Contents Wiring diagrams Section: Cooling System (Mechanical) All sections

Specifications: Adjustments Infiniti QX4 I

BELT ADJUSTMENT

Application(1) New Belt - In. (mm)(1) Used Belt - In. (mm)
A/C Compressor
QX4
1999.350-.390 (9.0-10.0).350-.430 (9.0-11.0)
2000.350-.390 (9.0-10.0).413-.453 (10.5-11.5)
Q45.310-.350 (8.0-9.0).350-.390 (9.0-10.0)
Generator
G20
1999
W/ A/C.256-.295 (6.5-7.5).280-.310 (7.0-8.0)
W/O A/C.280-.310 (7.0-8.0).310-.350 (8.0-9.0)
2000
W/ A/C.177-217 (4.5-5.5).217-.256 (5.5-6.5)
W/O A/C.280-.310 (7.0-8.0).310-.350 (8.0-9.0)
I30
1999
W/ A/C.150-.161 (3.8-4.1).165-.181 (4.2-4.6)
W/O A/C.228-.244 (5.8-6.2).248-.272 (6.3-6.9)
2000
W/ A/C.140-.161 (3.7-4.1).165-.181 (4.2-4.6)
W/O A/C.220-.236 (5.6-6.0).248-.272 (6.3-6.9)
QX4.217-.256 (5.5-6.5).240-.280 (6.0-7.0)
Q45.138-.177 (3.5-4.5).160-.200 (4.0-5.0)
Power Steering
G20
1999.138-.177 (3.5-4.5).160-.200 (4.0-5.0)
2000.280-.310 (7.0-8.0).310 .350 (8.0-9.0)
I30
1999.256-.276 (6.5-7.0).287-.315 (7.3-8.0)
2000.256-.283 (6.5-7.2).287-.315 (7.3-8.0)
QX4.350-.430 (8.9-10.1).350-.390 (8.9-9.9)
1999.350-.430 (9.0-11.0).350-.390 (9.0-10.0)
2000.350-.390 (9.0-10.0).430-.510 (11.0-13.0)
Q45.310-.350 (8.0-9.0).350-.390 (9.0-10)
Water Pump
Q45.240-.280 (6.0-7.0).200-.240 (5.0-6.0)
(1) With 22 lbs. (10 kg) pressure applied center of longest belt run.
(1)With 22 lbs. (10 kg) pressure applied center of longest belt run.

BELT ADJUSTMENT (DEFLECTION)

Periodic maintenance is necessary for extended cooling system and engine life. Because engine and cooling systems are made of different metals, changing coolant at scheduled maintenance periods is necessary to reduce electrolysis and remove sediment.

ApplicationSpecification
Coolant Replacement Interval30,000 Miles Or 24 Months
Coolant Capacity (Includes Heater)
G206.5 Qts. (6.2L)
I30
19999.0 Qts. (8.5L)
20008.125 Qts. (7.68L)
QX4
199911.25 Qts. (10.6L)
200011.3 Qts. (10.7L)
Q4512.4 Qts. (11.7L)
Pressure Cap
G20, I30, & QX4
Standard11-14 psi
Limit9-14 psi
Q45
Standard14-17 psi
Limit9-17 psi
Thermostat Opens180°F (82°C)

COOLING SYSTEM SPECIFICATIONS