Timing TOYOTA CAMRY 2000 Service User Guide

4. FURTHER CHECK IGNITION TIMING
Ignition timing:
0 ± 10
BTDC @ idle
(Transmission in neutral position)
HINT: The timing mark moves in a range between 0

and 10
. (c) Loosen the bolt (California) or 2 bolts (except Califor±
nia), and adjust by turning the distributor.
(d) Tighten the bolt (California) or 2 bolts (except Califor±
nia), and recheck the ignition timing.
Torque: 19 N±m (195 kgf±cm, 14 ft±lbf)
5. DISCONNECT TACHOMETER AND TIMING LIGHT
FROM ENGINE(e) Remove the SST.
SST 09843±18020
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IDLE SPEED INSPECTION
1. INITIAL CONDITIONS
(a) Engine at normal operating temperature
(b) Air cleaner installed
(c) All pipes and hoses of air induction system connected
(d) All vacuum lines properly connected
(e) MFI/SFI system wiring connectors fully plugged
(f) All operating accessories switched OFF
(g) Ignition timing set correctly
(h) Transmission in neutral position
2. CONNECT TACHOMETER
Connect the test probe of a tachometer to terminal IG
(±) of the data link connector 1.
NOTICE:
wNever allow the tachometer terminal to touch
ground as it could result in damage to the Igniter
and/or ignition coil.
wAs some tachometers are not compatible with this
ignition system, we recommend that you confirm
the compatibility of yours before use.
(b) Check the idle speed.
Idle speed (w/ Cooling fan OFF):
750+50 rpm
If the idle speed is not as specified, check the IAC
system.
4. DISCONNECT TACHOMETER 3. INSPECT IDLE SPEED
(a) Race the engine at 2,500 rpm for approx. 90 seconds.
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IDLE AND OR 2,500 RPM CO/HC
CHECK
HINT: This check is used only to determine whether or
not the idle CO/HC complies with regulations.
1. INITIAL CONDITIONS
(a) Engine at normal operating temperature
(b) Air cleaner installed
(c) All pipes and hoses of air induction system connected
(d) All accessories switched OFF
(e) All vacuum lines properly connected
HINT: All vacuum hoses for EGR systems, etc. should
be properly connected.
(f) MFI/SFI system wiring connectors fully plugged
(g) Ignition timing set correctly
(h) Transmission in neutral position
(i) Tachometer and CO/HC meter calibrated by hand.
4. INSERT CO/HC METER TESTING PROBE AT LEAST
40 cm (1.3 ft) INTO TAILPIPE DURING IDLING
5. IMMEDIATTELY CHECK CO/HC CONCENTRATION
AT IDLE AND/OR 2,500 RPM
Complete the measuring within 3 minutes.
HINT: When performing the 2 mode (2,500 rpm and
idle) test, follow the measurement order prescribed by
the applicable local regulations. 2. START ENGINE
3. RACE ENGINE AT 2,500 RPM FOR APPROX. 180
SECONDS
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Troubleshooting
If the CO/HC concentration does not comply with
regulations, perform troubleshooting in the order
given below.
(a) Check oxygen sensor operation.
(See page EG1±231)
(b) See the table below for possible causes, then inspect
and correct the applicable causes if necessary.
1. Faulty ignitions:
wIncorrect timing
wFouled, shorted or improperly gapped plugs
wOpen or crossed high±tension cords
wCracked distributor cap
2. Incorrect valve clearance
3. Leaky EGR valve
4. Leaky intake and exhaust valves
5. Leaky cylinder
1. Restricted air filter
2. Faulty MFI/SFI systems
wFaulty pressure regulator
wClogged fuel return line
wDefective engine coolant temp. sensor
wDefective intake air temp. sensor
wFaulty ECM
wFaulty injector
wFaulty throttle position sensor
wMAP sensor 1. Vacuum leaks:
wPCV hose
wEGR valve
wIntake manifold
wThrottle body
w!AC valve
wBrake booster line
2. Lean mixture causing misfire
Rough idle
(Black smoke from exhaust) Rough idle
(Fluctuating HC reading) Rough idleProblems
Causes
Normal
High High High
HighLow
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TIMING BELT
COMPONENTS FOR REMOVAL AND
INSTALLATION
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TIMING BELT REMOVAL
(See Components for Removal and Installation)
1. DISCONNECT NEGATIVE (±) TERMINAL CABLE
FROM BATTERY
CAUTION: Work must be started after 90 seconds from
the time the ignition switch is turned to the 'LOCK'
position and the negative (±) terminal cable is discon±
nected from the battery.
