check engine TOYOTA CAMRY 2000 Service Owner's Manual

wDo not utilize timing belt tension when installing or
removing the mounting bolt of the camshaft timing
pulley.
If there are any defects as shown in the illustration,
check the following points:
(a) Premature parting
wCheck for proper installation.
wCheck the timing cover gasket for damage and
proper installation.
(b) If the belt teeth are cracked or damaged, check to see
if either camshaft or water pump is locked.
(e) If there is noticeable wear on the belt teeth, check the
timing cover for damage, correct gasket installation,
and for foreign material on the pulley teeth.
If necessary, replace the timing belt. (c) If there is noticeable wear or cracks on the belt face,
check to see if there are nicks on the side of the idler
pulley lock.
(d) If there is wear or damage on only one side of the belt,
check the belt guide and the alignment of each pulley.
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3. INSPECT TENSION SPRING
(a) Measure the free length of tension spring.
Free length:
46.0 mm (1.811 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 (at 50.5 mm (1.988 in.)):
Green color
32 ± 37 N (3.25 ± 3.75 k9f, 7.2 ± 8.3 lbf)
Silver color
47 ± 52 N (4.75 ± 5.25 kgf, 10.5 ± 11.8 lbf)
If the installed tension is not as specified, replace the
tension spring.
TIMING BELT INSTALLATION
(See Components for Removal and Installation)
1. INSTALL OIL PUMP PULLEY
(a) Align the cutouts of the pulley and shaft, and slide on
the pulley. 2. INSPECT IDLER PULLEYS
Check that the idler pulley turns smoothly.
If necessary, replace the idler pulley.
(b) Using SST, install the nut.
SST 09616 ± 30011
Torque: 28 N±m (290 kgf±cm, 21 ft±lbf)
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4. TEMPORARILY INSTALL NO.1 IDLER PULLEY AND
TENSION SPRING
(a) Install the pulley with the bolt. Do not tighten the bolt
yet.
HINT: Use a bolt 42 mm (1.65 in.) in length.
(b) Install the tension spring.
(c) Pry the pulley toward the left as far as it will go and
tighten the bolt.
(d) Check that the idler pulley moves smoothly.
5. TEMPORARILY INSTALL TIMING BELT
NOTICE: The engine should be cold.
(a) Using the crankshaft pulley bolt, turn the crankshaft
and position the key groove of the crankshaft timing
pulley upward.
(b) Remove any oil or water on the crankshaft pulley, oil
pump pulley, water pump pulley, No. 1 idler pulley, No.
2 idler pulley and keep them clean.
(c) Install the timing belt on the crankshaft timing pulley,
oil pump pulley, No.1 idler pulley, water pump pulley
and No.2 idler pulley.
HINT (When re±using timing belt): Align the points
marked during removal, and install the belt with the
arrow pointing in the direction of engine revolution. 2. INSTALL CRANKSHAFT TIMING PULLEY
(a) Align the timing pulley set key with the key groove of
the pulley.
(b) Slide on the timing pulley, facing the flange side
inward.
3. INSTALL NO.2 IDLER PULLEY
(a) Install the pulley with the bolt.
Torque: 42 N±m (425 kgf±cm, 31 ft±lbf)
HINT: Use a bolt 35 mm (1.38 in.) in length.
(b) Check that the idler pulley moves smoothly.
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11. INSTALL TIMING BELT
HINT. (When re±using timing belt):
wCheck that the matchmark on the timing belt
matches the end of the No.1 timing belt cover.
If the matchmark does not align, shift the meshing of
the timing belt and crankshaft timing pulley until they
align. (See page EG1±29)
(a) Remove any oil or water on the camshaft timing
pulley, and keep it clean.
(b) Install the timing belt, and check the tension between
the crankshaft timing pulley and camshaft timing
pulley. (b) Using SST, turn the camshaft, and align the hole of
the camshaft timing pulley with the timing mark of the
bearing cap.
SST 09278±54012
wAlign the matchmarks of the timing belt and
camshaft timing pulley.
12. CHECK VALVE TIMING
(a) Loosen the No.1 idler pulley bolt 1/2 turn.
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13. INSTALL NO.2 TIMING BELT COVER
(a) Install the 2 gaskets to the No. 1 and No.2 belt covers.
(b) install the belt cover with the 5 bolts.
(c) Align the 2 clamps of the engine wire with cover
mounting bolts. (d) w/ Green Tension Spring:
Slowly turn the crankshaft pulley 1 and 7/8 revolu±
tions, and align its groove with the mark at 45
BTDC
(for No.1 cylinder) of the No.1 timing belt cover.
NOTICE: Always turn the crankshaft clockwise.
(c) Check that each pulley aligns with the timing marks as
shown in the illustration..
If the timing marks do not align, remove the timing
belt and reinstall it. (b) Turn the crankshaft pulley 2 revolutions from TDC to
TDC.
NOTICE: Always turn the crankshaft clockwise.
(e) Torque the mounting bolt of the No.1 idler pulley.
