1987 TOYOTA CELICA Service Repair Manual

IGNITION SY-$TEM
- Cam Position Sensor (‘/M-GTE)
IO-27
(cl Connect the PS idle up air hose.
(d) Connect the air flow meter connector.
(e) Connect the PCV hose and three air hoses.
5. INSTALL NO.4 AIR CLEANER PIPE WITH NO.1 AND
NO.2 AIR CLEANER HOSES
6. CONNECT CAM POSITION SENSOR CONNECTOR
7.
WARM UP ENGINE
Allow the engine to reach normal operating temperature.
8. ADJUST IGNITION TIMING (See page EM-171

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. .
..,I -_
LUBRICATION SYSTEM: . . I-
Page
DESCRIPTION . . ..*.*.........*......*........
LU-2
TROUBLESHOOTING ..I....*........*.‘....... b-4
OIL PRESSURE CHECK . . , . . . . . .
l . . . . . . , . . . . . . . ‘LU-5
REPLACEMENT OF ENGINE OIL
AND OIL FILTER I*......**.~.....~..,,,,..,.
LU-6
OIL PUMP *I...~.......~.~.,,,...~...~‘,,...,.
LU-6
OIL COOLER AND OIL PRESSURE
REGULATOR (7M-GE) . . . . . . . . . . . . . . . . . . . . . . . LU-15
OIL COOLER AND OIL PRESSURE
REGULATOR (7M-GTE) . . . . . . . . . . . . . . a. . . . . . LU-16

LU-2
-4UBRlCATlON SYSTEM - Description
DESCRIPTION --
A fully pressurized, fully filtered lubrication system has been adopted for this engine.
7M-GE (MS) 7M-GE (MA)
Oil Co&x
7M-GTE (A/T)
Oil Choler
( VALVE GUIDES -
.---- PISTONS
t
.- - - - CONNECTING
RODS
t
.----
{ CRANKSHAFT 1
I *OIL FILTER BRACKET
+---+ RELIEF VALVE 1
1 RELIEF VALVE
I
I I
OIL PUMP
t
I OIL STRAINER
t
OIL PAN l 7M-GTE only

LUBRICATION SYSTEM - Description
.,LU-3
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 previous 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 gra-
vity to the oil pan. A dipstick on the 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
engine. An oil strainer is mounted in front of the
inlet to the oil pump. The oil pump itself is a gear
pump, which uses a drive gear and driven gear
inside the pump body. When the drive gear
rotates, the driven gear rotates in the opposite
direction. When the gear teeth disengage oil is
drak n in, and when the gear teeth engage oil is
discharged.
OIL PRESSURE REGULATOR
At high engine speeds, the engine oil supplied
bY thr oil pump exceeds the capacity of the engine
10 utiiize it.
For that reason, the oil pressure regula-
tor i ,>rks to prevent an oversupply of oil. During
norm.tl oil
supply, a coil spring and valve keep the
bYPcls:s closed, but when too much oil is being fed,
the I’tt’essure becomes extremely high, overpower-
9 the force of the spring and opening the valves.
This ;:ilows the excess oil to flow through the
Yalvtj :snd return to the oil pan. Olii FILTER
The oil filter is a full flow type filter with a built-
in paper filter element. Particles of :metal ‘from
wear, a&born dirt, carbon and other impurities can ’
get in the oil during use and could cause acceler-
ated wear or siezing 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 ele-
ment becomes clogged with impurities. The relief
valve opens when the oil pressure overpowers the
force of the spring. Oil passing through the relief
valve bypasses the oil filter and flows directly into
the main oil hole in the engine.

LU-4 LUBRICATION SYSTEM - Troubleshooting
Problem
Oil leakage
Low oil pressure
High oil pressure
TROUBilESHOOTlNG
Possible cause
Cylinder head, cylinder block or oil pump
body damaged or cracked
Oil seal faulty
Gasket faulty
Oil leakage
Relief valve faulty
Oil pump faulty
Engine oil poor quality
Crankshaft bearing faulty
Connecting rod bearing faulty
Oil filter clogged
Relief valve faulty Remedy
Repair as necessary
Replace oil seal I
Replace gasket
Repair as necessary
Repair relief valve
Repair oil pump
Replace engine oil
Replace bearing
Replace bearing
Replace oil filter
Repair relief valve Page
EM-84
LU-8
W-8 ~

