1986 TOYOTA CAMRY V20 engine

COMPRESSION CHECK
HINT: If there is lack of power, excessive oil consumption or
poor fuel economy, measure the compression pressure.
1. WARM UP AND STOP ENGINE
Allow the engine to warm up to normal operating tempera-
ture.
2. DISCONNECT COLD START INJECTOR CONNECTOR
3. DISCONNECT DISTRIBUTOR CONNECTOR
4. REMOVE SPARK PLUGS (See page IG±6 or 11)
5. CHECK CYLINDER COMPRESSION PRESSURE
(a) Insert a compression gauge into the spark plug hole.
(b) Fully open the throttle.
(c) While cranking the engine, measure the compression pres-
sure.
HINT: Always use a fully charged battery to obtain engine
speed of 250 rpm or more.
(d) Repeat steps (a) through (c) for each cylinder.
NOTICE: This measurement must be in as short a time
as possible.
Compression pressure:
12.5 kg±cm
2 (178 psi, 1,226 kPa) or more
Minimum pressure:
10.0 kg/cm
2 (142 psi, 981 kPa)
Difference between each cylinder:
1.0 kg/cm
2 (14 psi, 98 kPa) or less
(e) if the cylinder compression in one or more cylinders is low,
pour a small amount of engine oil into the cylinder through
the spark plug hole and repeat steps (a) through (e) for cyl-
inders with low compression.
wIf adding oil helps the compression chances are that the pis-
ton rings and/or cylinder bore are worn or damaged.
wIf pressure stays low, a valve may be sticking or seating is im-
proper, or there may be leakage past the gasket.
6. REINSTALL SPARK PLUGS (See page IG±7 or 11)
Torque: 180 kg±cm 0 3 ft±Ib, 18 N±m)
7. RECONNECT DISTRIBUTOR CONNECTOR
8. RECONNECT COLD START INJECTOR CONNECTOR
± ENGINE MECHANICALCompression CheckEM±22

REMOVAL OF TIMING BELT
1. DISCONNECT CABLE FROM NEGATIVE TERMINAL
OF BATTERY
2. REMOVE RN FRONT WHEEL
3. REMOVE ENGINE RH UNDER COVER
4. REMOVE CRUISE CONTROL ACTUATOR
(See step 9 on page EM±108)
5. REMOVE DRIVE BELTS
6. REMOVE ALTERNATOR (See page CH±6)
7. REMOVE ALTERNATOR BRACKET
8. REMOVE RH MOUNTING STAY
(2WD)
Remove the three bolts and mounting stay.
TIMING BELT (3S±FE)
COMPONENTS
± ENGINE MECHANICALTiming Belt (3S±FE)EM±23

9. SLIGHTLY JACK UP ENGINE
.
Raise the engine enough to remove the weight from the en-
gine mounting on the right side.
10. REMOVE ENGINE RH MOUNTING INSULATOR AND
BRACKET
(a) (2WD)
Remove the four nuts, bolt and mounting insulator.
(b) (4WD)
Remove through bolt, two nuts and mounting insulator.
(c) Remove the three bolts and mounting bracket.
11. REMOVE SPARK PLUGS (See page IG±6)
13. SET NO.1 CYLINDER TO TDC/COMPRESSION
(a) Turn the crankshaft pulley and align its groove with the tim-
ing mark º0º of the No. 1 timing belt cover. (4WD)
Remove the bolt, nut, ground strap and mounting
stay.
12. REMOVE No.2 TIMING BELT COVER
Remove the five bolts, belt cover and gaskets.
± ENGINE MECHANICALTiming Belt (3S±FE)EM±24

(a) Loosen the mount bolt of the No. 1 idler pulley and shift
the pulley toward the left as far as it will go, tempo-
rarily tighten it.
(b) Remove the timing belt from the camshaft tinning
pulley. 14. REMOVE TIMING BELT FROM CAMSHAFT TIMING
PULLEY
HINT: If reusing the timing belt, place the matchmarks on
the timing belt and camshaft timing pulley.
15. REMOVE CAMSHAFT TIMING PULLEY
Using SST, remove the bolt, plate washer and pulley.
SST 09278±54012
16. REMOVE CRANKSHAFT PULLEY
(a) Using SST, remove the pulley mount bolt.
SST 09213±54015 (09214±00030) and 09330±00021 (b) Check that the hole of the camshaft timing pulley is aligned
with the alignment mark of the bearing cap.
If not, turn the crankshaft one revolution (360
°).
EM3334
± ENGINE MECHANICALTiming Belt (3S±FE)EM±25

