Page 1
CHECKBALL B O O K
Import Volume II
INDEX
ACURA INTEGRA
Model "CA" .................................................................................................................................. 4
Model "MPRA" ............................................................................................................................ 8
ACURA LEGEND
Model "G4" ................................................................................................................................... 12
BMW ELECTRONIC
ZF 4HP-22 (4 Solenoid Only) ........................................................................................................ 16
ZF 4HP-22 (5 Solenoid Only) ........................................................................................................ 20
HONDA ACCORD
Model "AS" ................................................................................................................................... 28
Model "F4" .................................................................................................................................... 32
Models "PX4B", "APX4", "MPOA", "AYOA", "BOYA" ......................................................... 36
HONDA CIVIC
Model "CA" ................................................................................................................................... 40
Model "L4", "ML4A" (1988 Model Only) .................................................................................. 44
Model "L4", "ML4A" (89-90 Model Only) ................................................................................. 47
Model "M24A" .............................................................................................................................. 50
Model "A4RA" .............................................................................................................................. 53
HONDA PRELUDE
Model "F4" .................................................................................................................................... 32
Model "K4" (Early Model Only) .................................................................................................. 56
Model "K4" (Late Model Only) .................................................................................................... 60
Model "PY8A" ............................................................................................................................... 64
HONDA PASSPORT
Model "4L30-E" ........................................................................................................................... 67
AUTOMATIC TRANSMISSION SERVICE GROUP
18639 SW 107TH AVENUE
MIAMI, FLORIDA 33157
(305) 670-4161
Copyright © ATSG 2004
Page 2
Updated
April, 2004
INTRODUCTION
IMPORT CHECKBALL BOOK
VOLUME II
This booklet contains the checkball locations, screen locations, check valve locations, and relief valve locations,
for the upper and lower valve bodies, and the accumulator housing if it contains one of the above. We have also
covered any updated information and any changes that may have occured in the many different models years.
This booklet contains some of the Imported transmissions that we have seen in North America. Refer to the
Index page for exact transmission models covered.
No part of any ATSG publication may be reproduced, stored in any retrieval system
or transmitted in any form or by any means, including but not limited to electronic,
mechanical, photocopying, recording or otherwise, without written permission of
Automatic Transmission Service Group. This includes all text illustrations, tables
and charts.
DALE ENGLAND
FIELD SERVICE CONSULTANT
WAYNE COLONNA
TECHNICAL SUPERVISOR
PETER LUBAN
TECHNICAL CONSULTANT
JON GLATSTEIN
TECHNICAL CONSULTANT
ROLAND ALVAREZ
TECHNICAL CONSULTANT
GERALD CAMPBELL
TECHNICAL CONSULTANT
Copyright © ATSG 2004
JIM DIAL
TECHNICAL CONSULTANT
ED KRUSE
TECHNICAL CONSULTANT
GREGORY LIPNICK
TECHNICAL CONSULTANT
DAVID CHALKER
TECHNICAL CONSULTANT
JERRY GOTT
TECHNICAL CONSULTANT
MIKE SOUZA
TECHNICAL CONSULTANT
AUTOMATIC TRANSMISSION SERVICE GROUP
18639 SW 107TH AVENUE
MIAMI, FLORIDA 33157
(305) 670-4161
1
Page 3
CHECKBALL BOOK
Import Volume II
INDEX
MAZDA
Model F3A ..................................................................................................................................... 70
Model G4A-HL ............................................................................................................................. 72
Model F4A-EL .............................................................................................................................. 78
Model G4A-EL .............................................................................................................................. 80
Model GF4A-EL (7 Solenoid) ...................................................................................................... 85
Model N4A-EL .............................................................................................................................. 90
MITSUBISHI
Models KM170, KM171, KM172 .................................................................................................. 92
Models KM175, KM176, KM177 .................................................................................................. 96
SPECTRUM
Model F3A ..................................................................................................................................... 70
SPRINT, SUZUKI, GEO
Model MX17 ................................................................................................................................. 100
SAAB
Model ZF 4HP-18 ......................................................................................................................... 102
Model AW50-42LE......................................................................................................................... 105
VOLKSWAGON PASSAT
Model 096-097 .............................................................................................................................. 108
VOLVO
Model A W50-42LE ...................................................................................................................... 105
VW/AUDI
O1M ............................................................................................................................................. 110
AUTOMATIC TRANSMISSION SERVICE GROUP
18639 SW 107TH AVENUE
MIAMI, FLORIDA 33157
(305) 670-4161
Copyright © ATSG 2004
3
Page 4
SHORT
HOLLOW
DOWEL
CHECKBALL BOOK
Import Volume II
ACURA INTEGRA MODEL "CA"
MAIN VALVE BODY "TOP VIEW"
ACURA INTEGRA
MODEL "CA"
SHORT
HOLLOW
DOWEL
PP
7 S7 S
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
4
AUTOMATIC TRANSMISSION SERVICE GROUP
Copyright © 1999 ATSG
Page 5
CHECKBALL BOOK
Import Volume II
ACURA INTEGRA MODEL "CA"
MAIN VALVE BODY "BOTTOM VIEW"
ACURA INTEGRA
MODEL "CA"
RELIEF VALVE
AND SPRING
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
5
Page 6
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
PRESSURE REGULATOR
VALVE BODY
22
CHECKBALL BOOK
Import Volume II
ACURA INTEGRA MODEL "CA"
ACURA INTEGRA
MODEL "CA"
SHORT
HOLLOW
DOWEL
FLUID
SCREEN
TWO LONG
HOLLOW
DOWELS
5.5mm (.216") DIA.
