TOYOTA CAMRY 2000 Service Repair Manual

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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E. Inspect camshaft gear spring
Using a vernier caliper, measure the free distance
between the spring ends.
Free distance:
22.5 ± 22.9 mm (0.886 ± 0.902 in.)
If the free distance is not as specified, replace the gear
spring.
F. Inspect camshaft journal oil clearance
(a) Clean the bearing caps and camshaft journals.
(b) Place the camshafts on the cylinder head.
(c) Lay a strip of Plastigage across each of the camshaft
journals. D. Inspect camshaft bearings
Check that bearings for flaking and scoring.
If the bearings are damaged, replace the bearing caps
and cylinder head as a set.
(d) Install the bearing caps.
(See step 4 on pages EG1±69 to 71)
Torque: 19 N±m (190 kgf±cm, 14 ft±lbf)
NOTICE: Do not turn the camshaft.
(e) Remove the bearing caps.
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G. Inspect camshaft thrust clearance
(a) Install the camshaft.
(See step 4 on pages EG1±69 to 71)
(b) Using a dial indicator, measure the thrust clearance
while moving the camshaft back and forth.
Standard thrust clearance:
Intake
0.045 ± 0.100 mm (0.0018 ± 0.0039 in.)
Exhaust
0.030 ± 0.085 mm (0.0012 ± 0.0033 in.)
Maximum thrust clearance:
Intake
0.12 mm (0.0047 in.)
Exhaust
0.10 mm (0.0039 in.)
If the thrust clearance is greater than maximum, re±
place the camshaft. If necessary, replace the bearing
caps and cylinder head as a set.
H. Inspect camshaft gear backlash
(a) Install the camshafts without installing the exhaust
cam sub gear.
(See step 4 on pages EG1±69 to 71)
(b) Using a dial indicator, measure the backlash.
Standard backlash:
0.020 ± 0.200 mm (0.0008 ± 0.0079 in.)
Maximum backlash:
6.30 mm (0.0188 in.)
If the backlash is greater then maximum, replace the
camshafts. (f) Measure the Plastigage at its widest point.
Standard oil clearance:
0.025 ± 0.062 mm (0.0010 ± 0.0024 In.)
Maximum oil clearance:
0.10 mm (0.0039 in.)
If the oil clearance is greater than maximum, replace
the camshaft. If necessary, replace the bearing caps
and cylinder head as a set.
(g) Completely remove the Plastigage.
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(c) Subtract the lifter diameter measurement from the
lifter bore diameter measurement.
Standard oil clearance:
0.024 ± 0.052 mm (0.0009 ± 0.0020 in.)
Maximum oil clearance:
0.07 mm (0.0028 In.)
If the oil clearance is greater than maximum, replace
the lifter. If necessary, replace the cylinder head.
12. INSPECT MANIFOLDS
Using a precision straight edge and feeler gauge, mea±
sure the surface contacting the cylinder head for war±
page.
Maximum warpage:
0.30 mm (0.0 118 In.)
If warpage is greater than maximum, replace the man±
ifold. 11. INSPECT VALVE LIFTERS AND LIFTER BORES
(a) Using a caliper gauge, measure the lifter bore diame±
ter of the cylinder head.
Lifter bore diameter:
31.000 ± 31.018 mm (1.2205 ± 1.2213 In.)
(b) Using a micrometer, measure the lifter diameter.
Lifter diameter:
30.966 ± 30.976 mm (1.2191 ± 1.2195 in.)
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CYLINDER HEAD ASSEMBLY
(See Components for Removal and Installation)
HINT:
wThoroughly clean all parts to be assembled.
Before installing the parts, apply new engine oil to all
sliding and rotating surfaces.
wReplace all gaskets and oil seals with new ones.
(c) Using SST, compress the valve spring and place the 2
keepers around the valve stem.
SST 09202 ± 70010(b) Install the following parts:
(1) Valve
(2) Spring seat
(3) Valve spring
(4) Spring retainer 1. INSTALL VALVES
(a) Using SST, push in a new oil seal.
SST 09201 ±41020
HINT: The intake valve oil seal is brown and the
exhaust valve oil seal is black.
