1986 TOYOTA CAMRY V20 check engine light

(c) Disconnect the vacuum hose from the R port of the EGR
vacuum modulator and connect the R port directly to the
intake manifold with another hose.
(d) Check that the vacuum gauge indicates high vacuum at
3,500 rpm.
HINT: As large amount of EGR gas enters, the engine will
misfire slightly.
(e) Remove the vacuum gauge and reconnect the vacuum
hoses to the proper locations.
INSPECTION OF EGR SYSTEM
1. CHECK AND CLEAN FILTERS IN EGR VACUUM
MODULATOR
(a) Check the filters for contamination or damage.
(b) Using compressed air, clean the filters.
HINT: Install the filters with the coarser surface facing the at-
mospheric side (outward).
2. PREPARATION
Using a 3±way connector, connect a vacuum gauge to the
hose between the EGR valve and vacuum pipe.
3. CHECK SEATING OF EGR VALVE
Start the engine and check that the engine starts and runs at
idle.
4. CHECK6VSV WITH COLD ENGINE
(a) The coolant temperature should be below 40
°C
(104°F).
(b) Check that the vacuum gauge indicates zero at
2,500 rpm.
5. CHECK6VSV AND EGR VACUUM MODULATOR
WITH HOT ENGINE
(a) Warn n up the engine.
(b) Check that the vacuum gauge indicates low vacuum at 2,500
rpm.
± EMISSION CONTROL SYSTEMS (2VZ±FE)Exhaust Gas Recirculation (EGR) SystemEC±22

9. SLIGHTLY JACK UP ENGINE
Raise the engine enough to remove the weight from the en-
gine mounting on the right side.
10. REMOVE ENGINE RH MOUNTING INSULATOR
(a) (w/ A.B.S..)
Remove the clamp bolts of the PS oil cooler pipes.
(b) Remove the bolt, four nuts and mounting insulator.
11. REMOVE SPARK PLUGS (See page IG±11)
14. IF RE±USING TIMING BELT, CHECK INSTALLATION
MARKS ON TIMING BELT
Check that there are four installation marks on the timing belt
by turning the crankshaft pulley as shown in the illustration.
If the installation marks have disappeared, place a new
installation mark on .the timing belt before removing each
part.8. REMOVE ENGINE RH MOUNTING STAYS
(a) Remove the three bolts and No.1 mounting stay.
(b) Remove the bolt, nut and No.2 mounting stay.
12. REMOVE NO.2 TIMING BELT COVER
Remove the eight bolts, timing belt cover and gasket.
13. REMOVE ENGINE RH MOUNTING BRACKET
Remove the three bolts and mounting bracket.
± ENGINE MECHANICALTiming Belt (2VZ±FE)EM±35

17. REMOVE TIMING BELT FROM CAMSHAFT TIMING
PULLEY
HINT (Re±using timing belt): If the installation marks have
disappeared, before removing the timing belt, place new
instillation marks on the timing belt to match the timing marks
of the camshaft timing pulleys.
(a) Using SST, loosen± the tension between the LH and
RH camshaft timing pulleys by slightly turning the RH
camshaft timing pulley clockwise.
SST 09278±54012 15. SET NO.1 CYLINDER TO TDCI COMPRESSION
(a) Turn the crankshaft pulley and align its groove with the timing
mark º0º of the No.1 timing belt cover.
(b) Check that timing marks of the camshaft timing
pulleys and No±3 timing belt cover are aligned.
If not, turn the crankshaft one revolution (360
°).
16. REMOVE TIMING BELT TENSIONER
Remove the two bolts, tensioner and dust boot.
± ENGINE MECHANICALTiming Belt (2VZ±FE)EM±36

11. INSTALL RH CAMSHAFT TIMING PULLEY AND
TIMING BELT
(a) Remove any oil or water on the RH camshaft timing and
No±2 idler pulleys, and keep them clean.
(b) Align the installation mark on the timing belt with the timing
mark of the RH camshaft timing pulley.
(c) Hang the timing belt on the RH camshaft timing pulley, fac-
ing the flange side inward. (b) Remove any oil or water on the LH camshaft timing
pulley, and keep it clean.
(c) Using SST, slightly turn the LH camshaft timing pulley
clockwise. Align the installation mark on the timing
belt with the timing mark of the camshaft timing
pulley, and hang the timing belt on the LH
camshaft timing pulley.
SST 09278±54012 10. INSTALL TIMING BELT TO LH CAMSHAFT TIMING
PULLEY
(a) Check that the installation mark on the timing belt
matches the end of the No.1 timing belt cover±.
If the installation mark do not align, shift the meshing of the
timing belt and crankshaft timing pulley until they align.
(d) Using SST, align the timing marks of the LH
camshaft pulley and No.3 timing belt cover.
SST 09278±54012
(e) Check that the timing belt has tension between the
crankshaft timing and LH camshaft timing pulleys.
(d) Align the timing .marks of the RH camshaft timing
pulley and No.3 timing belt cover.
(e) Slide the RH camshaft timing pulley on the camshaft.
± ENGINE MECHANICALTiming Belt (2VZ±FE)EM±44

