automatic transmission FORD FESTIVA 1991 Owner's Manual

sun shell slots. Record measurement for reassembly reference. End play should be .020-.031" (.5-8 mm).

Fig. 7: Measuring Front Drum End Play

Courtesy of FORD MOTOR CO.
4. Remove oil pump. If oil pump is difficult to remove, tighten band adjusting stop bolt 106-133 INCH lbs. (12-15 N.m) and then remove
oil pump. Remove brake band adjustment stop bolt, lock nut, band strut and band. See Fig. 8
. Store band partially closed with a piece
of wire.
5. Remove front clutch assembly. Remove rear clutch needle bearing and rear clutch drum. Remove front ring gear. Remove needle bearing
and rear clutch hub assembly. Remove thrust bearing and sun gear spacer from front planetary gear. Remove planetary gear carrier.

Fig. 8: Exploded View Of Transaxle Housing & Primary Components

Courtesy of FORD MOTOR CO.
6. Remove the sun gear, spacer and connecting sun shell. See Fig. 8
. Using "C" clamp and socket, compress servo piston with and remove
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snap ring. Release the "C" clamp and remove the servo piston. See Fig. 2 . R e mo ve go ve r n o r c o ve r a n d p u l l go ve r n o r fr o m t r a n sa xl e
case. Remove transaxle case-to-torque converter housing bolts. Separate case halves.
7. Remove differential assembly. Remove oil pipes and parking pawl assembly. Remove drum hub assembly. Remove one-way clutch inner
race assembly. See Fig. 8
. Remove rear planetary carrier with needle bearing and thrust washer. Before disassembling one-way clutch,
measure and record clearance between one-way clutch and low-reverse brake retaining plate. Clearance should .032-.041" (.8-1.05
mm).
8. Remove snap ring, one-way clutch and low-reverse brake retaining plate. Remove low-reverse brake plates. Compress low-reverse brake
piston with appropriate compressor. See Fig. 9
. Remove snap ring with screwdriver and remove low-reverse brake hub and springs.
Apply air pressure to low-reverse oil passage to remove piston. See Fig. 10
.
9. Remove output bearing and idler support assembly by lightly tapping on idler shaft with a soft-faced hammer. Drive out idler gear roll
pin and remove idler gear from output bearing and idler support. See Fig. 11
. Remove output gear assembly, press out bearing race
from output bearing and idler support and save adjusting shim for reassembly.

Fig. 9: Removing Snap Ring & Low
-Reverse Brake
Courtesy of FORD MOTOR CO.

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Fig. 10: Identifying Transaxle Oil Passages
Courtesy of FORD MOTOR CO.

Fig. 11: Torque Converter Housing Components

Courtesy of FORD MOTOR CO.
COMPONENT DISASSEMBLY & REASSEMBLY
BAND SERVO
Inspection
Remove seal rings and inspect piston for damaged or worn piston. Ensure spring free length is 1.890" (48.00 mm). If less than specified,
replace spring. Install new seal rings on piston and servo retainer.
DIFFERENTIAL
Disassembly
1. Remove ring gear retaining bolts and ring gear. Using hammer and pin punch, drive out roll pin. See Fig. 12. Push out pinion gear shaft.
Remove pinion and side gears, with washers, from differential housing.
2. Using appropriate puller, remove side bearings from differential housing. DO NOT remove speedometer drive gear unless damaged.
Removal will damage speedometer drive gear.
Inspection
Check all gears for signs of excessive wear or damage. Check differential gear case for cracks or other damage. Replace as needed.
Reassembly
1. Reverse removal procedure to reassemble. Measure side gear and pinion gear backlash by inserting drive shafts into differential side
gears and supporting shafts in "V" blocks. Position dial indicator with plunger resting on teeth of pinion gear. See Fig. 13
. Measure
backlash. Repeat procedure with plunger on other pinion gear.
2. Backlash readings should be less than .004" (.10 mm). If backlash is not within specification, adjust backlash by changing thrust
washers. Thrust washers are available in .079" (2.00 mm), .083" (2.10 mm) and .087" (2.20 mm) thicknesses. Use thrust washers of t h e
same thickness on both sides whenever possible.
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Fig. 12: Exploded View Of Differential Assembly

Courtesy of FORD MOTOR CO.