2. REMOVE ENGINE COOLANT RESERVOIR TANK
(a) Disconnect the reservoir hose.
(b) While pushing the tab of the bracket, remove the
reservoir tank.
3. REMOVE GENERATOR (See page CH±10)
4. REMOVE RH FRONT WHEEL
5. REMOVE RH FENDER APRON SEAL
8. REMOVE ENGINE MOVING CONTROL ROD
Remove the 3 bolts and control rod.
9. DISCONNECT CONNECTOR FROM GROUND WIRE
ON RH FENDER APRON7. SLIGHTLY JACK UP ENGINE
Raise the engine enough to remove the weight from
the engine mounting on the right side. 6. REMOVE PS DRIVE BELT
Loosen the 2 bolts, and remove the drive belt.
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11. REMOVE SPARK PLUGS
(a) Disconnect the high ± tension cords at the rubber
boot.
DO NOT pull on the cords.
NOTICE: Pulling on or bending the cords may damage the
conductor inside.
13. SET NO.1 CYLINDER TO TDC/COMPRESSION
(a) Turn the crankshaft pulley and align its groove with
timing mark ª0º of the No.1 timing belt cover. 12. REMOVE NO.2 TIMING BELT COVER
Remove the 5 bolts, timing belt cover and 2 gaskets.10. REMOVE No.2 ENGINE MOUNTING BRACKET
Remove the 3 bolts and mounting bracket.
(b) Using a 16 mm plug wrench, remove the spark plug.
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14. REMOVE TIMING BELT FROM CAMSHAFT TIMING
PULLEY
HINT (When re±using timing belt): Place the match±
marks on the timing belt and camshaft timing pulley,
and place matchmark on timing belt to match the end
of the No.1 timing belt cover.
15. REMOVE CAMSHAFT TIMING PULLEY
Using SST, remove the bolt, plate washer and timing
pulley.
SST 09249±63010 and 09278±54012(b) Check that the hole of the camshaft timing pulley is
aligned with the timing mark of the bearing cap.
If not, turn the crankshaft one revolution (360'*).
(a) Loosen the mounting bolt of the No.1 idler pulley and
shift the pulley toward the left as far as it will go, and
temporarily tighten it.
(b) Remove the timing belt from the camshaft timing
pulley.
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HINT (When re±using timing belt): After loosening
the crankshaft pulley bolt, check that the timing belt
matchmark aligns with the end of the No. 1 timing belt
cover when the crankshaft pulley groove is aligned
with the timing mark ª0º of the No. 1 timing belt cover.
If the matchmark does not align, align as follows:
When matchmark is misaligned counterclockwise:
wAlign the rnatchmarks by pulling the timing belt up
on the No.1 idler pulley side while turning the
crankshaft pulley clockwise. When matchmark is misaligned clockwise:
wAlign the matchmark by pulling the timing belt up
on the water pump pulley side while turning the
crankshaft pulley counterclockwise.
wAfter aligning the matchmark, hold the timing
belt, turn the crankshaft pulley clockwise, and
align its groove with timing mark ª0º of the No.1
timing belt cover. 16. REMOVE CRANKSHAFT PULLEY
(a) Using SST, remove the pulley bolt.
SST 09213±54015 (91651± 60855),
09330±00021
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(b) Using SST, remove the pulley.
SST 09213±60017 (09213±00020, 09213±00030,
09213±00060)
HINT (When re±using timing belt): Remove the pulley
without turning it.
19. REMOVE TIMING BELT
HINT (When re±using timing belt): Draw a direction
arrow on the timing belt (in the direction of engine
revolution), and place matchmarks on the timing belt
and crankshaft timing pulley.wAfter aligning the matchmark, hold the timing
belt, turn the crankshaft pulley counterclockwise,
and align its groove with timing mark ª0º of the
No.1 timing belt cover.
17. REMOVE No.1 TIMING BELT COVER
Remove the 4 bolts, timing belt cover and gasket.
18. REMOVE TIMING BELT GUIDE
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