check engine TOYOTA RAV4 1996 Service Repair Manual

EM2534
Overall Length
EM0255
EM3300
45° Carbide
Cutter
Z00055
Width
− ENGINE MECHANICALCYLINDER HEAD
EM−47
1996 RAV4 (RM447U)
(d) Check the valve overall length.
Standard overall length:
Intake97.60 mm (3.8425 in.)
Exhaust98.45 mm (3.8760 in.)
Minimum overall length:
Intake97.1 mm (3.823 in.)
Exhaust98.0 mm (3.858 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 the minimum length.
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.
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.
If blue appears 360° around the valve seat, the
guide and face are concentric. If not, resurface the
seat.
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.)

EM0281
EM1628
EM2011
EM2538
EM3322
Free Distance
− ENGINE MECHANICALCYLINDER HEAD
EM−49
1996 RAV4 (RM447U)
(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 (1.366 in.)
If the installed tension is not as specified, replace the valve
spring.
9. INSPECT CAMSHAFTS
(a) Inspect the circle runout.
(1) Place the camshaft on V−blocks.
(2) 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 cam-
shaft.
(b) Using a micrometer, measure the cam lobe height.
Standard cam lobe height:
Intake42.01 − 42.11 mm (1.6539 − 1.6579 in.)
Exhaust40.06 − 40.16 mm (1.5772 − 1.5811 in.)
Minimum cam lobe height:
Intake41.90 mm (1.6496 in.)
Exhaust39.95 mm (1.5728 in.)
If the cam lobe height is less than minimum, replace the cam-
shaft.
(c) Using a micrometer, measure the journal diameter.
Journal diameter:
26.959 − 26.975 mm (1.0614 − 1.0620 in.)
If the journal diameter is not as specified, check the oil clear-
ance.
(d) Using vernier calipers, measure the free distance be-
tween the gear 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.

EM3371
Plastigage
EM3310
P00263
EM−50
− ENGINE MECHANICALCYLINDER HEAD
1996 RAV4 (RM447U)
(e) Inspect the journal oil clearance.
(1) Clean the bearing caps and camshaft journals.
(2) Check that bearings for flaking and scoring.
If the bearings are damaged, replace the bearing caps and cyl-
inder head as a set.
(3) Place the camshafts on the cylinder head.
(4) Lay a strip of Plastigage across each of the cam-
shaft journals.
(5) Install the bearing caps (See page EM−55).
NOTICE:
Do not turn the camshaft.
(6) Remove the bearing caps.
(7) 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 cam-
shaft. If necessary, replace the bearing caps and cylinder head
as a set.
(8) Completely remove the Plastigage.
(f) Inspect the camshaft thrust clearance.
(1) Install the camshaft (See page EM−55).
(2) Using a dial indicator, measure the thrust clearance
while moving the camshaft back and forth.
Standard thrust clearance:
Intake0.045 − 0.100 mm (0.0018 − 0.0039 in.)
Exhaust0.030 − 0.085 mm (0.0012 − 0.0033 in.)
Maximum thrust clearance:
Intake0.12 mm (0.0047 in.)
Exhaust0.10 mm (0.0039 in.)
If the thrust clearance is greater than maximum, replace the
camshaft. If necessary, replace the bearing caps and cylinder
head as a set.

EM0ET−02
P03274
SST
Z00573
SSTIntake
Painted
BlackExhaust
Painted
Brown
P03265
SST
P03276
EM−54
− ENGINE MECHANICALCYLINDER HEAD
1996 RAV4 (RM447U)
REASSEMBLY
HINT:
Thoroughly clean all parts to be assembled.
Before installing the parts, apply fresh engine oil to all slid-
ing and rotating surfaces.
Replace all gaskets and oil seals with new ones.
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.
(b) Install the valve, spring seat, valve spring and spring re-
tainer.
(c) Using SST, compress the valve spring and place the 2
keepers around the valve stem.
SST 09202−70020 (09202−00010)
(d) Using a plastic−faced hammer, lightly tap the valve stem
tip to assure proper fit.
2. INSTALL VALVE LIFTERS AND SHIMS
(a) Install the valve lifter and shim.
(b) Check that the valve lifter rotates smoothly by hand.

S01799
1086 1 3 9
4257
S01796
90°
90°Painted Mark
S01786
Z00058
(3)
(2)
(1) EM−56
− ENGINE MECHANICALCYLINDER HEAD
1996 RAV4 (RM447U)
(b) Install the cylinder head bolts.
HINT:
The cylinder head bolts are tightened in 2 progressive
steps (steps (b) and (d)).
If any cylinder head bolt is broken or deformed, replace
it.
(1) Apply a light coat of engine oil on the threads and
under the heads of the cylinder head bolts.
(2) Install and uniformly tighten the 10 cylinder head
bolts and plate washers, in several passes, in the
sequence shown.
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.
(3) Mark the front of the cylinder head bolt head with
paint.
(4) Retighten the cylinder head bolts 90° in the se-
quence shown above.
(5) Check that the painted mark is now at a 90° angle
to front.
7. INSTALL SPARK PLUG TUBES
(a) Clean the cylinder head tube holes of any residual adhe-
sive, 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)
8. ASSEMBLE EXHAUST CAMSHAFT
(a) Mount the hexagon wrench head portion of the camshaft
in a vise.
NOTICE:
Be careful not to damage the camshaft.
(b) Install the camshaft gear spring (1), camshaft sub gear (2)
and wave washer (3).
HINT:
Align the pins on the gears with the spring ends.