Fig. 13: Measuring Pinion Gear Backlash

Courtesy of FORD MOTOR CO.
DRUM HUB
Disassembly, Inspection & Reassembly
Remove parking gear spring from park gear. Push in the parking gear retaining pins with screwdriver and remove parking gear. See Fig. 14 .
Remove snap ring and lift internal gear assembly from drive hub. Check gear for excessive wear or damage and replace if needed. Reverse
disassembly procedure to reassemble drum hub.
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Fig. 14: Exploded View Of Drum Hub Assembly

Courtesy of FORD MOTOR CO.
FRONT CLUTCH
Disassembly
Remove retainer plate snap ring. Remove retainer plate, drive and driven plates and dished plate. See Fig. 15 . Note position of dished plate
for reassembly. Using appropriate compressor, compress return springs to remove spring retainer snap ring. Remove spring compressor.
Remove spring retainer and return springs. Apply air pressure to front clutch oil passage and remove front clutch piston.
Inspection
Inspect all parts for wear or damage and replace as needed. Return springs must have free length of .992-1.071" (25.20-27.20 mm). If free
length is not within specification, replace spring(s). Check inside diameter of clutch drum bushing. If diameter exceeds 1.735" (44.08 mm),
replace bushing.
Reassembly
1. Reverse disassembly procedure to reassemble. Install new seal rings on piston and install piston by applying even pressure on perimeter
while rotating piston. Install front clutch return springs and retainer. Compress spring retainer. Install snap ring.
2. Install dished plate. See Fig. 15
. Install drive and driven clutch plates, retaining ring and snap ring. Using feeler gauge, measure
between snap ring and retaining plate. Clearance should be .063-.071" (1.60-1.80 mm). If clearance is not correct, select correct
thickness retaining plate. Retaining plates are available in thicknesses of .205" (5.20 mm) to .244" (6.20 mm) in .20 mm increments.
3. Place front clutch assembly over oil pump and apply air pressure (57 psi maximum) to front clutch oil passage in oil pump to check for
proper front clutch operation. See Fig. 16
.

Fig. 15: Exploded View Of Front Clutch

Courtesy of FORD MOTOR CO.
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Fig. 16: Identifying Oil Pump Oil Passages

Courtesy of FORD MOTOR CO.
GOVERNOR ASSEMBLY
Disassembly & Reassembly
S e c u r e go ve r n o r a sse mb l y in vise . Usin g h a mme r a n d p in p u n c h , d r ive o u t go ve r n o r sh a ft ge a r sp r in g p in . R e mo ve ge a r . R e mo ve sl eeve from
shaft. Remove oil screen clamp and screen. See Fig. 17
. Clean all parts as needed. Lubricate parts with ATF. To assemble, reverse
disassembly procedure. Replace spring pin.

Fig. 17: Exploded View Of Governor Assembly

Courtesy of GENERAL MOTORS CORP.
IDLER GEAR ASSEMBLY
Disassembly & Inspection
Attach Idler Shaft Holder (J-35286) or hex wrench to idler shaft and support assembly in vise. Remove lock nut. See Fig. 18 . Remove
bearing, spacer, idler gear, adjustment shim(s) and remaining bearing. Press bearing outer races from idler gear. Check all gear teeth for wear or
damage and bearings for breakage or unusual wear.
Reassembly
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1. Place idler shaft holder or hex wrench in vise and place idler shaft on wrench. Install outer races in idler gear. Place bearing, idler gear,
adjustment shim, spacers, bearing and nut on idler shaft and tighten nut to 94-130 ft. lbs. (127-176 N.m).
2. Measure bearing preload. Mount idler gear in vise. Using INCH lb. torque wrench, measure idler gear shaft turning torque. Turning
torque should be .26-8.0 INCH lbs. (.03-.90 N.m). If preload is not within specification, change selective shims. Selective size shims are
available from .004" (.10 mm) to .008" (.20 mm) in .04 mm increments. One .020" (.50 mm) shim is available. DO NOT use more than
7 shims. Once correct preload is obtained, retighten idler gear locknut to 94-130 ft. lbs. (128-177 N.m)

Fig. 18: Exploded View Of Idler Gear Assembly

Courtesy of FORD MOTOR CO.
LOW-REVERSE BRAKE
Inspection
Check all components for signs of damage or excessive wear. Check free length of return springs. See LOW-REVERSE BRAKE SPRING
SPECIFICATIONS . If not correct, replace spring(s).
LOW-REVERSE BRAKE SPRING SPECIFICATIONS
OIL PUMP
Disassembly
Remove pump cover retaining bolts and separate cover from pump body. Remove pump flange. See Fig. 19 . If gears are to be reused, match
mark gears to reassemble in same position. Remove drive and driven gears.
Inspection
1. Check the condition of the gear teeth and surfaces. Check seal rings for signs of cracks or breaks and replace as needed. Check condition
of pump housing sleeve and inner gear bushing. See Fig. 20
. See the OIL PUMP SPECIFICATIONS . Check sleeve outer diameter
and bushing inner diameter.
2. If sleeve diameter is less than 1.492" (37.90 mm) or bushing diameter is greater than 1.499" (38.08 mm) replace sleeve and bushing as a
set. Check pump clearances and compare with values shown in the OIL PUMP SPECIFICATIONS
.
Reassembly
Apply ATF on all parts. To assemble, reverse disassembly procedure. DO NOTtighten pump cover to oil pump housing. Oil pump reassembly
is completed during transaxle reassembly.
OIL PUMP SPECIFICATIONS
ApplicationFree Length In. (mm)
Aspire & Festiva1.091 (27.70)
Tracer1.070-1.110 (27.20-28.20)
ApplicationClearance In. (mm)
Drive & Driven Gear-To-Pump Cover.001-.003 (.025-.08)
Driven Gear-To-Crescent.006-.010 (.14-.25)
Driven Gear-To-Pump Housing.002-.003 (.04-.08)
Seal Ring Side.002-.016 (.04-.40)
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Fig. 19: Exploded View Of Oil Pump Assembly

Courtesy of FORD MOTOR CO.

