Toyota 3F-E - Inspection and Adjustment of Valve Clearance; Inspection of Alternator Drive Belt

EM-10
ENGINE MECHANICAL —
Engine Tune-up
I
NSPECTION OF ALTERNATOR DRIVE BELT
(
See page CH-4)
Drive belt deflection:
New belt 7.0 — 9.0 mm (0.278 — 0.354 in.)
Used belt 9.0 — 12.0 mm (0.354 — 0.472 in.)
Drive belt tension:
New belt 55 — 65 kg
Used belt 30 — 45 kg
I
NSPECTION AND ADJUSTMENT OF VALVE
CLEARANCE
HINT: Inspect and adjust the valve clearance after en-
gine has reached normal operating temperature.
1.
REMOVE AIR CLEANER HOSE
2.
REMOVE CYLINDER HEAD COVER
(
See step 21 on page EM-19)
Front
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EX I N I N
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EM1519
3.
SET NO. 1 CYLINDER TO TDC/COMPRESSION
(a)
Align the TDC mark of the drive plate with the tim-
ing pointer by turning the crankshaft clockwise with
a wrench.
(b)
Check that the rocker arms on the No. 1 cylinder are
loose and rocker arms on the No. 6 are tight.
If not, turn the crankshaft one revolution (360°) and align
the mark as above.
4.
INSPECT AND ADJUST VALVE CLEARANCE
(a) Measure only those valves indicated by arrows.
Valve clearance (Hot):
Intake
0.20 mm (0.008 in.)
Exhaust 0.35 mm (0.014 in.)
•
Using a thickness gauge, measure the valve clear-
ance between the valve stem and rocker arm.
Loosen the lock nut and turn the adjusting screw
to set the proper clearance.
Hold the adjusting screw in position and tighten
the lock nut.
•
Recheck the valve clearance. The thickness
gauge should slide with a very slight drag.
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