Torque: 42 N±m (425 kgf±cm, 31 ft±lbf)
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3. INSPECT CYLINDER HEAD
A. Inspect for flatness
Using a precision straight edge and thickness gauge,
measure the surfaces contacting the cylinder block
and the manifolds for warpage.
Maximum warpage:
Cylinder block side
0.05 mm (0.0020 in.)
Manifold side
0.08 mm (0.0031 in.)
If warpage is greater than maximum, replace the cylin±
der head.
B. Inspect for cracks
Using a dye penetrant, check the combustion cham±
bers, intake ports, exhaust ports and cylinder block
surface for cracks.
If cracked, replace the cylinder head. D. Clean cylinder head
Using a soft brush and solvent, thoroughly clean the
cylinder head. C. Clean valve guide bushings
Using a valve guide bushing brush and solvent, clean
all the guide bushings.
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(c) Check the valve head margin thickness.
Standard margin thickness:
0.8 ± 1.2 mm (0.031 ± 0.047 in.)
Minimum margin thickness:
0.5 mm (0.020 in.)
If the margin thickness is less than minimum, replace
the valve. 7. INSPECT AND GRIND VALVES
(a) Grind the valve enough to remove pits and carbon.
(b) Check that the valve is ground to the correct valve
face angle.
Valve face angle:
44.5
(g) Using SST and a hammer, tap in a new guide bushing
until the snap ring makes contact with the cylinder
head.
SST 09201± 70010
(h) Using a sharp6 mm reamer, ream the guide bushing
to obtain the standard specified clearance (See page
EG1±57) between the guide bushing and valve stem. (f) Gradually heat the cylinder head to 80 ±100
C (117
±
212
F).
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(d) Check the valve overall length.
Standard overall length:
Intake
97.60 mm (3.8425 in.)
Exhaust
98.45 mm (3.8760 in.)
Minimum overall length:
Intake
97.1 mm (3.823 in.)
Exhaust
98.0 mm (3.858 in.)
If the overall length is less than minimum, replace the
valve.
(b) Check the valve seating position.
Apply a light coat of prussian blue (or white lead) to
the valve face. Lightly press the valve against the
seat. Do not rotate valve.
(c) Check the valve face and seat for the following:
If blue appears 360
around the face, the valve is
concentric. If not, replace the valve. (e) Check the surface of the valve stem tip for wear.
If the valve stem tip is worn, resurface the tip with a
grinder or replace the valve.
NOTICE: Do not grind off more than minimum.
8. INSPECT AND CLEAN VALVE SEATS
(a) Using a 45
carbide cutter, resurface the valve seats.
Remove only enough metal to clean the seats.
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wIf blue appears 360
around the valve seat, the
guide and face are concentric. If not, resurface
the seat.
wCheck that the seat contact is in the middle of the
valve face with the following width:
1.0 ± 1.4 mm (0.039 ± 0.055 in.)
If not, correct the valve seat as follows:
(1) If the seating is too high on the valve face, use
30
and 45
cutters to correct the seat.
(2) If the seating is too low on the valve face, use
75
and 45
cutters to correct the seat.
9. INSPECT VALVE SPRINGS
(a) Using a steel square, measure the deviation of the
valve spring.
Maximum deviation:
2.0 mm (0.079 in.)
If the deviation is greater than maximum, replace the
valve spring.
(b) Using a vernier caliper, measure the free length of the
valve spring.
Free length:
41.96 ± 41.99 mm (1.6520 ± 1.6531 in.)
If the free length is not as specified, replace the valve
spring. (d) Hand±lap the valve and valve seat with an abrasive
compound.
(e) After hand±lapping, clean the valve and valve seat.
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B. Inspect cam lobes
Using a micrometer, measure the cam lobe height.
Standard cam lobe height:
Intake
42.01 ± 42.11 mm (1.6539 ± 1.6579 in.)
Exhaust
40.06 ± 40.18 mm (1.5772 ± 1.5811 In.)
Minimum cam lobe height:
Intake
41.90 mm (1.6496 in.)
Exhaust
39.95 mm (1.5728 in.)
If the cam lobe height is less than minimum, replace
the camshaft. 10. INSPECT CAMSHAFTS AND BEARINGS
A. Inspect camshaft for runout
(a) Place the camshaft on V ± blocks.
(b) Using a dial indicator, measure the circle runout at the
center journal.
Maximum circle runout:
0.04 mm (0.0016 in.)
If the circle runout is greater than maximum, replace
the camshaft.(c) Using a spring tester, measure the tension of the valve
spring at the specified installed length.
Installed tension:
164 ± 189 N (16.7 ± 19.3 kgf, 36.8 ± 42.5 lbf)
at 34.7 mm (1.336 in.)
If the installed tension is not as specified, replace the
valve spring.
C. Inspect camshaft journals
Using a micrometer, measure the journal diameter.
Journal diameter:
26.959 ± 28.975 mm 11.0814 ± 1.0620 in.)
If the journal diameter is not as specified, check the oil
clearance.
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