torque FORD MUSTANG 1969 Volume One Chassis

03-09-07

Saginaw Design Integral Power Steering Gear

03-09-07

VALVE SPOOL

DAMP EN
ERO-RING

TORSION BAR

G 1633-A

FIG. 18 —Removing Spool

from Valve Body

7.
Dip three new valve body O-

rings and teflon rings in C1AZ-

19582-A lubricant. Install the O-rings

on the valve body being careful not to

twist them. Slide the three teflon rings

into place over the O-rings being care-

ful not to stretch them any more than

necessary.

8. Lubricate a new dampener O-

ring and install it in the spool groove.

9. Assemble the stub shaft in the

valve body making sure that the

groove in the cap engages the pin in

the body. Tap the cap lightly with a

soft-faced hammer to seat it in the

valve body.

10.
Dip the valve spool in C1AZ-

19582-A. With the notch of the spool

toward the valve body, carefully slide

the spooi over the shaft and into the

body rotating it slightly to permit easy

entry. Make sure that the dampener

O-ring is distributed evenly to prevent

TEFLON RING
damage. Guide the spool to engage

the notch with the dowel in the body.

11.
Place the spool spring on the

stub shaft with the larger diameter

toward the spool. Work the small end

of the spring down over the shaft until

the small end is seated in the groove

of the stub shaft.

12.
If, during the assembly of the

valve, the stub shaft and end cap as-

sembly is allowed to slip out of en-

gagement with the valve body pin, the

spool will be permitted to enter the

valve body too far. The dampener O-

ring seal will expand into the valve

body fluid grooves preventing with-

drawal of the spool. Attempt to with-

draw the spool with a slight pull and

much rotary motion. If this does not

free the spool after several tries, make

sure that the spool is free to rotate;

place the valve body on a flat surface

with the notched end up, and tap the

spool with a wooden or plastic rod

until the O-ring seal is cut and the

spool can be removed. Replace the

dampener O-ring seal and proceed

with the assembly procedure as be-

fore.

RACK-PISTON

1.
Cut the teflon ring and the O-

ring from the piston.

2.
Place the assembly on a clean

lint-free cloth and remove the screws

that attach the ball return guide clamp

to the rack piston and remove the

clamp (Fig. 19).

3.
Lift the ball return guides from

the rack-piston.

4.
Remove Tool T65P-3D517-A

from the piston and remove the re-

maining balls.

5.
Thoroughly clean all parts.

END PLUG

RACK PI STON

DARK COLORED BALLS

(11 REQUIRED)

V

0-RING

POLISHED BALLS

(II REQUIRED)

BALL RETURN GUIDE

CLAMP

B

G1296. A
6. Lubricate a new O-ring and tef-

lon ring. Install the O-ring on the pis-

ton being qareful not to twist it. Slide

the teflon ring into place being careful

not to stretch it any more than neces-

sary.

7.
Slide worm (Fig. 20) fully into

the rack-piston. Load 16 balls into the

guide hole nearest the teflon ring

while slowly rotating the worm count-

erclockwise to feed the balls through

circuit. Alternate the dark colored

balls with the polished balls through

the circuit.

TEFLON RING

FIG. 19—Rack-Piston Disassembled
G 1632-A

FIG. 20—Assembling Rack Piston

Apply Lubriplate liberally to one of

the ball return guides and install the

six remaining balls in the guide. Place

the other half of the guide in position

and insert them into holes in the

rack-piston. Be sure that the dark ball

in the guide is installed next to the

polished ball in the rack-piston. Install

the ball return guide clamp with

screws and lock washers. Tighten the

screws to 8-12 ft-lbs.

8. The worm groove is ground with

a high point in the center. V/hen the

rack-piston passes over this high point

there should be a preload of 1-4 in-

lbs.
Clamp the rack-piston in a vise

with soft jaws with the worm shaft

pointing up. To avoid distortion, do

not tighten the vise too tight.

9. Place the valve assembly on the

worm, engaging the worm drive pins.

Rotate the worm until it extends 1

1/4 inch from the rack-piston to the

thrust bearing face. This is the center

position.