18. REMOVE TIMING BELT AND BELT GUIDE
HINT: If reusing the tinning belt, draw a direction arrow on
the timing belt (in direction of engine revolution), and place
the matchmarks on the timing belt and crankshaft timing
pulley.
19. REMOVE NO.1 IDLER PULLEY AND TENSION SPRING
Remove the bolt, pulley and tension spring. (b) Using SST, remove the pulley.
SST 09213±60017 (09213±00020, 09213±00030
09213±00050)
17. REMOVE NO.1 TIMING BELT COVER
Remove the four bolts, belt cover and gasket.
20. REMOVE NO.2 IDLER PULLEY
Remove the bolt and pulley.
± ENGINE MECHANICALTiming Belt (3S±FE)EM±26

INSPECTION OF TIMING BELT COMPONENTS
1. INSPECT TIMING BELT
NOTICE:
wDo not bend, twist or turn the timing belt inside out.
wDo not allow the timing belt to come into contact with
oil, water or steam.
wDo not utilize timing belt tension when installing or
removing the mount bolt of the camshaft timing pulley.
If there are any defects as shown in the figures, check
the following points:
(a) Premature parting
wCheck for proper installation.
wCheck the timing cover gasket for damage and proper
installation. 21. REMOVE CRANKSHAFT TIMING PULLEY
If the pulley cannot be removed by hand, use two screwdriv-
ers.
HINT: Position shop rags as shown to prevent damage.
22. REMOVE OIL PUMP PULLEY
Using SST, remove the nut and pulley.
SST 09616±30011
(b) If the belt teeth are cracked or damaged, check to see
if either the camshaft, water pump is locked.
EM3338
± ENGINE MECHANICALTiming Belt (3S±FE)EM±27

3. INSPECT TENSION SPRING
(a) Measure the free length of tension spring.
Free length: 46.1 mm (1.815 in.)
If the free length is not as specified, replace the tension spring.
(b) Measure the tension of the tension spring at the specified
installed length.
Installed tension:
6.0 ± 7.0 kg (13.2 ± 15.4 Ib, 59 ± 69 N±m)
at 50.5 mm (1.988 in.)
If the installed tension is not as specified, replace the ten-
sion spring. (e) If there is noticeable wear on the belt teeth, check tim-
ing cover for damage and check for correct gasket
installation. Check for foreign material on the pulley
teeth.
If necessary, replace the timing belt. (c) If there are cracks or noticeable wear on the belt face,
check to see if there are nicks on the side of the idler
pulled lock.
2. INSPECT IDLER PULLEYS
Check the turning smoothness of the idler pulley.
If necessary, replace the idler pulley. (d) If there is wear or damage on only one side of the belt,
check the belt guide and the alignment of each
pulley.
± ENGINE MECHANICALTiming Belt (3S±FE)EM±28

INSTALLATION OF TIMING BELT
(See page EM±23)
1. INSTALL OIL PUMP PULLEY
(a) Align the cutouts of the pulley and shaft, and slide the
pulley.
(b) Using SST, install and torque the nut.
SST 09616±30011
Torque: 290 kg±cm (21 ft±Ib, 28 N±m)
4. TEMPORARILY INSTALL NO.1 IDLER PULLEY AND
TENSION SPRING
(a) Install the pulley with the bolt. Do not tighten the bolt yet.
(b) Install the tension spring.
(e) Pry the pulley toward the left as far as it will go and tighten
the bolt.
5. TEMPORARILY INSTALL TIMING BELT
NOTICE: The engine should be cold.
Install the timing belt on the crankshaft timing, oil pump,
No±2 idler and water pump pulleys.
HINT: If reusing the timing belt, align the points marked dur-
ing removal, and install the belt with the arrow pointing in
the direction of engine revolution.3. INSTALL NO.2 IDLER PULLEY
(a) Install the pulley with the bolt. Torque the bolt.
Torque: 425 kg±cm (31 ft±Ib, 42 N±m)
(b) Check that the pulley moves smoothly.
HINT: Remove any oil or water on the idler pulley and keep it
clean.2. INSTALL CRANKSHAFT TIMING PULLEY
Align the pulley set key with the key groove of the pulley,
and slide the pulley.
± ENGINE MECHANICALTiming Belt (3S±FE)EM±29