S01805
S01793
9 10
3 45 6
1 2
7 8
EM7797
Seal Packing
S01649
S01645
− ENGINE MECHANICALCYLINDER HEAD
EM−59
1996 RAV4 (RM447U)
(6) Install the bearing caps in their proper locations.
(7) Apply a light coat of engine oil on the threads and
under the heads of the bearing cap bolts.
(8) 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)
(9) Remove the service bolt B.
10. CHECK AND ADJUST VALVE CLEARANCE (See page
EM−5)
11. INSTALL SEMI−CIRCULAR PLUGS
(a) Remove any old packing (FIPG) material.
(b) Apply seal packing to the semi−circular plug grooves.
Seal packing: Part No. 08826−00080 or equivalent
(c) Install the 2 semi−circular plugs to the cylinder head.
12. INSTALL NO. 3 TIMING BELT COVER
Install the timing belt cover with the 3 bolts.
Torque: 7.8 N·m (80 kgf·cm, 69 in.·lbf)
13. TEMPORARILY INSTALL NO. 1 IDLER PULLEY AND
TENSION SPRING (See page EM−20)
14. INSTALL CAMSHAFT TIMING PULLEY AND TIMING
BELT (See page EM−20)
15. INSTALL ENGINE WIRE
(a) Install the engine wire protector to the 2 brackets on the
front side of the intake manifold.
(b) Connect the 4 injector connectors.
HINT:
The No. 1 and No. 3 injector connectors are brown, and the No.
2 and No. 4 injector connectors are gray.

EM−64
− ENGINE MECHANICALCYLINDER HEAD
1996 RAV4 (RM447U)
39. FILL WITH ENGINE COOLANT
40. START ENGINE AND CHECK FOR LEAKS
41. RECHECK ENGINE COOLANT LEVEL AND OIL LEV-
EL
42. INSTALL RH ENGINE UNDER COVER

S01374
Cover
Connector
− ENGINE MECHANICALENGINE UNIT
EM−79
1996 RAV4 (RM447U)
25. INSTALL GENERATOR (See page CH−19)
26. INSTALL CHARCOAL CANISTER
27. CONNECT ENGINE WIRE TO RELAY BOX NO. 2
(a) Connect the engine wire to the relay block No.2 with the
2 nuts.
(b) Connect the connector.
(c) Install the upper cover.
(d) Connect the relay block No. 2 to the body with the 2 bolts.
28. INSTALL ACCELERATOR CABLE TO THROTTLE
BODY, CABLE BRACKET AND CLAMPS
29. INSTALL AIR CLEANER CASE AND CAP
30. INSTALL BATTERY
31. FILL WITH TRANSAXLE OIL
32. FILL WITH ENGINE OIL
33. FILL WITH ENGINE COOLANT
34. START ENGINE AND CHECK FOR LEAKS
35. PERFORM ENGINE ADJUSTMENT
36. CHECK FRONT WHEEL ALIGNMENT
37. INSTALL ENGINE UNDER COVERS
38. INSTALL ENGINE HOOD
39. ROAD TEST VEHICLE
Check for abnormal noises, shock slippage, correct shift points
and smooth operation.
40. RECHECK ENGINE COOLANT AND OIL LEVELS

S01631
SST
P05527
P13434
P13435
P13436
EM−82
− ENGINE MECHANICALCYLINDER BLOCK
1996 RAV4 (RM447U)
12. REMOVE KNOCK SENSOR
Using SST, remove the knock sensor.
SST 09816−30010
13. REMOVE REAR OIL SEAL RETAINER
Remove the 6 bolts, retainer and gasket.
14. CHECK CONNECTING ROD THRUST CLEARANCE
Using a dial indicator, measure the thrust clearance while mov-
ing the connecting rod back and forth.
Standard thrust clearance:
0.160 − 0.312 mm (0.0063 − 0.0123 in.)
Maximum thrust clearance: 0.35 mm (0.0138 in.)
If the thrust clearance is greater than maximum, replace the
connecting rod assembly. If necessary, replace the crankshaft.
15. REMOVE CONNECTING ROD CAPS AND CHECK OIL
CLEARANCE
(a) Check the matchmarks on the connecting rod and cap to
ensure correct reassembly.
(b) Remove the 2 connecting rod cap nuts.

P13437
P13438
P02892
P03216
Plastigage
P13442
− ENGINE MECHANICALCYLINDER BLOCK
EM−83
1996 RAV4 (RM447U)
(c) Using a plastic−faced hammer, lightly tap the connecting
rod bolts and lift off the connecting rod cap.
HINT:
Keep the lower bearing inserted with the connecting rod cap.
(d) Cover the connecting rod bolts with a short piece of hose
to protect the crankshaft from damage.
(e) Clean the crank pin and bearing.
(f) Check the crank pin and bearing for pitting and scratches.
If the crank pin or bearing is damaged, replace the bearings. If
necessary, grind or replace the crankshaft.
(g) Lay a strip of Plastigage across the crank pin.
(h) Install the connecting rod cap (See page EM−99).
NOTICE:
Do not turn the crankshaft.
(i) Remove the connecting rod cap (See procedure (b) and
(c) above).
(j) Measure the Plastigage at its widest point.
Standard oil clearance:
STD0.024 − 0.055 mm (0.0009 − 0.0022 in.)
U/S 0.250.023 − 0.069 mm (0.0009 − 0.0027 in.)
Maximum oil clearance: 0.08 mm (0.0031 in.)
If the oil clearance is greater than maximum, replace the bear-
ings. If necessary, grind or replace the crankshaft.