10.
Place an in-lb torque wrench

with a 3/4-inch-deep wall 12-point

socket on the stub shaft, and rotate

the wrench through an arc of approxi-

mately 60 degrees in both directions

several times, then take a torque read-

ing. The highest average reading ob-

tained with the worm rotating should

be between 1-4 in-lbs.

11.
If this reading is too high or

too low a new set of balls should beprocarmanuals.com

03-09-08
Saginaw Design Integral Power Steering Gear

03-09-08

Code

Size

6

7

8

9

10

11
Diameter

Mean

0.28117

0.28125

0.28133

0.28141

0.28149

0.28157
Size Range of Ball

(Inch)

0.28112-0.28122

0.28120-0.28130

0.28128-0.28138

0.28136-0.28146

0.28144-0.28154

0.28152-0.28162

FIG. 21 —Worm Ball Sizes

installed. Service replacement balls are

available in the sizes shown in (Fig.

21).

12.
Note the ball size stamped on

the rack-piston and install the next

size larger balls to increase the pre-

load. If no number is stamped on the

rack-piston, the original ball code size

was No. 7.

A change of one ball size larger will

increase the preload approximately

one in-lb. Final preload on replace-

ment balls should be 2-3 in-lbs.

Remove the valve assembly from

the worm and the rack-piston from

the vise.

13.
Insert Tool T65P-3D517-A into

the plug end of the rack and piston to

contact the worm shaft (Fig. 22).

Apply pressure on the tool while ro-

tating the worm shaft out of the pis-

ton and rack. Leave the tool in place

until the piston is installed in the

housing.

END OF TOOL MUST BE IN

CONTACT WITH WORM

SHAFT

Tool * T65P-3D517-A

FIG. 22—Installing Tool

in Raek-Piston
G 1631-A
ASSEMBLY OF

STEERING GEAR

1.
Secure the steering gear housing

in a vise.

2.
Lubricate the worm shaft, lower

thrust bearing, and races; then posi-

tion the thrust bearing and races on

the worm.

Align the valve body drive pin on

the worm, with the narrow pin slot in

the valve body. Be sure O-Ring seal

between the valve body and the worm

head is installed.

3.
Position the valve assembly and

the worm shaft in the housing as a

unit (Fig. 23). Do not push against the

stub shaft as this could cause the stub

shaft and cap to pull out of the valve

body, allowing the spool seal to slip

into valve body fluid grooves. Install

the valve assembly by pushing on the

outer diameter of the valve body hous-

ing with the finger tips. Be sure that

the teflon rings are not binding inside

the housing. The valve assembly is

correctly seated when the fluid return

hole in the gear housing is fully vis-

ible.

4.
Place the tool shown in Fig. 24

over the end of the stub shaft.

5.
Lubricate a new adjuster plug

O-ring and install it in the adjuster

plug groove.

6. Install the adjuster plug over the

end of the stub shaft and tighten it

DRIVE PIN
just enough to be sure all parts are

properly seated. Remove Tool T65P-

3A537-B.

7.
Install the adjuster plug locknut

loosely on the plug.

8. Tighten the adjuster plug with

wrench J7624 while rotating the input

shaft. As soon as additional drag is

noted, back the adjuster plug off 1/8

turn. Measure the input shaft drag

with an in-lb torque wrench.

9. Tighten the adjuster plug (Fig.

25) to obtain a 1-3 in-lb preload in ex-

cess of the drag that was measured

previously. Tighten the adjuster plug

lock nut and recheck the thrust bear-

ing preload. Total preload must not

exceed 8 in-lbs.

10.
Install Tool T65P-3805-A in

the steering gear housing. Position the

rack-piston as shown in Fig. 26. Be

sure that Tool T65P-3D517-A is con-

tacting the worm shaft. Push the

rack-piston inward until it contacts

the worm shaft while keeping pressure

applied to Tool T65P-3D517-A. Turn

the stub shaft clockwise until the

middle rack groove in the rack-piston

is aligned with the center of sector

shaft roller bearing. Remove the tool

from the housing.

11.
Lubricate a new O-ring with

C1AZ-19582-A and position it in the

sector shaft cover.

12.
Thread the sector shaft cover

on the adjusting screw until it bottoms

then back it off 1 1/2 turns.

13.
Install the sector shaft so that

the center gear tooth meshes with the

center groove in the rack-piston. Be

sure that the cover O-ring is in place

before pushing the cover down on the

housing.