Fig. 20: Measuring Oil Pump Clearances

Courtesy of FORD MOTOR CO.
ONE-WAY CLUTCH
Disassembly, Inspection & Reassembly
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1. Record direction of rotation one-way clutch locks and turns. Remove snap ring and pull out planetary carrier from one-way clutch inner
race. See Fig. 8
. Check for worn or damaged parts. Bushing wear on one-way clutch must not exceed 5.120" (130.06 mm).
2. Check clearance between pinion gears and washers in planetary carrier. If clearance exceeds .031" (.80 mm), replace planetary carrier.
Reverse disassembly procedure to reassemble. Install one-way clutch in inner race and ensure that it will turn in one direction
(clockwise) only.
REAR CLUTCH
Disassembly
1. Remove large snap ring. Lift out retaining plate, clutch plates, and dished plate. See Fig. 21 . Using appropriate compressor, compress
rear clutch spring retainer to remove small snap ring, spring retainer, and clutch return springs.
2. Place front clutch on oil pump and rear clutch hub on top of front clutch. Apply air pressure to rear clutch oil passage to remove piston.
See Fig. 16
. Remove and discard piston seal rings.
Inspection
Inspect for wear or damage. Ensure return spring free length is 1.031-1.071" (26.20-27.20 mm).
Reassembly
1. Install seal rings on piston and install in clutch drum by applying even pressure on perimeter of piston and rotate piston slowly. Install
return springs and spring retainer. Press spring retainer. Install snap ring. Note direction of dished plate and install. Install driven and
drive plates, retainer plate and snap ring. See Fig. 21
.
2. Ensure clearance between snap ring and retainer plate is .031-.039" (.80-1.00 mm). If clearance is not within specification, select correct
retaining plate. Retaining plates are available in thicknesses .189" (4.80 mm) to .244" (6.20 mm) in .20 mm increments.
3. Check rear clutch operation by placing forward clutch on oil pump and then rear clutch. Apply compressed air (70 psi maximum) to
rear clutch oil passage and check operation. See Fig. 16
.

Fig. 21: Exploded View Of Rear Clutch

Courtesy of FORD MOTOR CO.
REAR CLUTCH HUB
Disassembly, Inspection & Reassembly
Remove snap ring and separate hub from internal gear. Check for worn or damaged snap ring or gear and replace as needed. Reverse
disassembly procedure to reassemble hub.
VALVE BODY
Disassembly
1. Remove manual control valve. Remove oil strainer retaining bolts and oil strainer. Remove upper-to-lower valve body retaining bolts.
Separate valve bodies, separator plate and sub-body. DO NOT lose check balls and springs or orifice valve and spring. See Fig. 22
.
2. Remove, clean and install each valve individually as needed. See Fig. 22
. Lubricate moving parts with ATF. Ensure all valves move
(snap) freely. If valve sticks in its bore and cannot be freed, valve body must be replaced. DO NOT attempt to hone valve bores or
polish valves.
3. Inspect the valve springs for signs of damage or deformation. Measure valve spring free length and diameter. Refer to the VALVE
NOTE:Rem ove and clean one valve at a tim e to avoid incorrect installation. If any valves, valve springs, or
valve bodies are dam aged, the entire valve body assem bly m ust be replaced.
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BODY SPRING DIMENSIONS . Reassemble components in reverse order of disassembly.

Fig. 22: Exploded View Of Valve Body Assembly

Courtesy of FORD MOTOR CO.
VALVE BODY SPRING DIMENSIONS
Reassembly
1. To reassemble, reverse disassembly procedure. Coat all parts with clean transmission fluid. DO NOT force valves into position. Ensure
orifice check valve, check ball and springs are located correctly.
2. Place separator plate on lower valve body and hold with clamps. Install upper valve body and bolt into place. Tighten upper valve body
to lower valve body. See Fig. 23
.
ApplicationFree Length In. (mm)
Throttle Back-Up1.417 (36.00)
Downshift.862 (21.90)
2-3 Shift (Aspire & Festiva)1.614 (41.00)
1-2 Shift1.260 (32.00)
Second Lock1.319 (33.50)
Pressure Regulator1.693 (43.00)
Throttle Relief.441 (11.20)
Orifice Check (Aspire & Festiva).610 (15.50)
Steel Ball (Spring)1.516 (26.80)
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