Chrysler New Yorker. Manual - part 52

CAUTION: To prevent damage, the power cord must
be secured in its retainer clips, and not positioned
so it could contact linkages or exhaust manifolds.

(5) Lower vehicle.

AIR CONDITIONING BELT—3.5L ENGINE

REMOVAL

(1) Remove accessory drive belt to gain access to

the air conditioning drive belt. Refer to procedure in
this section.

(2) To remove air conditioning compressor drive

belt, first loosen the tensioner pulley lock nut, then
loosen the adjusting screw to the tensioner pulley
assembly until the belt can be removed (Fig. 24).

INSTALLATION

(1) Install air conditioning belt over drive pulleys.

Tighten the tensioner adjusting bolt until the belt is
at specified tension using a Belt Tension Gauge.
Refer to Belt Tension Chart. Tighten tensioner pulley
locking nut to 54 N·m (40 ft. lbs.).

(2) Install accessory drive belt and adjust to spec-

ified tension.

Air Conditioning Belt Tension Adjustment

Loosen the tensioner pulley locking nut and adjust

belt tension by tightening adjusting bolt. Use Belt
Tension Gauge and refer to Belt Tension Chart for
specifications. Torque pulley nut to 54 N·m (40 ft.
lbs.) after adjustment.

ACCESSORY DRIVE BELT—3.5L ENGINE

The Poly-V generator/power steering belt has an

adjustable tensioner pulley located on the front tim-
ing belt cover.

REMOVAL

(1) Loosen tensioner pulley locking nut.
(2) Raise vehicle on hoist.
(3) Remove the two (2) push clips attaching lower

air shield to engine cradle. Remove air shield.

(4) Loosen tensioner adjusting bolt until the acces-

sory belt can be removed.

INSTALLATION

(1) Install accessory drive belt.

NOTE: Use Special Tool 7198, Belt Tension Gauge
to obtain proper tension on accessory drive belt.
Refer to Belt Tension Chart.

(2) Tighten adjusting bolt until the specified ten-

sion is obtained.

(3) Install lower air shield and attaching push

clips.

(4) Lower vehicle.
(5) Tighten tensioner pulley locking nut.

CLEANING AND INSPECTION

WATER PUMP

Replace the water pump if it has any of the follow-

ing defects:

(1) Damage or cracks on the pump body.
(2) Coolant leaks; if the seal is leaking, this will be

evident by traces of thick deposits of greenish-brown
dried glycol running down the pump body and com-
ponents below. A thin black stain below pump weep
hole is considered normal operation.

(3) Impeller rubs inside of timing belt cover.
(4) Excessively loose or rough turning bearing.

Fig. 24 Air Conditioning and Accessory Drive Belts

BELT TENSION CHART—3.5L

POLY-V BELT

GAUGE

Accessory Drive Belt

New Belt: 836

44 N

(190

10 lbs.)

Used Belt: 534 N
(120 lbs.)

V-BELT

GAUGE

Air Conditioning Belt

New Belt: 667

44 N

(150

10 lbs.)

Used Belt: 534 N
(120 lbs.)

7 - 20

COOLING SYSTEM

300M

REMOVAL AND INSTALLATION (Continued)

NOTE: It is normal for the water pump to weep a
small amount of coolant from the weep hole (black
stain on water pump body). Do not replace the
water pump if this condition exists. Replace the
water pump if a heavy deposit or a steady flow of
green/brown engine coolant is evident on water
pump body from the weep hole (shaft seal failure).
Be sure to perform a thorough analysis before
replacing water pump.

ACCESSORY DRIVE BELT

Satisfactory performance of the belt driven accesso-

ries depends on belt condition and proper belt ten-
sion.

Belt replacement under any or all of the following

conditions is required:

(1) Excessive wear.
(2) Frayed cords.
(3) Severe glazing.
V-Ribbed belt system with back drive pulley may

develop minor cracks across the ribbed side (due to
reverse bending). These minor cracks are considered
normal and acceptable. Parallel cracks are not (Fig.
25).

COOLANT BOTTLE PRESSURE CAP

The pressure cap upper gasket (seal) pressure

relief can be checked by removing cap. Attach the
Radiator Pressure Tool to the cap and pump air into
the cap. Pressure cap upper gasket should relieve at

124 kPa (18 psi) and hold pressure at 110 kPa (16
psi) minimum.

Remove the pressure tester hold the cap in hand,

right side up (Fig. 26). The vent valve at the bottom
of the cap should not open. If the rubber gasket has
swollen and prevents the valve from closing, replace
the cap.

Hold the cleaned cap in hand upside down. If any

light can be seen between vent valve and rubber gas-
ket, replace cap.

WARNING:

THE WARNING WORDS DO NOT OPEN

HOT ON THE COOLANT BOTTLE PRESSURE CAP
IS A SAFETY PRECAUTION. WHEN HOT, PRES-
SURE BUILDS UP IN COOLING SYSTEM. TO PRE-
VENT

SCALDING

INJURY,

THE

COOLANT

BOTTLE

PRESSURE

CAP

SHOULD

NOT

REMOVED WHILE THE SYSTEM IS HOT AND/OR
UNDER PRESSURE.

There is no need to remove the pressure cap at any

time except for the following purposes:

• Checking and adjust antifreeze freeze point.