rutmwCiA rlON SYSTEM - Oil Pressure Che,ck’:q. .’ ‘f,“,; .! . ,_ _,, __ _ ,-tiu,e
Recommended
Viscositv (SAE):
I 1 1 1 h T-29 -,a 7 “F-20 0 TEMPEAATURE LY
I I b I I I I
I
z 4 16 36
/
RANGE ANTICIPA$O B&i% NEXT OIL CHANGE 100 ._. .-- . . .
?’ OIL PR,ESSURE’($liCK . .._.
-. - -_-. _
. _ _.. _ _...
1. 1 CHECK-ENGINE OIL QUALITY
Check the oil for deterioration, entry of water, discoloring .
or thinning.
2.
3.
4.
5.
6. If oil quality is poor, replace the oil,
Europe (‘IM-GE) and Australia *
Use API grade SE, SF or better and recommended
viscosity oil.
Europe (7M-GTE)
Use API grade SF or better and recommended
viscosity oil.
Others
Use API grade SC, SD, SE, SF or better and recom-
mended viscosity oil.
CHECK ENGINE OIL LEVEL
The oil level should be between the “L” and “F” marks on
the dipstick.
If low, check for leakage and add oil up to the “F” mark.
REMOVE OIL PRESSURE SENDER GAUGE
INSTALL OIL PRESSURE GAUGE
START ENGINE
Start engine and warm it up to normal operating tem-
perature.
MEASURE OIL PRESSURE
Oil pressure:
At idle 0.3 kg/cm2 (4.3 psi, 29 kPa1
or more
At 3,000 rpm 2.5 - 5.0 kg/cm
(36 - 71 psi, 245 - 490 kPa1
NOTE: Check for oil leakage after reinstalling the oil
pressure sender gauge.

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LUBRICATION SYSTEM
- Replacement.of Engine Oil and Oil Filter
L&.7*.
(d) Lightly screw in the oil filter to where you feel resis-
tance.
(el Then, using SST, tighten.the oil filter an extra 3/4
turn. .
SST 09228-07500
3. FILL WITH ENGINE OIL
(a) Clean and install the oil drain plug with a new gasket.
Torque: 350 kg-cm (25 ft-lb, 34 N.m)
(b) Fill the engine with new oil.
Oil capacity:
Dry fill
7M-GE MA (GCC Countries*)
5.0 liters (5.3 US qts, 4.4 Imp. qts)
‘/M-GE MA (Others)
4.9 liters (5.2 US qts, 4.3 Imp. qts)
7M-GE MS
5.3 liters (5.6 US qts, 4.7 Imp. qts)
7M-GTE (A/T)
5.0 liters (5.3 US qts, 4.4 Imp. qts)
7M-GTE (M/T)
5.1 liters (5.4 US qts, 4.5 Imp. qts)
Drain and refil
w/o oil filter change
MA
3.9 liters (4.1 US qts, 3.4 Imp. qts)
MS
4.1 liters (4.3 US qts, 3.6 Imp. qts)
w/ oil filter change
MA
4.2 liters (4.4 US qts, 3.7 Imp. qts)
MS
4.4 liters (4.7 US qts, 3.9 Imp. qts)
4.
START ENGINE AND CHECK FOR LEAKS
5. RECHECK ENGINE OIL LEVEL (See page LU-5)
’ GCC Countries: Soudi Arabia, Sultanate of Oman,
Bahrain, United Arab Emirates, Qatar, Kuwait.

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LU-6
LUBRICATION SYSTEM - Replacement-of Engine Oil and Oil Filter
REPLACEMENT OF ENGINE OIL
AND OIL FILTER
1.
DRAIN ENGINE OIL
(a) Remove the oil filler cap.
(b) Remove the oil drain plug and drain the oil into a con-
tainer.
2.
REPLACE OIL FILTER
(a) Using SST, remove the oil filter (located on right side
of the engine block).
SST 09228-07500
NOTE (7M-GTE):
Remove the oil filter taking it over the
engine mounting bracket and down between the bracket
and No. 1 suspension crossmember.
(b)
Clean and check the oil filter installation surface.
(c) Apply clean engine oil to the gasket of the new oil
filter. o