(b) Check the valve seating position.
Apply a thin coat of Prussian blue (or white lead) to the
valve face. Lightly press the valve against the seat. Do
not rotate the valve.
(c) Check the valve face and seat for the following:
wIf blue appears 360° around the face, the valve is con-
centric. If not, replace the valve.
wIf blue appears 360° around the valve seat, the guide
and 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.) (d) Check the valve overall length.
Standard overall length:
Intake 100.60 mm (3.9606 in.)
Exhaust 100.45 mm (3.9547 in.)
Minimum overall length:
Intake 100.1 mm (3.941 in.)
Exhaust 100.0 mm (3.937 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.
12. INSPECT AND CLEAN VALVE SEATS
(a) Using a 45° carbide cutter, resurface the valve seats.
Remove only enough metal to clean the seats.
± ENGINE MECHANICALCylinder Head (3S±FE)EM±61

ASSEMBLY OF CYLINDER HEAD
(See page EM±48)
HINT:
wThoroughly clean all parts to be assembled.
wBefore installing the parts, apply new engine oil to all
sliding and rotating surfaces.
wReplace all gaskets and oil seals with new ones.
1. INSTALL VALVES
HINT: The intake valve oil seal is brown and the exhaust
valve oil seal is black.
(a) Install the following parts:
(1) Oil seal
(2) Valve
(3) Spring seat
(4) Valve spring
(5) Spring retainer
2. INSTALL VALVE LIFTERS AND SHIMS
(a) Install the valve lifter and shim.
(b) Check the valve lifter rotates smoothly by hand. (b) Using SST, compress the valve spring and place the
two keepers around the valve stem.
SST 09202±70010
(c) Using a plastic±faced hammer, lightly tap the valve
stem tip to assure proper fit.
± ENGINE MECHANICALCylinder Head (3S±FE)EM±66

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 gas-
ket.
B. Install cylinder head bolts
HINT:
wThe cylinder head bolts are tightened in two progressive
steps (steps (b) and (d)).
wIf any cylinder head bolt is broken or deformed, replace it.
(a) Apply a light coat of engine oil on the threads and under the
heads of the cylinder head bolts.
(b) First, using SST, install and uniformly tighten the ten cylinder
head bolts in several passes in the sequence shown.
SST 09011±38121
Torque: 500 kg±cm (36 ft±Ib, 49 N±m)
If any one of the cylinder head bolts does not meet the
torque specification, replace the cylinder head bolt.
(d) 2nd, retighten the cylinder head bolts 90° in the numeri-
cal order shown.
(e) Check that the painted mark is now at a 90° angle to
front.
INSTALLATION OF CYLINDER HEAD
(See page EM±48)
(c) Mark the front of the cylinder head bolt head with
paint. .
± ENGINE MECHANICALCylinder Head (3S±FE)EM±67

(b) Check the valve seating position.
Apply a thin coat of Prussian blue (or white lead) to the
valve face. Lightly press the valve against the seat. Do
not rotate the valve.
(c) Check the valve face and seat for the following:
wIf blue appears 360° around the face, the valve is con-
centric. If not, replace the valve.
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.) (d) Check the valve overall length.
Standard overall length:
Intake 96.1 mm (3.783 in.)
Exhaust 96.2 mm (3.787 in.)
Minimum overall length:
Intake 95.6 mm (3.754 in.)
Exhaust 95.7 mm (3.768 in.)
If the overall length is less than minimum, replace the
valve. (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.
(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.
12. INSPECT AND CLEAN VALVE SEATS
(a) Using a 455 carbide cutter, resurface the valve seats.
Remove only enough metal to clean the seats.
± ENGINE MECHANICALCylinder Heads (2VZ±FE)EM±89