14.
Install the cover screws and

lock washers. Tighten to 30-35 ft-lbs.

15.
Install a new adjuster lock nut

halfway on the adjuster screw.

16.
Install the end plug in the

rack-piston. Tighten the plug to 50-

100 ft-lbs torque.

17.
Lubricate a new housing end

plug O-ring and install it in the hous-

ing.

18.
Place the end plug in the gear

housing and seat it against the O-ring

seal. It may be necessary to tap the

Tool
T65P-3A537-B

STUB SHAFT

ADJUSTER

PLUG

G 1630-A

FIG. 23—Installing Valve and Worm Shaft in Housing
G 1629-A

FIG. 24 —Installing Adjuster Plugprocarmanuals.com

03-09-09
Saginaw Design Integral Power Steering Gear

03-09-09

Tool • T65P-3D517-A

LOCK NUT

ADJUSTER PLUG

G1628-A

FIG. 25
—
Adjusting Thrust Preload

end plug lightly with
a
soft-faced mal-

let
to
seat
it
properly.

19.
Snap
the
retainer ring
in
place

with
the
fingers.
Tap
lightly
on the

ring
to be
sure
the
ring
is
bottomed

securely
in the
housing.

20.
Turn
the
input shaft
to the
full

left
or
right position then turn
it
back

approximately
1 3/4
turns
to
center

the worm.
RACK PISTON

Tool - T65P.3805-A

FIG. 26—Installing Rack-Piston

21.
Place
an
in-lb torque wrench
on

the input shaft
as
shown
in Fig. 27.

22.
With
the
gear
on
center
and the

sector shaft adjuster backed
off,
meas-

ure
the
total drag. With
the
gear
on

center, adjust
the
sector shaft thrust

screw
so
that preload
is 4-8
in-lbs
in

excess
of
total preload
and
drag.

Readings
are to be
made through
an

arc
not
exceeding
20
degrees with
the

gear
on
center. Tighten
the
lock
nut.

23.
After obtaining
the
proper mesh

load, tighten
the
sector shaft adjust-

ment screw lock
nut to
20-30 ft-lbs.
jG1302
A

G1303-A

FIG. 27—Adjusting Sector

Shaft Mesh Loadprocarmanuals.com

03-10-02

Ford-Thompson Power Steering Pump

03-10-02

LOWER PRESSURE

PLATE 3D590

SPRING-3D601

UPPER PRESSURE

PLATE -3A645

RETAINER END

PLATE-3D589

CAM AND ROTOR

ASSEMBLY-
-3D607

SCREW AND WASHER

ASSEMBLY-379376-S
PULLEY-3D673

PUMP SHAFT

SEAL 3B592

PLATE AND BUSHING

ASSEMBLY-3D643

0-RING

382744-S

HOUSING GASKET

3A760

G1343-B

FIG. 2—Power Steering Pump Disassembled

To adjust the belt on 8 cyl. engines

loosen the mounting bolt in the ad-

justing slot and the nut directly above

the adjusting slot. Place a suitable pry

bar between the cast boss on the

pump mounting bracket and the cast

boss on the pump cover plate and pry

upward to correct tension.

Do not pry against the reservoir to

obtain proper belt load as it can be

deformed and cause a leak.

3.
Recheck the belt tension. When

the tension has been correctly adjusted,
tighten the bolts and the fiut to speci-

fication (Part 3-13).

POWER STEERING

PUMP DRIVE BELT

REPLACEMENT

1.
Loosen the idler pulley attaching

bolts and remove the compressor drive

belt if equipped with an air condition-

er.

2.
Loosen 3 bolts and one nut at-
taching the power steering pump to

the pump bracket, and remove the

pump drive belt.

3.
Position the power steering

pump drive belt on the pulleys.

4.
Adjust the drive belt tension as

outlined in Section 2 to specification

(Part 3-13) and tighten the pump at-

taching bolts and one nut to specifica-

tion.

5.
Install the compressor drive belt

if equipped with an air conditioner

and adjust to specification (Part 16).

