TOYOTA CAMRY 1999 Service Repair Manual

A06649
Manifold
Stay M/T and California A/T
Manifold
Stay
Except M/T and California A/T
P18769
A01522
Manifold
Stay California A/T
Manifold Stay
(Except M/T)Except California A/T
EM±36
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
1322 Author: Date:
25. REMOVE RH EXHAUST MANIFOLD
(a) California A/T:
Disconnect the A/F sensor connector.
(b) Except California A/T:
Disconnect the heated oxygen sensor (bank 1 sensor 1)
connector.
(c) Remove the bolt, nut and exhaust manifold stay.
(d) Remove the 6 nuts, exhaust manifold and gasket.
26. REMOVE PS PUMP BRACKET
Remove the 3 bolts and pump bracket.
27. REMOVE LH EXHAUST MANIFOLD
(a) California A/T:
Disconnect the A/F sensor connector.
(b) Except California A/T:
Disconnect the heated oxygen sensor (bank 2 sensor 1)
connector.
(c) Except M/T:
Remove the bolt, nut and exhaust manifold stay.
(d) Remove the 6 nuts, exhaust manifold and gasket.
28. REMOVE CAMSHAFT POSITION SENSOR

P12710
O±Ring
A01816
P12811Align Intake
P12871
Main Gear
Sub±Gear
Service Bolt Intake
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
EM±37
1323 Author: Date:
29. REMOVE OIL DIPSTICK AND GUIDE
(a) Remove the bolt holding the dipstick guide to the LH cylin-
der head.
(b) Pull out the dipstick guide together with the dipstick from
the No.1 oil pan.
(c) Remove the O±ring from the dipstick guide.
30. REMOVE CYLINDER HEAD COVERS
Remove the 8 bolts, cylinder head cover and gasket. Remove
the 2 cylinder head covers.
31. REMOVE CAMSHAFTS OF RH CYLINDER HEAD
NOTICE:
Since the thrust clearance of the camshaft is small, the
camshaft must be held level while it is being removed. If the
camshaft is not kept level, the portion of the cylinder head
receiving the shaft thrust may crack or be damaged, caus-
ing the camshaft to seize or break. To avoid this, the follow-
ing steps should be carried out.
(a) Remove the intake camshaft.
(1) Align the timing marks (2 dot marks) of the camshaft
drive and driven gears by turning the camshaft with
a wrench.
(2) Secure the exhaust camshaft sub±gear to the main
gear with a service bolt.
Recommended service bolt:
Thread diameter6 mm
Thread pitch1.0 mm
Bolt length16 ± 20 mm (0.63 ± 0.79 in.)

P12780
Intake
7 85 6
3 41 2
9 10
P12888
7
85
6
3
41
2
9
10 Exhaust
P12917
Align Intake EM±38
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
1324 Author: Date:
HINT:
When removing the camshaft, mark certain that the torsional
spring force of the sub±gear has been eliminated by the above
operation.
(3) Uniformly loosen and remove the 10 bearing cap
bolts, in several passes, in the sequence shown.
(4) Remove the 5 bearing caps and intake camshaft.
(b) Remove the exhaust camshaft.
(1) Uniformly loosen and remove the 10 bearing cap
bolts, in several passes, in the sequence shown.
(2) Remove the 5 bearing caps, oil seal and exhaust
camshaft.
32. REMOVE CAMSHAFTS OF LH CYLINDER HEAD
NOTICE:
Since the thrust clearance of the camshaft is small, the
camshaft must be held level while it is being removed. If the
camshaft is not kept level, the portion of the cylinder head
receiving the shaft thrust may crack or be damaged, caus-
ing the camshaft to seize or break. To avoid this, the follow-
ing steps should be carried out.
(a) Remove the intake camshaft.
(1) Align the timing marks (1 dot mark) of the camshaft
drive and driven gears by turning the camshaft with
a wrench.

P12873Main Gear
Sub±GearService Bolt Intake
P12958
Intake
7
85
6
3
41
2
9
10
P12886
7
85 6
3 41 2
9 10 Exhaust
P12596
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
EM±39
1325 Author: Date:
(2) Secure the exhaust camshaft sub±gear to the main
gear with a service bolt.
Recommended service bolt:
Thread diameter6 mm
Thread pitch1.0 mm
Bolt length16 ± 20 mm (0.63 ± 0.79 in.)
HINT:
When removing the camshaft, make sure that the torsional
spring force of the sub±gear has been eliminated by the above
operation.
(b) Uniformly loosen and remove the 10 bearing cap bolts, in
several passes, in the sequence shown.
(c) Remove the 5 bearing caps and intake camshaft.
(d) Remove the exhaust camshaft.
(1) Uniformly loosen and remove the 10 bearing cap
bolts, in several passes, in the sequence shown.
(2) Remove the 5 bearing caps, oil seal and exhaust
camshaft.
HINT:

Arrange the camshafts in the correct order.

Arrange the bearing caps in the correct order.
33. DISASSEMBLE EXHAUST CAMSHAFTS
(a) Mount the hexagonal wrench head portion of the cam-
shaft in a vise.
NOTICE:
Be careful not to damage the camshaft.

