| 1. |
Disconnect the battery negative
terminal. |
| 2. |
Loosen the alternator tension adjusting bolt
(A) to loosen tension.
|
| 3. |
Remove the drive belt (A).
|
Drive Belt Inspection
Visually check the belt
for excessive wear, frayed cords etc.
If any defect has been
found, replace the drive belt.
|
Cracks on the rib side of a belt are
considered acceptable. If the belt has chunks missing from the ribs,
it should be replaced. |
Drive belt tension measurement and
adjustment
Measure the belt tension
using a mechanical tension gauge or a sonic tension meter.
Tension
New Belt :
961.0 ~ 980.7 N (98.0 ~ 100.0 kgf, 216.1 ~
220.5 lbf)
Used Belt :
637.4 ~ 735.5 N (65.0 ~ 75.0 kgf, 143.3 ~
165.3 lbf)
|
| •
|
If the engine has run for 5 minutes or
more, the belt tension must be adjusted as a used
belt. |
| •
|
When installing the V-ribbed belt, all
grooves on the pulley should be covered with belt ribs.
|
| •
|
A loose belt causes slip
noise. |
| •
|
Too tight belt cause bearing of
alternator and water pump to
damage. | |
| Using a mechanical
tension gauge (BT-33-73F, BTG-2 type) |
| 1. |
While pressing the handle (A) of the gauge,
insert the belt (B) between pulley and pulley (or idler) into the
gap between spindle (C) and hook (D).
|
| 2. |
After releasing the handle (A), read a value
on the dial pointed by the indicator (B).
|
| Using a sonic tension
meter (U-505/507 type) |
| 1. |
Input the belt specifications into the tension
meter.
Belt type
|
Location of
measurement
|
Input
data
|
M (Mass,
g/m.rib)
|
W (Width,
rib)
|
S (Span,
mm)
|
With A/C
|
Crankshaft pulley to A/C compressor
pulley
|
13.4
|
6
|
178.9
|
Without A/C
|
Idler to alternator pulley
|
13.4
|
6
|
Actual
measurement value
|
|
Measurement of S (Span) : Caculate
average value after measuring the distance 3~4
times.
D : Idlerd
d : Alternator
pulley |
|
| 2. |
Locate the micro phone (B) close to the center
of belt span (A) and bounce the belt by finger 2~3 times. Read a
value on the display.
[With A/C]
[Without A/C]
|
| If adjustment is
necessary: |
| 1. |
Loosen the mounting bolts
(A). |
| 2. |
Tighten the adjusting bolt(B) clockwise in
loose tension ; loosen the bolt counterclockwise in high
tension.
|
| 3. |
Recheck tension of the
belt. |
| 4. |
After adjusting tension, tighten the through
bolts.
Tightening
torque
12mm (0.47in) bolt :
19.6 ~ 26.5 Nm (2.0 ~ 2.7 kgf.m, 14.5 ~
19.5 Ib-ft)
14mm (0.55in) bolt :
29.4 ~ 41.2 Nm (3.0 ~ 4.2 kgf.m, 21.7 ~
30.4 Ib-ft)
| |
| 1. |
Install the drive belt (A).
|
| 2. |
Adjust tension by tightening the alternator
tension adjust bolt (B) and then install the mounting
bilts(A).
Tightening
torque
12mm (0.47in) bolt :
19.6 ~ 26.5 Nm (2.0 ~ 2.7 kgf.m, 14.5 ~
19.5 Ib-ft)
14mm (0.55in) bolt :
29.4 ~ 41.2 Nm (3.0 ~ 4.2 kgf.m, 21.7 ~
30.4 Ib-ft)
|
|
| 3. |
Connect the battery negative
terminal. |
