Chrysler 300/300 Touring/300C, Dodge Magnum. Manual - part 254
REVERSE FLUSHING RADIATOR
Disconnect radiator hoses from radiator inlet and outlet. Attach a section of radiator hose to radiator bottom outlet
fitting and insert flushing gun. Connect a water supply hose and air supply hose to flushing gun.
CAUTION: Internal radiator pressure must not exceed 138 kPa (20 psi) as damage to radiator may result.
Allow radiator to fill with water. When radiator is filled, apply air in short blasts. Allow radiator to refill between blasts.
Continue this reverse flushing until clean water flows out through rear of radiator cooling tube passages. Have radi-
ator cleaned more extensively by a radiator repair shop.
REVERSE FLUSHING ENGINE
Drain cooling system. Remove thermostat housing and thermostat. Install thermostat housing. Disconnect radiator
upper hose from radiator and attach flushing gun to hose. Disconnect radiator lower hose from water pump and
attach a lead-away hose to water pump inlet fitting.
CAUTION: On vehicles equipped with a heater water control valve, be sure heater control valve is closed
(heat off). This will prevent coolant flow with scale and other deposits from entering heater core.
Connect water supply hose and air supply hose to flushing gun. Allow engine to fill with water. When engine is filled,
apply air in short blasts, allowing system to fill between air blasts. Continue until clean water flows through the lead
away hose.
Remove lead away hose, flushing gun, water supply hose and air supply hose. Remove thermostat housing and
install thermostat. Install thermostat housing with a replacement gasket. Refer to Thermostat Replacement. Connect
radiator hoses. Refill cooling system with correct antifreeze/water mixture. Refer to Refilling the Cooling System.
CHEMICAL CLEANING
In some instances, use a radiator cleaner (Mopar Radiator Kleen or equivalent) before flushing. This will soften
scale and other deposits and aid flushing operation.
CAUTION: Follow manufacturers instructions when using these products.
SPECIFICATIONS
TORQUE
DESCRIPTION
N·m
Ft. Lbs.
In. Lbs.
Automatic Belt Tensioner to Block - Bolts
54
40
-
3.0L Diesel
Block Heater - Bolt
2
-
17
Generator/Compressor Mounting Bracket - Bolts -
No. 1 and No.2
54
40
-
No. 3
40
30
-
Fan Shroud Mounting - Bolts
6
-
50
Fan Blade to Fan Motor - Bolts
23
17
-
Idler Pulley - Bolt - 5.7L/6.1L
54
40
-
Idler Pulley - Bolt - 2.7L/3.5L
28
-
250
Radiator to Support Bracket - Bolts
12
-
106
Thermostat Housing - Bolts - 2.7L/3.5L
11.8
-
105
Housing - Coolant Outlet - 2.7L
11.8
-
105
Housing - Coolant - 3.0L Diesel
11.8
-
105
Heater Supply Tube
3.4
-
30
7 - 20
COOLING
LX