REMOVAL AND INSTALLATION

POWER STEERING

PUMP REPLACEMENT

EIGHT CYLINDER

WITHOUT AIR

CONDITIONER AND

ALL SIX CYLINDER

1.
Remove the power steering fluid

from the pump reservoir by discon-

necting the fluid return hose at the

reservoir, and allow the fluid to drain

into a suitable container.

2.
Disconnect the pressure hose
from the pump.

3.
Remove 3 bolts from the front of

the pump and the one nut at the rear

(rear nut on 8 cyl. engines only) that

attach the pump to the mounting

bracket; disconnect the belt from the

pulley and remove the pump from the

vehicle.

4.
Position the pump to the mount-

ing bracket and install the 3 bolts at

the front of pump and (rear nut on 8

cyl.
engines only) the 1 nut at the

rear. Torque to specification.

5.
Place the belt on the pulley and

adjust the belt tension (Section 2) with
Tool T63L-8620-A and tighten the

bolts and nut to specifications.

6. Torque the pressure hose fitting

hex nut to specification. Then, connect

the pressure hose to the fitting and

torque the hose nut to specification.

7.
Connect the hose to the pump.

Then, tighten the clamp.

8. Fill the power steering pump res-

ervoir with transmission fluid C1AZ-

19582-A and cycle the system to re-

move air from the steering gear sys-

tem.

9. Check for leaks and again check

the fluid level. Add fluid as necessary.procarmanuals.com

03-10-03
Ford-Thompson Power Steering Pump

03-10-03

EIGHT CYLINDER WITH

AIR CONDITIONER

1.
Remove the power steering fluid

from the pump reservoir by discon-

necting the fluid return hose from the

reservoir and allow the fluid to drain

in a suitable container.

2.
Disconnect the pressure hose

from the pump.

3.
Remove 3 bolts from the front of

the pump and the one nut at the rear

that attach the pump to the mounting

bracket and remove the drive belt

from the pump pulley.

4.
Loosen the upper pump bracket-

to-engine attaching bolt and remove

the bolt in the belt adjusting slot. Re-

move the pump.

5.
Position the pump to the bracket

and install the bracket-to-pump at-

taching bolts and nuts. Tighten to spe-

cifications.

6. Place the belt on the pump pul-

ley. Adjust the belt tension as outlined

in Section 2 and tighten the bolts and

nut to specification.

7.
Torque the pressure hose fitting

hex nut to specification. Then, connect

the pressure hose to the fitting and

torque the hose nut to specification.

8. Connect the return hose to the

power steering pump and tighten the

clamp.

9. Fill the pump with automatic

transmission fluid C1AZ-19582-A.

Bleed the air from the system (Part

3-1) and check for leaks and again
check the fluid level. Add fluid as re-

quired.

POWER STEERING PUMP

PULLEY REPLACEMENT

REMOVAL

1.
Drain as much of the fluid as

possible from the pump through filler

pipe.

2.
Install a 3/8-16 inch capscrew in

the end of the pump shaft to prevent

damage to the shaft end by the tool

screw.

3.
Install the pulley remover, Tool

T63L-1O3OO-B, on pulley hub, and

place the tool and pump in a vise as

shown in Fig. 3.

4.
Hold the pump and rotate the

tool nut counterclockwise to remove

the pulley (Fig. 3). The pulley must be

removed without in and out pressure

on the pump shaft to prevent damage

to internal thrust areas.

INSTALLATION

1.
Position the pulley to the pump

shaft and install Tool T65P-3A733-A

as shown in Fig. 4.

2.
Hold the pump and rotate the

tool nut clockwise to install the pulley

on the shaft. The pulley face will be

flush with end of pump shaft. Install

the pulley without in and out pressure
on the shaft to prevent damage to in-

ternal thrust areas.

3.
Remove the tool.

POWER STEERING PUMP

RESERVOIR REPLACEMENT

Reservoir replacement must be done

on a clean workbench. Cleanliness of

work area and tools is extremely im-

portant when repairing any hydraulic

unit. Thoroughly clean the exterior of

the pump with a suitable cleaning sol-

vent. Do not clean, wash or soak the

shaft oil seal in solvent. Plug the inlet

and outlet openings with plugs or

masking tape before cleaning the

pump exterior or removing the reser-

voir.

