potentially harmful contaminants
which may cause skin cancer.
wCare should be taken, therefore, when changing engine
oil, to minimize the frequency and length of time your
skin is exposed to used engine oil. Protective clothing
and gloves, that cannot be penetrated by oil, should be
worn. The skin should be thoroughly washed with soap
and water, or use waterless hand cleaner, to remove any
used engine oil. Do not use gasoline, thinners, or sol-
vents.
wIn order to preserve the environment, used oil must be
disposed of only at designated disposal sites.
1. DRAIN ENGINE OIL
(a) Remove the oil filler cap.
(b) Remove the oil drain plug, and drain the oil into a container.
2. REPLACE OIL FILTER
(a) Using SST, remove the oil filter.
SST 09228±06500 (3S±FE)
09228±07500 (2VZ±FE)
(b) Check and clean±the oil filter installation surface.
(c) Apply clean engine oil to the gasket of a new oil filter.
± LUBRICATION SYSTEMReplacement of Engine Oil and Oil FilterLU±7

3. FILL WITH ENGINE OIL
(a) Clean and install the oil drain plug with a new gasket.
Torque: 2VZ±FE 3S±FE 400 kg±cm (29 ft±lb, 39 N±m)
(b) Fill with new engine oil (API grade SG muitigrade,
fuel±efficient and recommended viscosity oil).
Capacity (3S±FE):
Drain and refill
w/ Oil filter change
4.1 liters (4.3 U S qts, 3.6 Imp. qts)
w/o Oil filter change
3.7 liters (3.9 US qts, 3.3 Imp. qts)
Dry fill 4.5 liters (4.8 U S qts, 4.4 Imp. qts)
Capacity (2VZ±FE):
Drain and refill
w/ Oil filter change
3.9 liters (4.1 US qts, 3.4 Imp. qts)
w/o Oil filter change
3.7 liters (3.9 US qts, 3.3 Imp. qts)
Dry fill 4.6 liters (4.8 US qts, 4.4 Imp. qts)
(c) Install the oil filler cap.
4. START ENGINE AND CHECK FOR LEAKS
5. RECHECK ENGINE OIL LEVEL (See page LU±6) (d) Lightly screw the oil filter into place, and tighten it until
the gasket contacts the seat.
(e) Using SST, tighten it an additional 3/4 turn.
SST 09228±06500 (3S±FE)
09228±07500 (2VZ=FE)
± LUBRICATION SYSTEMReplacement of Engine Oil and Oil FilterLU±8

1. REMOVE HOOD
2. RAISE VEHICLE
NOTICE: Be sure the vehicle is securely supported.
3. REMOVE ENGINE UNDER COVERS
4. DRAIN ENGINE OIL (See page LU±7)
5. REMOVE FRONT EXHAUST PIPE
(See step 25 on page EM±110)
6. REMOVE SUSPENSION LOWER CROSSMEMBER
7. REMOVE ENGINE MOUNTING CENTER MEMBER
OIL PUMP (3S±FE)
REMOVAL OF OIL PUMP
HINT: When repairing the oil pump, the oil pan and strainer
should be removed and cleaned.
± LUBRICATION SYSTEMOil Pump (3S±FE)LU±9