• Refilling system with new coolant.

• Conducting service procedures.

• Checking for vacuum leaks.

WARNING:

VEHICLE

HAS

BEEN

RUN

RECENTLY, WAIT 15 MINUTES BEFORE REMOVING
CAP. THEN PLACE A SHOP TOWEL OVER THE CAP
AND WITHOUT PUSHING DOWN ROTATE IT COUN-
TERCLOCKWISE TO THE FIRST STOP. ALLOW FLU-
IDS TO ESCAPE THROUGH THE OVERFLOW TUBE
AND WHEN THE SYSTEM STOPS PUSHING OUT
COOLANT AND STEAM AND PRESSURE DROPS,
REMOVE THE CAP COMPLETELY. SQUEEZING THE
RADIATOR INLET HOSE WITH A SHOP TOWEL (TO
CHECK PRESSURE) BEFORE AND AFTER TURNING
TO THE FIRST STOP IS RECOMMENDED.

Fig. 26 Pressure Cap

Fig. 25 Drive Belt Inspection

300M

COOLING SYSTEM

7 - 21

CLEANING AND INSPECTION (Continued)

CLEANING COOLING SYSTEM

Drain cooling system. Refer to Draining Cooling

System in this section. Refill with clean distilled
water. Refer to Refilling Cooling System in this sec-
tion. Run engine with radiator cap installed until
upper radiator hose is warm. Stop engine and drain
water from system. If water is dirty, fill, run and
drain system again until water runs clear.

REVERSE FLUSHING COOLING SYSTEM

Reverse flushing of the cooling system is the forc-

ing of water through the cooling system, using air
pressure in a direction opposite to that of the normal
flow of water. This is only necessary with dirty sys-
tems or in case of partially plugged systems.

RADIATOR

Drain cooling system and remove radiator hoses

from engine. Install suitable flushing gun in radiator
lower hose. Fill radiator with clean water and turn
on air in short blasts.

CAUTION:

Internal radiator pressure must not

exceed 138 kPa (20 psi) as damage to radiator may
result. Continue this procedure until water runs
clear.

ENGINE

Drain radiator. Refer to Draining Cooling System

in this section. Remove hoses from radiator. Remove
engine thermostat and reinstall thermostat housing.
Install suitable flushing gun to thermostat housing
hose. Turn on water, and when engine is filled, turn
on air, but no higher than 138 kPa (20 psi) in short
blasts. Allow engine to fill between blasts of air. Con-
tinue this procedure until water runs clean. Install
thermostat using a new housing gasket. Fill cooling
system. Refer to Refilling Cooling System in this sec-
tion.

ADJUSTMENTS

BELT TENSION GAUGE METHOD

Use belt tension gauge, Special Tool 7198 for con-

ventional V-belts and Poly-V belts.

Adjust the belt tension for NEW or USED belt ten-

sion applications. Refer to Belt Tension Chart.

SPECIFICATIONS

COOLING SYSTEM CAPACITY

ENGINE

CAPACITIES

3.5L

7.5 LITERS

7.92 QTS.

CAPACITY: Includes Heater and Coolant Pressure
Bottle

TORQUE

DESCRIPTION

TORQUE

Accessory Drive Belt Tensioner Pulley—3.5L

Nut . . . . . . . . . . . . . . . . . . . . . 54 N·m (40 ft. lbs.)

Air Conditioning Belt Tensioner Pulley—3.5L

Nut . . . . . . . . . . . . . . . . . . . . . 54 N·m (40 ft. lbs.)

Fan Module To Radiator

Screws . . . . . . . . . . . . . . . . . . . 5 N·m (45 in. lbs.)

Fan Blade To Motor

Nut . . . . . . . . . . . . . . . . . . . . . 5 N·m (45 in. lbs.)

Condenser Inlet Tube Bracket

Screw . . . . . . . . . . . . . . . . . . . . 5 N·m (45 in. lbs.)

A/C Condenser to Radiator

Bolt . . . . . . . . . . . . . . . . . . . . . 5 N·m (45 in. lbs.)

Fan Motor To Shroud

Screws . . . . . . . . . . . . . . . . . . . 3 N·m (25 in. lbs.)

Thermostat Housing

Bolts . . . . . . . . . . . . . . . . . . . 12 N·m (105 in. lbs.)

Water Pump Mounting

Bolts—3.5L . . . . . . . . . . . . . . 12 N·m (105 in. lbs.)

Cooling System Bleed Valve

Screw . . . . . . . . . . . . . . . . . . . . 8 N·m (70 in. lbs.)

BELT TENSION CHART—3.5L ENGINE

POLY-V BELT

GAUGE

Accessory Drive Belt

New Belt: 836

44 N

(190

10 lbs.)

Used Belt: 534 N
(120 lbs.)

V-BELT

GAUGE

Air Conditioning Belt

New Belt: 667

44 N

(150

10 lbs.)

Used Belt: 534 N
(120 lbs.)

7 - 22

COOLING SYSTEM

300M

CLEANING AND INSPECTION (Continued)

SPECIAL TOOLS

COOLING

Filling Aid Funnel 8195

Belt Tension Gauge 7198

Hose Clamp Pliers 6094

300M

COOLING SYSTEM

7 - 23

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