Infiniti G37 Coupe. Manual — part 339
CO-6
< PRECAUTION >
PRECAUTIONS
3.
Attach liquid gasket tube to the tube presser (commercial ser-
vice tool).
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-15, "Recommended Chemical Products and Sealants"
.
4.
Apply liquid gasket without breaks to the specified location with
the specified dimensions.
• If there is a groove for the liquid gasket application, apply liq-
uid gasket to the groove.
• As for the bolt holes (B), normally apply liquid gasket inside
the holes. Occasionally, it should be applied outside the holes.
Make sure to read the text of service manual.
• Within five minutes of liquid gasket application, install the mat-
ing component.
• If liquid gasket protrudes, wipe it off immediately.
• Do not retighten after mounting bolts and nuts the installation.
• After 30 minutes or more have passed from the installation, fill
engine oil and engine coolant.
CAUTION:
If there are specific instructions in this manual, observe them.
EMA0622D
A
: Groove
: Inside
JPBIA0010ZZ
PREPARATION
CO-7
< PREPARATION >
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PREPARATION
PREPARATION
Commercial Service Tools
INFOID:0000000001547687
Tool name
Description
Tube presser
Pressing the tube of liquid gasket
Power tool
Loosening nuts and bolts
Radiator cap tester
Checking radiator and radiator cap
Radiator cap tester adapter
Adapting radiator cap tester to radiator cap
and water outlet (front) filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
S-NT052
PBIC0190E
PBIC1982E
S-NT564
CO-8
< ON-VEHICLE MAINTENANCE >
ENGINE COOLANT
ON-VEHICLE MAINTENANCE
ENGINE COOLANT
Inspection
INFOID:0000000001547680
LEVEL
• Check if the reservoir tank engine coolant level is within the “MIN”
to “MAX” when the engine is cool.
• Adjust the engine coolant level as necessary.
• Check that the reservoir tank cap is tightened.
LEAKAGE
• To check for leaks, apply pressure to the cooling system with the
radiator cap tester and radiator cap tester adapter (commercial
service tool) (A).
WARNING:
Never remove radiator cap when engine is hot. Serious burns
could occur from high-pressure engine coolant escaping from
radiator.
CAUTION:
Higher test pressure than specified may cause radiator dam-
age.
NOTE:
In a case that engine coolant decreases, replenish radiator with engine coolant.
• If anything is found, repair or replace damaged parts.
Draining
INFOID:0000000001547681
WARNING:
• To avoid being scalded, never change engine coolant when the engine is hot.
• Wrap a thick cloth around radiator cap and carefully remove radiator cap. First, turn radiator cap a
quarter of a turn to release built-up pressure. Then turn radiator cap all the way.
1.
Open radiator drain plug (2) at the bottom of radiator, and then remove radiator cap.
When draining all of engine coolant in the system, open water drain plugs on cylinder block. Refer
to
.
2.
Remove reservoir tank as necessary, and drain engine coolant and clean reservoir tank before installing.
A
: MAX
B
: MIN
JPBIA0102ZZ
Testing pressure
: Refer to
.
JPBIA0411ZZ
1
: Engine under cover
A
: Radiator drain plug hole
: Vehicle front
JPBIA0259ZZ
ENGINE COOLANT
CO-9
< ON-VEHICLE MAINTENANCE >
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3.
Check drained engine coolant for contaminants such as rust, corrosion or discoloration.
If contaminated, flush the engine cooling system. Refer to
.
Refilling
INFOID:0000000001547682
1.
Remove air cleaner case (LH). Refer to
.
2.
Install reservoir tank if removed, and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
If water drain plugs on cylinder block are removed, close and tighten them. Refer to
.
3.
Check that each hose clamp has been firmly tightened.
4.
Remove air relief plug (2) on radiator left side.
5.
Remove air relief plug (1) on heater hose.
6.
Fill radiator, and reservoir tank if removed, to specified level.
• Pour engine coolant through engine coolant filler neck
slowly of less than 2 (2-1/8 US qt, 1-3/4 lmp qt) a minute
to allow air in system to escape.
• Use Genuine NISSAN Long Life Antifreeze/Coolant or
equivalent mixed with water (distilled or demineralized).
Refer to
MA-10, "Fluids and Lubricants"
.
Tightening torque
: Refer to
1
: Reservoir tank
3
: Engine cover
: Vehicle front
JPBIA0260ZZ
2
: Heater hose
: Vehicle front
JPBIA0104ZZ
Engine coolant capacity
: Refer to
"Periodical Maintenanc
e Specification"
(With reservoir tank at
“MAX” level)
JPBIA0412ZZ
Reservoir tank engine coolant capacity
:Refer to
"Periodical Maintenance Specification"
(At “MAX” level)
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