P12797
SST
P12590
P12816
Recessed Head Bolt
8 mm Hexagon Wrench
Front EM±40
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
1326 Author: Date:
(b) Using SST, turn the sub±gear counterclockwise, and re-
move the service bolt.
SST 09960±10010 (09962±01000, 09963±00500)
(c) Using snap ring pliers, remove the snap ring.
(d) Remove the wave washer, camshaft sub±gear, and cam-
shaft gear spring.
HINT:
Arrange the camshaft sub±gears and gear springs (RH and LH
side).
34. REMOVE CYLINDER HEADS
(a) Using an 8 mm hexagon wrench, remove the cylinder
head (recessed head) bolt on each cylinder head, then re-
peat for the other side, as shown.

P12735
12 Pointed Head Bolt
Front1 23
45
67
8
1
23 4
5 6
78
P12424
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
EM±41
1327 Author: Date:
(b) Uniformly loosen and remove the 8 cylinder head (12
pointed head) bolts on each cylinder head, in several
passes, in the sequence shown, then repeat for the other
side, as shown. Remove the 16 cylinder head bolts and
plate washers.
NOTICE:
Head warpage or cracking could result from removing
bolts in an incorrect order.
(c) Lift the cylinder head from the dowels on the cylinder
block and place the 2 cylinder heads on wooden blocks
on a bench.
HINT:
If the cylinder head is difficult to lift off, pry between the cylinder
head and cylinder block with a screwdriver.
NOTICE:
Be careful not to damage the contact surfaces of the cylin-
der head and cylinder block.

EM04T±03
P12683
P12476
SST
P12686
P12720
Magnetic Finger EM±42
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
1328 Author: Date:
DISASSEMBLY
1. REMOVE VALVE LIFTERS AND SHIMS
HINT:
Arrange the valve lifters and shims in the correct order.
2. REMOVE VALVES
(a) Using SST, compress the valve spring and remove the 2
keepers.
SST 09202±70020 (09202±00010)
(b) Remove the spring retainer, valve spring and valve.
(c) Using needle±nose pliers, remove the oil seal.
(d) Using compressed air and a magnetic finger, remove the
spring seat by blowing air.
HINT:
Arrange the valves, valve springs, spring seats and spring re-
tainers in the correct order.

EM0YP±01
P12689
P12492
P12700
P12701
P12703
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
EM±43
1329 Author: Date:
INSPECTION
1. CLEAN TOP SURFACES OF PISTONS AND
CYLINDER BLOCK
(a) Turn the crankshaft, and bring each piston to top dead
center (TDC). Using a gasket scraper, remove all the car-
bon from the piston top surface.
(b) Using a gasket scraper, remove all the gasket material
from the cylinder block surface.
(c) Using compressed air, blow carbon and oil from the bolt
holes.
CAUTION:
Protect your eyes when using high pressure compressed
air.
2. REMOVE GASKET MATERIAL
Using a gasket scraper, remove all the gasket material from the
cylinder block contact surface.
NOTICE:
Be careful not to scratch the cylinder block contact sur-
face.
3. CLEAN COMBUSTION CHAMBERS
Using a wire brush, remove all the carbon from the combustion
chambers.
NOTICE:
Be careful not to scratch the cylinder block contact sur-
face.
4. CLEAN CYLINDER HEADS
Using a soft brush and solvent, thoroughly clean the cylinder
head.

P12755
P12733
P12702
EM0580
EM±44
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
1330 Author: Date:
5. CLEAN VALVE GUIDE BUSHINGS
Using a valve guide bushing brush and solvent, clean all the
guide bushings.
6. INSPECT FOR FLATNESS
Using a precision straight edge and feeler gauge, measure the
surfaces contacting the cylinder block and the manifolds for
warpage.
Maximum warpage: 0.10 mm (0.0039 in.)
If warpage is greater than maximum, replace the cylinder head.
7. INSPECT FOR CRACKS
Using a dye penetrant, check the combustion chamber, intake
ports, exhaust ports and cylinder block surface for cracks.
If cracked, replace the cylinder head.
8. CLEAN VALVES
(a) Using a gasket scraper, chip off any carbon from the valve
head.
(b) Using a wire brush, thoroughly clean the valve.

P12754
Z00052
Z00054
44.5°
EM0181
Margin Thickness
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
EM±45
1331 Author: Date:
9. INSPECT VALVE STEMS AND GUIDE BUSHINGS
(a) Using a caliper gauge, measure the inside diameter of the
guide bushing.
Bushing inside diameter:
5.510 ± 5.530 mm (0.2169 ± 0.2177 in.)
(b) Using a micrometer, measure the diameter of the valve
stem.
Valve stem diameter:
Intake5.470 ± 5.485 mm (0.2154 ± 0.2159 in.)
Exhaust5.465 ± 5.480 mm (0.2152 ± 0.2157 in.)
(c) Subtract the valve stem diameter measurement from the
guide bushing guide bushing inside diameter measure-
ment.
Standard oil clearance:
Intake0.025 ± 0.060 mm (0.0010 ± 0.0024 in.)
Exhaust0.030 ± 0.065 mm (0.0012 ± 0.0026 in.)
Maximum oil clearance:
Intake0.08 mm (0.0031 in.)
Exhaust0.10 mm (0.0039 in.)
If the clearance is greater than maximum, replace the valve and
guide bushing.
10. 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°
(c) Check the valve head margin thickness.
Standard margin thickness: 1.0 mm (0.039 in.)
Minimum margin thickness: 0.5 mm (0.020 in.)
If the margin thickness is less than minimum, replace the valve.