Toyota Celica Supra 1986 Service And Repair Manual page 13

MA·4 MAINTENANCE - Maintenance Operations
Nippondemo Borroughs
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CORRECT WRONG WRONG
CORRECT WRONG
-
MAINTENANCE OPERATIONS
ENGINE
Cold EI'!Jine Operations
1. REPLACE TIMING BELT
(a) Remove the timing belt.
(See pages
EM·1 1 to 13)
(b) Install the timing belt.
(See
pages EM·15 to 17)
2. INSPECT V·RIBBED TYPE DRIVE BELT
(ALTERNATOR) AND CONVENTIONAL TYPE
DRIVE BELTS
(PS
PUMP AND A/C COMPRESSOR)
(a) Visually chock the bolt for separation of the adhesive
rubber above and below the core, core separation
from the belt side, S<!Vered core, separation of the rib
from the adhesive rubbe<, cracking or separation of
the ribs, torn or worn ribs or cracks in the inner
ridges of the ribs. Conventional typo only: Check
that the belt does not touch the bottom of the pulley
groove.
If necessary, replace tho drive belt.
(b) Using
a
belt tension gauge,
check
the drive belt
tension.
Belt tension gauge:
Nippondenso BTG·20 (95506.000201 or
Borroughs No. BT·33·73F
Drive belt temion:
V·ribbed type
Conventional type
Used bolt 135 • 20 lb
New belt 170 • 10 lb
Used bolt 80
t
20 lb
New bolt 125
t
261b
If necessary, adjust the drive belt tension.
NOTE:
• "New belt" refers to a belt which has been used less
than 5 minutes on a running engine.
o
"Used belt" refart to a belt which has been used on a
running engine for
5
minutes or more.
• After replacing the drive belt,
check
that it fits properly
in the ribbed grooves, especially in the places difficult
to see.
o
After installing a new belt, run the engine for about 5
minutes and then recheck the tension.