1996 TOYOTA TERCEL Service Repair Manual

P20412
Service Bolt Hole
P20409
P20415
Main Gear
Sub-Gear Service
Bolt
- ENGINE MECHANICALCYLINDER HEAD
EM-27
1996 TERCEL (RM440U)
29. REMOVE INTAKE AND EXHAUST CAMSHAFTS
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) Set the intake camshaft as shown in the illustration so that
the service bolt holes of the intake camshaft gears are di-
rectly above.
HINT:
This helps to lift the exhaust camshaft levelly and evenly by
pushing No.2 and No.4 cylinder cam lobes of the intake cam-
shaft toward their valve lifters.
(b) Remove the 4 bolts, No.1 and No.2 bearing caps.
(c) Remove the oil seal and housing plug.
(d) Secure the intake 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.

Z14275
7
351
48
22
6
P20359
Z14276
P20358
P20417
SST EM-28
- ENGINE MECHANICALCYLINDER HEAD
1996 TERCEL (RM440U)
(e) Uniformly loosen and remove the 8 No.3 bearing cap
bolts, in several passes, in the sequence shown.
(f) Remove the 4 bearing caps and intake camshaft.
HINT:
If the camshaft is not being lifted out straight and level, reinstall
the bearing cap with the 2 bolts.
Then alternately loosen and remove the 2 bearing cap bolts
with the camshaft gear pulled up.
NOTICE:
Do not pry on or attempt to force the camshaft with a tool
or other object.
(g) Uniformly loosen and remove the 8 No.3 bearing cap
bolts, in several passes, in the sequence shown.
(h) Remove the 4 bearing caps and intake camshaft.
HINT:
If the camshaft is not being lifted out straight and level, reinstall
the bearing cap with the 2 bolts.
Then alternately loosen and remove the 2 bearing cap bolts
with the camshaft gear pulled up.
NOTICE:
Do not pry on or attempt to force the camshaft with a tool
or other object.
30. DISASSEMBLE INTAKE CAMSHAFT
(a) Mount the hexagon head portion of the camshaft in a soft
jaw vise.
NOTICE:
Be careful not to damage the camshaft.
(b) Using SST, turn the sub-gear clockwise, and remove the
service bolt.
SST 09960-10010 (09962-0100, 09963-00500)

Z14274
(g)(c)
(e)(d)
P20420
Bi-Hexagon Wrench
12
3
4 56 7
8 9
10
P20405
- ENGINE MECHANICALCYLINDER HEAD
EM-29
1996 TERCEL (RM440U)
(c) Using snap ring pliers, remove the snap ring.
(d) Remove the wave washer.
(e) Remove the camshaft sub-gear.
(f) Remove the camshaft gear spring.
31. REMOVE CYLINDER HEAD
(a) Using a bi-hexagon wrench 8 mm, uniformly loosen and
remove the 10 cylinder head bolts, in several passes, in
the sequence shown.
NOTICE:
Cylinder head warpage or cracking could result from re-
moving bolts in incorrect order.
(b) Lift the cylinder head from the dowels on the cylinder
block and place the head on wooden blocks on a bench.
HINT:
If the cylinder head is difficult to lift off, pry with a screwdriver be-
tween the cylinder head and block saliences.
NOTICE:
Be careful not to damage the contact surfaces of the cylin-
der head and cylinder block.

EM9937
EM0JZ-03
P20416
SST
EM9939
EM-30
- ENGINE MECHANICALCYLINDER HEAD
1996 TERCEL (RM440U)
DISASSEMBLY
1. REMOVE NO.2 ENGINE HANGER
2. REMOVE STUD BOLT FOR CYLINDER HEAD COVER
3. REMOVE VALVE LIFTERS AND SHIMS
HINT:
Arrange the valve lifters and shims in correct order.
4. REMOVE VALVES
(a) Using SST, compress the valve spring and remove the 2
keepers.
SST 09202-70010
(b) Remove the spring retainer, valve spring, valve and
spring seat.
HINT:
Arrange the valves, valve springs, spring seats and spring re-
tainers in correct order.
(c) Using needle-nose pliers, remove the oil seal.

