Toyota 1RZ Supplement Manual page 509

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Water Pump
Crank Shaft
CORRECT
P06717
98 N
Alternator
S00109
WRONG WRONG
P06723
CHARGING - - CHARGING SYSTEM
5. INSPECT DRIVE BELT
(a) Visually check the belt for excessive wear, frayed cords
etc.
If any defect has been found, replace the drive belt.
HINT:
Cracks on the rib side of a belt are considered acceptable. If the
belt has chunks missing from the ribs, it should be replaced.
(b) Check the drive belt deflection by pressing on the belt at
the points indicated in the illustration with 98 N (10 kgf, 22
lbf) of pressure.
Drive belt deflection:
New belt 5 - - 7 mm (0.20 - - 0.28 in.)
Used belt 7 - - 8 mm (0.28 - - 0.31 in)
If necessary, adjust the drive belt deflection.
Reference
(c) Using a belt tension gauge, measure the belt tension.
Belt tension gauge:
Denso BTG- -20 (95506- -00020)
Borroughs No. BT- -33- -73F
Drive belt tension:
New belt 520 - - 750 N (53 - - 77 kgf)
Used belt 295 - - 392 N (30 - - 40 kgf)
If the belt tension is not as specified, adjust it.
HINT:
"New belt" refers to a belt which has been used less
S
than 5 minutes on a running engine.
"Used belt" refers to a belt which has been used on
S
a running engine for 5 minutes or more.
After installing a belt, check that it fits properly in the
S
ribbed grooves.
Check with your hand to confirm that the belt has
S
not slipped out of the groove on the bottom of the
pulley.
After installing a new belt, run the engine for about
S
5 minutes and recheck the belt tension.
6 . V I S UALLY CHE CK ALTE RNATO R WI RI NG AND
LI S T E N FO R ABNO RMAL NO I S E S
(a) Check that the wiring is in good condition.
(b) Check that there is no abnormal noise from the alternator
while the engine is running.
7. INSPECT DISCHARG E WARNI NG LI G HT CI RCUI T
(a) Turn the ignition switch "ON". Check that the discharge
warning light comes on.
(b) Start the engine. Check that the light goes off.
If the light does not operate as specified, troubleshoot the dis-
charge warning light circuit.
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