REMOVAL

1.
Assemble the adapter plate (Tool

T69P-3A674-A) to the bench mounted

fixture tool (T57L-5OO-A). Position

the pump and pulley on the adapter

plate, pulley facing down.

2.
Remove the outlet fitting hex nut

and the service identification tag.

3.
Invert the pump so the pulley is

facing up and remove the reservoir by

tapping around the flange with a wood

block (Fig. 5).

4.
Remove the reservoir O-ring seal

and the outlet fitting gasket from the

pump.

INSTALLATION

Tool • T 63 L-

10300 -

G 1477 A

FIG. 3—Removing Power

Steering Pump Pulley
1478 A

FIG. 4—Installing Power

Steering Pump Pulley
1.
Install a new gasket on the outlet

fitting and a new reservoir O-ring seal

on the pump housing plate (Fig. 6).

The old gasket and seal should never

be re-used.

Too/
T57L 500-A

G1602-A

FIG. 5—Removing Pump

Reservoirprocarmanuals.com

03-10-04
Ford-Thompson Power Steering Pump

03-10-04

OUTLET FITTING

GASKET
Wood Block

0-RING SEAL

G1345-
-500-
A

G1603- A

FIG. 6—Gasket Locations
FIG.
7—Installing
Reservoir

on Pump—Typical
2.
Apply vaseline to the reservoir

O-ring seal and to the inside edge of

the new reservoir flange. Do not twist

the O-ring seal.

3.
Position the reservoir over the

pump and align the notch in the reser-

voir flange with the notch in the outer

diameter of the plate and bushing as-

sembly.

4.
Install the reservoir on the pump

and O-ring seal with a plastic or rub-

ber hammer and a block of wood as

shown in Fig. 7. Tap at the rear of the

reservoir and on the outer edges only.

5.
Inspect the assembly to be sure

the reservoir is evenly seated on the

pump housing plate.

6. Position the service identification

tag on the outlet fitting and install the

outlet fitting hex nut. Torque the nut

to specification (Part 3-13). Do not

exceed specification.

MAJOR REPAIR OPERATIONS

DISASSEMBLY

Disassembly of the pump and its

subassemblies must be made on a

clean work bench. In repairing any

hydraulically operated unit, cleanliness

is of utmost importance. Clean the ex-

terior of the unit with a suitable sol-

vent and drain as much of the fluid as

possible.

If only the reservoir is to be re-

moved, plug the inlet and outlet open-

ings with masking tape or plugs. Do

not immerse the shaft oil seal in sol-

vent. If only the rotor shaft seal is to

be replace, see Rotor Shaft Seal Re-

placement outlined in this section.

1.
Assemble the adapter plate (Tool

T69P-3A674-A) to the bench mount-

ed holding fixture Tool T57L-5OO-A

(Fig. 8).

2.
Position the pump assembly,

with pulley assembled, on the adapter

plate, pulley facing down.

3.
Remove the outlet fitting nut and

the service identification tag.

4.
Invert the pump assembly and,

using a block of wood and a rubber or

plastic hammer, remove the pump res-

ervoir and seal by tapping around the

flange of the reservoir and on the und-

erside of the filler neck.

5.
Again invert the pump assembly,

loosen and remove the pump housing

retention bolts and remove the pump

housing.
6. If necessary, remove the fol-

lowing components from the pump

housing: the housing cover, the O-ring

seal and the pressure springs. These

components normally will remain in

the pump housing when it is removed.

7.
Remove and discard the pump

cover gasket.

8. Remove the retainer end plate

and upper pressure plate (in some

pumps, the end plate and upper pres-

sure plate are integral).

9. Remove the loose fitting dowel

pin. Be careful not to bend the fixed

dowel pin which remains in the hous-

ing plate assembly.

10.
Remove the rotor assembly

being careful to prevent the springs

and slippers from falling out and be-

coming lost. Do not disassemble fur-

ther unless the lower pressure plate,

housing plate, rotor shaft and/or seal

is to be replaced.

11.
Invert the pump assembly and,

using Tool T63L-1O3OO-B, remove the

pulley.

12.
Clean any rust, road dirt, burrs,

scoring, etc. from the pulley end of

the rotor shaft prior to removal of the

shaft from the housing plate. The

shaft must come out without restric-

tions to prevent scoring or damage to

the bushing. Remove the pump rotor

shaft.