EM0K0-05
P20381
P20380
P20350
P20353
EG0031
- ENGINE MECHANICALCYLINDER HEAD
EM-31
1996 TERCEL (RM440U)
INSPECTION
1. CLEAN TOP SURFACES OF PISTONS AND CYL-
INDER 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. CLEAN CYLINDER HEAD
(a) Remove the gasket material.
(b) 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.
(c) Clean the combustion chambers.
(d) Using a wire brush, remove all the carbon from the com-
bustion chambers.
NOTICE:
Be careful not to scratch the cylinder block contact sur-
face.
(e) Clean the valve guide bushings.
(f) Using a valve guide bushing brush and solvent, clean all
the guide bushings.

P20354
P20421
Cylinder Block Side
Intake Manifold Side
Exhaust Manifold Side
P20351
EM0580
EM-32
- ENGINE MECHANICALCYLINDER HEAD
1996 TERCEL (RM440U)
(g) Clean the cylinder head.
(h) Using a soft brush and solvent, thoroughly clean the cylin-
der head.
3. INSPECT CYLINDER HEAD
(a) Inspect the for flatness.
(b) Using a precision straight edge and feeler gauge, mea-
sure the surfaces contacting the cylinder block and the
manifolds for warpage.
Maximum warpage:
Cylinder block side0.05 mm (0.0020 in.)
Manifold side0.05 mm (0.0020 in.)
If warpage is greater than maximum, replace the cylinder head.
(c) Inspect the for cracks.
(d) Using a dye penetrant, check the combustion chambers,
intake ports, exhaust ports and cylinder block surface for
cracks.
If cracked, replace the cylinder head.
4. CLEAN VALVES
(a) Using a gasket scraper, chip off any carbon from the valve
head.
(b) Using a wire brush, thoroughly clean the valve.

P20382
Z00052
Z00054
44.5°
EM0181
Margin Thickness
- ENGINE MECHANICALCYLINDER HEAD
EM-33
1996 TERCEL (RM440U)
5. INSPECT VALVE STEMS AND GUIDE BUSHINGS
(a) Using a caliper gauge, measure the inside diameter of the
guide bushing.
Bushing inside diameter:
6.010 - 6.030 mm (0.2366 - 0.2374 in.)
(b) Using a micrometer, measure the diameter of the valve
stem.
Valve stem diameter:
Intake5.970 - 5.985 mm (0.2350 - 0.2356 in.)
Exhaust5.965 - 5.980 mm (0.2348 - 0.2354 in.)
(c) Subtract the valve stem diameter measurement from the
guide bushing inside diameter measurement.
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 (See page EM-40).
6. 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:
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.

P03849
Overall Length
EM0255
P20367
45° Carbide Cutter
Z07819
Width
Z08336
45°
1.0 - 1.4 mm30° EM-34
- ENGINE MECHANICALCYLINDER HEAD
1996 TERCEL (RM440U)
(d) Check the valve overall length.
Standard overall length:
Intake93.45 mm (3.6791 in.)
Exhaust93.89 mm (3.6768 in.)
Minimum overall length:
Intake92.95 mm (3.6594 in.)
Exhaust93.39 mm (3.6768 in.)
If the overall length is less than minimum, 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.
7. INSPECT AND CLEAN VALVE SEATS
(a) Using a 45° carbide cutter, resurface the valve seats.
Remove only enough metal to clean the seats.
(b) Check the valve seating position.
(c) 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.
(d) Check the valve face and seat for the following:
(1) If blue appears 360° around the face, the valve is
concentric. If not, replace the valve.
(2) If blue appears 360° around the valve seat, the
guide and face are concentric. If not, resurface the
seat.
(3) Check 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 seats as follows:
(1) If the seating is too high on the valve face, use 30°
and 45° cutters to correct the seat.