Infiniti I30 (A33). Manual — part 553
Checking Drive Belts
NHMA0007
SMA804CB
1.
Inspect belts for cracks, fraying, wear and oil. If necessary,
replace.
2.
Inspect drive belt deflection or tension at a point on the belt
midway between pulleys.
I
Check belt tension using belt tension gauge (BT 3373-F or
equivalent).
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Inspect drive belt deflection or tension when engine is
cold.
Adjust if belt deflection exceeds the limit or if belt tension is
not within specifications.
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Drive belt tension can also be checked at other points on
the belts.
Belt deflection and tension:
Deflection adjustment
Unit: mm (in)
Tension adjustment*1
Unit: N (kg, lb)
Used belt
New belt
Used belt
New belt
Limit
After adjust-
ment
Limit
After adjust-
ment
Alternator
With air condi-
tioner compres-
sor
7 (0.28)
4.2 - 4.6
(0.165 - 0.181)
3.7 - 4.1
(0.146 - 0.161)
294 (30, 66)
730 - 818
(74.5 - 83.5,
164 - 184)
838 - 926
(85.45 - 94.43,
188.4 - 208.2)
Without air con-
ditioner com-
pressor
10 (0.39)
6.3 - 6.9
(0.248 - 0.272)
5.6 - 6.0
(0.220 - 0.236)
294 (30, 66)
730 - 818
(74.5 - 83.5,
164 - 184)
838 - 926
(85.45 - 94.43,
188.4 - 208.2)
GI
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LC
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BT
HA
SC
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IDX
ENGINE MAINTENANCE
Checking Drive Belts
MA-13
Deflection adjustment
Unit: mm (in)
Tension adjustment*1
Unit: N (kg, lb)
Used belt
New belt
Used belt
New belt
Limit
After adjust-
ment
Limit
After adjust-
ment
Power steering oil pump
11 (0.43)
7.3 - 8 (0.287 -
0.315)
6.5 - 7.2
(0.256 - 0.283)
196 (20, 44)
495 - 583
(50.5 - 59.5,
111 - 131)
603 - 691
(61.5 - 70.5,
136 - 155)
Applied pushing force
98 N (10 kg, 22 lb)
—
*1: If the belt tension gauge cannot be installed at check points shown, check drive belt tension at a different location on the belt.
SMA032D
Changing Engine Coolant
NHMA0008
WARNING:
To avoid the danger of being scalded, never change the cool-
ant when the engine is hot.
— DRAINING ENGINE COOLANT —
NHMA0008S01
1.
Set air conditioning system as follows to prevent coolant from
remaining in the system.
a.
Turn ignition switch ON and set temperature controller to maxi-
mum hot position.
b.
Wait 10 seconds before turning ignition switch OFF.
SMA033D
2.
Open radiator drain plug at the bottom of radiator, and remove
radiator filler cap.
3.
Remove reservoir tank, drain coolant, then clean reservoir
tank.
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Be careful not to allow coolant to contact drive belts.
ENGINE MAINTENANCE
Checking Drive Belts (Cont’d)
MA-14
SMA034D
SMA953CA
4.
Remove drain plugs on both sides of cylinder block and air
relief plug.
5.
Check drained coolant for contaminants such as rust, corro-
sion or discoloration. If contaminated flush engine cooling
system, refer to “FLUSHING COOLING SYSTEM”, MA-16.
— REFILLING ENGINE COOLANT —
NHMA0008S02
1.
Install reservoir tank, and radiator drain plug.
2.
Close and tighten cylinder block drain plugs securely.
I
Apply sealant to the thread of cylinder block drain plugs.
: 60 - 66 N·m (6.1 - 6.7 kg-m, 44 - 48 ft-lb) Left side
: 18 - 22 N·m (1.8 - 2.2 kg-m, 13 - 16 ft-lb) Right side
3.
Fill radiator slowly with coolant until coolant spills from the air
relief plug, then install air relief plug.
Air relief plug:
: 6.9 - 7.8 N·m (0.7 - 0.8 kg-m, 61 - 69 in-lb)
I
Use genuine Nissan anti-freeze coolant or equivalent
mixed with water (distilled or demineralized).
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ENGINE MAINTENANCE
Changing Engine Coolant (Cont’d)
MA-15
SMA182B
SMA412B
Refer to “RECOMMENDED FLUIDS AND LUBRICANTS”,
MA-11.
Engine coolant capacity (With reservoir tank):
7.7
(8-1/8 US qt, 6-3/4 Imp qt)
Reservoir tank capacity:
0.7
(3/4 US qt, 5/8 Imp qt)
I
Pour coolant through coolant filler neck slowly to allow air
in system to escape.
4.
Fill radiator and reservoir tank to specified level.
5.
Warm up engine to normal operating temperature without
radiator cap installed.
I
If coolant overflows radiator filler hole, install filler cap.
6.
Run engine at 2,500 rpm for 10 seconds and return to idle
speed with radiator cap installed.
I
Repeat two or three times.
Watch coolant temperature gauge so as not to overheat the
engine.
7.
Stop engine and cool it down.
I
Cool down using a fan to reduce the time.
I
If necessary, refill radiator up to filler neck with coolant.
8.
Refill reservoir tank to MAX level line with coolant.
9.
Repeat steps 5 through 8 two or more times with radiator cap
installed until coolant level no longer drops.
10. Check cooling system for leaks with engine running.
11. Warm up engine, and check for sound of coolant flow while
running engine from idle up to 3,000 rpm with heater tempera-
ture controller set at several positions between COOL and
WARM.
I
Sound may be noticeable at heater water cock.
12. If sound is heard, bleed air from cooling system by repeating
steps 5 through 8 until coolant level no longer drops
I
Clean excess coolant from engine.
— FLUSHING COOLING SYSTEM —
NHMA0008S03
1.
Open air relief plug.
2.
Fill radiator with water until water spills from the air relief hole,
then close air relief plug. Fill radiator and reservoir tank with
water and reinstall radiator cap.
3.
Run engine and warm it up to normal operating temperature.
4.
Rev engine two or three times under no-load.
5.
Stop engine and wait until it cools down.
6.
Drain water.
7.
Repeat steps 1 through 6 until clear water begins to drain from
radiator.
SMA803A
Checking Fuel Lines
NHMA0009
Inspect fuel lines and tank for improper attachment, leaks, cracks,
damage, loose connections, chafing or deterioration. If necessary,
repair or replace faulty parts.
ENGINE MAINTENANCE
Changing Engine Coolant (Cont’d)
MA-16
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