13.
Remove the lower pressure

plate.
PARTS REPAIR OR

REPLACEMENT

ROTOR SHAFT

SEAL REPLACEMENT

Removal

1.
Remove the pulley from the

rotor shaft as described under Power

Steering Pump Pulley Removal.

2.
Position the pump assembly in

T57L-500-A

T69P-3A674-A

•
G1604-A

FIG. 8—Adapter Plate Installationprocarmanuals.com

03-10-06
Ford-Thompson Power Steering Pump

03-10-06

7.
Use one of the slippers to com-

press the spring and install the slipper

with the groove in the slipper facing

upward (toward the cam notch). The

flats on the side of the slipper should

be on the left (Fig. 12).

FLATS ON LEFT

DOUBLE STEP

G1350-A

FIG. 72—Correct Slipper

Installation

8. Hold the cam stationary and

turn the rotor either to the right or

left, one space at a time. Repeat Step

7 until all the rotor cavities have been

filled. Be careful when turning the

rotor that the springs and slippers al-

ready inserted do not fall out.

9. Install the cam and rotor assem-

bly onto the pump housing plate with

the fixed dowel passing through the

first hole to the left of the cam notch

when the arrow on the cam OD is

pointing toward the lower pressure

plate (Fig. 13). If the cam and rotor

assembly will not seat, turn the rotor

shaft slightly until the spline teeth

mesh, allowing the cam and rotor to

drop down into position.

FIXED DOWEL D0|JBLE STEP

ARROW POINTING DOWN

G 1351-A

FIG. 13—Cam and Rotor

Installation
10.
Insert the loose fitting dowel

through the cam insert and lower

plate into the hole in the housing plate

assembly. When the loose dowel is

properly installed the heights of the

two dowels must be equal. Squirt the

rotor, springs, slippers and cam insert

with C1AZ-19582-A lubricant.

11.
Place the upper pressure plate

with the face having the tapered notch

down against the cam insert. The

fixed dowel should pass through the

round dowel hole and the loose dowel

through the elongated hole. The slot

between the ears on the pressure plate

OD should match the notch on the

cam insert OD (Fig. 14).

EARS

'G 1352-A

FIG. 74—Upper Pressure Plate

Installation

\ EARS

G1353-B

FIG. 75—Retainer End Plate

Installation

12.
Install the retainer end plate so

the slot on the end plate OD matches

the corresponding notches of the

upper pressure plate and cam (Fig

15).

13.
Install the pump valve assembly

O-ring seal onto the pump valve as-

sembly being careful not to twist the

seal (Fig. 16).

14.
Place the pump valve assembly

on top of the retainer end plate with

the large exhaust slot on the pump

valve in line with the OD notches of

the previously assembled parts. The
stack of parts must be fully seated. If

the pump valve has been installed cor-

rectly, the relief valve stem will be in

line with the lube return hole in the

pump housing plate (Fig. 16).

O-RING SEAL

EARS

G1605-A

FIG. 16 —Valve and Pressure

Spring Installation

Tool 169P-3B586-A

G1606-B

FIG. 17—Pump Housing

Installation

FIG. 18 -Checking Pump

Rotational Torqueprocarmanuals.com

03-10-07
Ford-Thompson Power Steering Pump

03-10-07

15.
Place small amounts of vaseline

on the pump housing plate to hold the

cover gasket in place. Install the gas-

ket on the pump housing plate.

16.
Insert the pressure plate springs

into the pockets in the pump valve as-

sembly. Vaseline may be placed in the

spring pockets to hold the springs in

position (Fig. 17).

17.
Using Tool T69P-3B586-A,

plug the intake hole in the housing

(Fig. 17).

18.
Lubricate the inside of the

housing and the housing cover seal

with C1AZ-19582-A lubricant. Fabri-

cate two studs (3/8-16x1.55 ) to be

used as positioning guides. Install one

in the housing plate bolt hole closest

to the drain hole and one in the bolt

hole diametrically opposite.

19.
Align the small diameter lube

hole in the housing rim with the lube

hole in the housing plate.

20.
Install the housing, applying an

even, downward pressure. The pres-
sure plate springs must not be jarred

and moved out of position. Remove

the guide studs.