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CYLINDER HEAD INSTALLATION
(See Components for Removal and Installation)
1. INSTALL CYLINDER HEAD
A. Place cylinder head on cylinder block
(a) Place a new cylinder head gasket in position on the
cylinder block.
NOTICE: Be careful of the installation direction.
(b) Place the cylinder head in position on the cylinder
head gasket.
B. Install cylinder head bolts
HINT:
wThe cylinder head bolts are tightened in 2 progressive
steps (steps (b) and (d)).
wIf any cylinder head bolt is broken or deformed, re±
place it.
(a) Apply a light coat of engine oil on the threads and
under the heads of the cylinder head bolts.
(b) Using SST, install and uniformly tighten the 10 cylin±
der head bolts and plate washers in several passes, in
the sequence shown.
SST 09011± 38121
Torque: 49 N±m (500 kgf±cm, 36 ft±lbf)
If any one of the cylinder head bolts does not meet the
torque specification, replace the cylinder head bolt.2. INSTALL VALVE LIFTERS AND SHIMS
(a) Install the valve lifter and shim.
(b) Check that the valve lifter rotates smoothly by hand. (d) Using a plastic±faced hammer, lightly tap the valve
stem tip to assure proper fit.
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2. INSTALL SPARK PLUG TUBES
(a) Clean the cylinder head tube holes of any residua!
adhesive, oil or foreign particles. Remove any oil with
kerosene or gasoline.
(b) Screw the threads of the spark plug tube coated with
adhesive into the cylinder head.
(c) Using the spark plug tube nut and a 30 mm socket
wrench, tighten the spark plug tubes.
Torque: 39 N±m (400 kgf±cm, 29 ft±lbf)
(b) Install the following parts:
(1) Camshaft gear spring
(2) Camshaft sub gear
(3) Wave washer
HINT: Align the pins on the gears with the spring ends.(d) Retighten the cylinder head bolts 90
in the sequence
shown on the previous page.
(e) Check that the painted mark is now at a 90
angle to
front.
3. ASSEMBLY EXHAUST CAMSHAFT
(a) Mount the hexagon wrench head portion of the cam±
shaft in a vise.
NOTICE: Be careful not to damage the camshaft.
(c) Mark the front of the cylinder head bolt head with
paint.
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A. Install intake camshaft
(a) Apply MP grease to the thrust portion of the cam±
shaft.
(b) Place the intake camshaft at 80±1155 BTDC of cam±
shaft angle, on the cylinder head.
HINT: The above angle arrows the No.1 and No.3
cylinder cam lobes of the intake camshaft to push
their valve lifters evenly. 4. INSTALL CAMSHAFTS
NOTICE: Since the thrust clearance of the camshaft is
small, the camshaft must be kept level while it is being
installed. If the camshaft is not kept level, the portion of
the cylinder head receiving the shaft thrust may crack or
be damaged, causing the camshaft to seize or break. To
avoid this, the following steps should be carried out.
(d) Insert a service bolt (A) into the service hole of the
camshaft sub gear.
(e) Using a screwdriver, align the holes of the camshaft
main gear and sub gear by turning camshaft sub gear
clockwise, and install a service bolt (13).
NOTICE: Be careful not to damage the camshaft.
(c) Apply seal packing to the No. 1 bearing cap as shown.
Seal packing:
Part No.08826 ±00080 or equivalent (c) Using snap ring pliers, install the snap ring.
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B. Install exhaust camshaft
(a) Set the knock pin of the intake camshaft at 10±455
BTDC of camshaft angle.
HINT: The above angle allows the No.2 and No.4
cylinder cam lobes of the exhaust camshaft to push
their valve lifters evenly.(e) Apply a light coat of engine oil on the threads and
under the heads of the bearing cap bolts.
(f) Install and uniformly tighten the 10 bearing cap bolts
in several passes, in the sequence shown.
Torque: 19 N±m (190 kgf±cm, 14 ft±lbf)
(h) Using SST, tap in the oil seal.
SST 09223±4601 1 (d) Install the bearing caps in their proper locations.
(g) Apply MP grease to a new oil seal lip.
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