Toyota Supra 1990 Manual page 375

CORRECT WRONG
CHARGING SYSTEM - On-Vehicle Inspection CH-3
CH0004 CH0744
Borroughs
EC0003 EC0004 ECOOOl
WRONG
CH0086
3.
INSPECT DRIVE BELT
(a) Visually check the belt for excessive wear, frayed
cords etc.
If necessary, 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) Using a belt tension gauge, check the drive belt
tension.
Belt tension gauge:
Nippondenso BTG-20 (95506-00020) or
Borroughs No. BT-33-73F
Drive belt tension:
New belt 175
±
51b
Used belt 115
±
20lb
If necessary, adjust the drive belt tension.
HINT:
• "New belt" refers to a belt which has been used less
than 5 minutes on a running engine.
• "Used belt" refers to a belt which has been used on a
running engine for 5 minutes or more.
• After installing the drive belt, check that it fits properly
in the ribbed grooves. Check with your hand to confirm
that the belt has not slipped out of the groove on the
bottom of the crank pulley.
• After installing a new belt, run the engine for about 5
minutes and then recheck the tension.
4. INSPECT FUSES FOR CONTINUITY
• IGN 7.5A
• ENGINE 15A