21.
Install the housing retaining

bolts finger tight.

22.
Remove Tool T69P-3B586-A.

23.
Torque the retaining bolts even-

ly to 28-32 ft-lbs until the housing

flange contacts the gasket.

24.
Install a 3/8x16 hex head

screw, finger tight, into the end of the

rotor shaft. Using a torque wrench,

check the input torque of the shaft

(Fig. 18). The torque should not ex-

ceed 15 in-lbs. If it does, loosen the

retaining bolts slightly, rotate the

rotor shaft, retorque the bolts evenly

and again check the shaft torque. The

pump must not be used if the shaft

torque exceeds 15 in-lbs.

25.
Release the pin in the bench

holding fixture and agitate the pump

assembly back and forth. If there is a

rattle, the pressure plate springs have
fallen out of their seats and must be

reinstalled.

26.
Install the reservoir O-ring on

the housing plate being careful not to

twist the O-ring. Apply vaseline to the

seal and to the ID of the reservoir

flange.

27.
Install the reservoir, aligning

the notch in the reservoir flange with

the notch in the OD of the pump

housing plate and bushing assembly.

Using only a plastic or rubber ham-

mer, tap at the rear on the outer cor-

ners of the reservoir to avoid damage.

28.
Inspect the assembly to deter-

mine if the reservoir is seated on the

housing plate.

29.
Install the service identification

tag on the outlet valve fitting.

30.
Install the outlet valve fitting

nut and torque to 43-47 ft-lbs.

31.
Invert the pump assembly.

32.
If the pulley was removed, in-

stall the correct pulley using Tool

T65P-3A733-A.procarmanuals.com

03-11-01
Eaton Power Steering Pump

03-11-01

PART 3-11 Eaton Power Steering Pump

COMPONENT INDEX
MODEL APPLICATION

3
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4

POWER STEERING PUMP

Cleaning and Inspection (See Part 03-01)

Description

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11-01

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11-01

Disassembly and Overhaul

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11-03

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11-03

Removal and Installation

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11-01
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11-01

POWER STEERING PUMP RESERVOIR

Removal and Installation

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11-01
N/A

11-01

A page number indicates that the item is for the vehicle listed at the head of the column.

N/A indicates that the item is not applicable to the vehicle listed.

l
DESCRIPTION

The roller-type hydraulic pump,

driven by the crankshaft, draws auto-

matic transmission fluid down the res-

ervoir and provides fluid pressure for

the system. Steering gear lubrication
is also provided by the same fluid

from the reservoir. Within the pump

itself is a flow-control and pressure-

relief valve which governs the pres-
sures within the steering system ac-

cording to the varying conditions of

operation. After fluid has passed from

the gear, it returns to the reservoir.

REMOVAL AND INSTALLATION

POWER STEERING PUMP

REMOVAL

1.
Open the hood, and install fend-

er covers.

2.
If the vehicle is equipped with air

conditioning, loosen the compressor

adjusting and support bracket bolts

and remove the drive belt.

3.
Loosen the generator adjusting

and support bracket bolts, and remove

the drive belts.

4.
Remove the fan, pulley, and spa-

cer.

5.
Raise the vehicle.

6. Remove the crankshaft damper

bolt and washer. Remove the damper

with Tool 6306-AG. Remove the drive

key.

7.
Disconnect the pump inlet line at

the pump, and plug the end of the line

to prevent the loss of fluid. Disconnect

the pump pressure line at the pump.
8. Remove the pump-to-engine

front cover cap screws, and remove

the pump. Remove the seal from the

front cover.

INSTALLATION

1.
Install a new seal on the engine

front cover.

2.
Align the slot in the pump rotor

shaft with the drive key in the crank-

shaft, and slide the pump onto the

shaft. Install the pump-to-engine front

cover cap screws. Torque the cap

screws to specification.

3.
Connect the pump inlet line and

the pressure line.

4.
Install the damper drive key,

damper, washer and bolt. Torque the

bolt to specification.

5.
Install the fan, pulley, and spa-

cer. Install the generator drive belts.

Adjust the belt tension, and tighten

the adjusting and support bracket

bolts.
6. If the vehicle is equipped with air

conditioning, install the compressor

drive belt. Adjust the belt tension, and

tighten the adjusting and support

bracket bolts.

7.
Run the engine at idle speed,

and check the fluid level in the reser-

voir. If required, add the specified au-

tomatic transmission fluid. Turn on

the windshield wipers. Rotate the

steering wheel from stop to stop sever-

al times to bleed the air from the sys-

tem. Recheck the fluid level.

POWER STEERING PUMP

RESERVOIR

WITHOUT AIR

CONDITIONING

Removal

1.
Remove the reservoir cover andprocarmanuals.com

03-11-03

Eaton Power Steering Pump

03-11-03

POWER STEERING PUMP

DISASSEMBLY

A clean working area should be

used when overhauling the power

steering pump. Foreign matter picked

up on working parts may cause dam-

age or failure of the unit. Clean con-

tainers should be used for parts.

1.
Drain the fluid from the pump.

Remove the pump cover-to-housing

cap screws (Fig. 1). Place the pump

on the bench, cover side down. Lift

the housing from the cover.

2.
Remove the large and the small

O-rings from the pump cover. Remove

the O-ring from the pressure plate

hub.

3.
Remove the pressure plate-

to-cover screws, and remove the plate.

Lift the cam ring off the dowel pins.

4.
Remove the rollers. Lift the

rotor off the shaft, and remove the

drive key from the shaft. Remove the

dowel pins from the cover.

5.
Remove the rotor shaft from the

cover. Do not remove the snap ring

from the shaft unless it, or the shaft,

is damaged.

6. Pry the rotor shaft seals out of

the cover and the housing.

7. Do not disturb the control valve

unless diagnosis indicated a control

valve problem or foreign matter in the

valve. To remove the valve, drive the

roll pin out of the housing. Remove

the plug and O-ring, control valve,

and the spring. If the plug or valve is

stuck, tap the end of the housing on a

piece of wood or tap it with a soft-

faced hammer. Remove the O-ring

from the plug.

ASSEMBLY

Apply automatic transmission fluid

to all parts as they are assembled. Al-

ways use new seals and O-rings.

1.
Install the control valve spring in

the housing. Install the valve with the

small sensing hole in the end of the

valve toward the spring. Install a new

O-ring on the plug. The plug O-ring is

1/8 inch smaller in diameter than the

bypass O-ring. Make sure the proper

O-ring is used. Install the plug and a

new roll pin (Fig. 1).

2.
The rotor shaft oil seals are in-

stalled in the cover and the housing

with Tool 3583-J, which consists of a

driver and an adapter. The procedure

is as follows:

a. Support the cover on wood

blocks (Fig. 2) to provide tool clear-

ance.
Use clean blocks that will not

nick or damage the inner face of the

cover.
b.
Start the seal (metal shell up-

ward) square!y into the bore with fin-

ger pressure. Place the adapter on the

driver with the square corner of the

FIG. 2—Preparation for Installing

Rotor Shaft Seals

adapter toward the seal (Fig. 2). Drive

the seal into the cover, as shown in

Fig. 3, until it bottoms.

Driving the seal beyond this point

can damage it. Install the seal in the

pump housing in the same manner.

3.
Install the rotor shaft in the

FIG. 3—Installing Rotor

Shaft Seals
cover as shown in Fig. 4 to prevent

damage to the seal.

4.
Install the dowel pins in the

cover. Place the rotor drive key in the

shaft. Install the rotor on the shaft

with the drive key groove aligned with

the key and the counterbored side of

the rotor toward the cover so that it

goes over the snap ring.

5.
Place the cam ring on the dowel

pins with the chamfered edge upward

(Fig. 5). Place the rollers in the rotor.

6. Place the pressure plate on the

dowel pins. Install and tighten the

screws to 20 in-lbs torque. Install the

O-ring on the pressure plate hub. In-

stall O-rings in the groove at the fluid

bypass hole and around the cam ring

(Fig. 6).

7.
Place the tool shown in Fig. 6 in

the rotor shaft to prevent damage to

the oil seal, then install the housing on

the cover. Install and torque the cap

screws to 15-20 ft-lbs.

FIG. 5—Cam Ring Installation

FIG. 4—Installing Rotor Shaft

in Cover

FIG. 6—O-Ring Installationprocarmanuals.com