STEEL CHECKBALL
AND SPRING
SECONDARY
VALVE BODY
5.5mm (.216") DIA.
STEEL CHECKBALL
RELIEF VALVE
AND SPRING
Copyright © 1999 ATSG
6
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 7
CHECKBALL BOOK
Import Volume II
SERVO VALVE BODY
ACURA INTEGRA
MODEL "CA"
CAUTION:
The Servo Release Check Valve is
staked into the servo valve body as
shown, but it can fall out or can be
blown out during cleaning process.
Copyright © 1999 ATSG
SERVO RELEASE
CHECK VALVE
NOTE:
MOST SERVO VALVE BODIES WILL HAVE THIS CHECK VALVE.
AUTOMATIC TRANSMISSION SERVICE GROUP
7
Page 8
CHECKBALL BOOK
Import Volume II
ACURA INTEGRA
MODEL "MPRA"
SHORT
HOLLOW
DOWEL
ACURA INTEGRA MODEL "MPRA"
MAIN VALVE BODY "TOP VIEW"
0
SHORT
HOLLOW
DOWEL
2
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
PROZ
Copyright © 1999 ATSG
8
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 9
CHECKBALL BOOK
Import Volume II
ACURA INTEGRA MODEL "MPRA"
MAIN VALVE BODY "BOTTOM VIEW"
ACURA INTEGRA
MODEL "MPRA"
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
9
Page 10
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
RELIEF VALVE
AND SPRING
SHORT
HOLLOW
DOWEL
CHECKBALL BOOK
Import Volume II
ACURA INTEGRA MODEL "MPRA"
PRESSURE REGULATOR
VALVE BODY
PROPRO
22
QK
ACURA INTEGRA
MODEL "MPRA"
FLUID
SCREEN
SHORT
HOLLOW
DOWEL
1ST ACCUM
CHOKE VALVE
LONG
HOLLOW
DOWEL
FLUID
SCREEN
99
SECONDARY
VALVE BODY
PROPRO
ZZ
LONG
HOLLOW
DOWEL
10
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
AUTOMATIC TRANSMISSION SERVICE GROUP
Copyright © 1999 ATSG
Page 11
CHECKBALL BOOK
Import Volume II
We wish to thank the following for supplying the actual
valve bodies that have made these illustrations possible.
LORY
LORY
TRANSMISSION
TRANSMISSION
PARTS
PARTS
2414 SW 8TH STREET
MIAMI, FLORIDA 33135
INDEPENDENT TRANSMISSION SERVICEINDEPENDENT TRANSMISSION SERVICE
Toll Free (800) 966-4621
Phone (305) 642-4621
Fax (305) 541-1444
5846 SW 68TH STREET
SOUTH MIAMI, FLORIDA 33143
Phone (305) 666-3544
Phone (305) 666-4208
Fax (305) 666-8238
Ask for Mario Aristides
AUTOMATIC TRANSMISSION SERVICE GROUP
11
Page 12
CHECKBALL BOOK
Import Volume II
ACURA LEGEND MODEL "G4"
MAIN VALVE BODY "TOP VIEW"
ACURA LEGEND
MODEL "G4"
SHORT
HOLLOW
DOWEL
SHORT
HOLLOW
DOWEL
PG4PG4
11
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
TT
Copyright © 1999 ATSG
12
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 13
RELIEF VALVE
AND SPRING
CHECKBALL BOOK
Import Volume II
ACURA LEGEND MODEL "G4"
MAIN VALVE BODY "BOTTOM VIEW"
ACURA LEGEND
MODEL "G4"
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
13
Page 14
CHECKBALL BOOK
Import Volume II
ACURA LEGEND MODEL "G4"
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
PRESSURE REGULATOR
VALVE BODY
11
SHORT
HOLLOW
DOWEL
ACURA LEGEND
MODEL "G4"
SECONDARY
VALVE BODY
5.5mm (.216") DIA.
STEEL CHECKBALLS
FLUID
SCREEN
TWO LONG
HOLLOW
DOWELS
RELIEF VALVE
AND SPRING
Copyright © 1999 ATSG
14
33
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 15
CHECKBALL BOOK
Import Volume II
SERVO VALVE BODY
ACURA LEGEND
MODEL "G4"
CAUTION:
The Servo Release Check Valve is
staked into the servo valve body as
shown, but it can fall out or can be
blown out during cleaning process.
Copyright © 1999 ATSG
NOTE:
MOST SERVO VALVE BODIES WILL HAVE THIS CHECK VALVE.
SERVO RELEASE
CHECK VALVE
AUTOMATIC TRANSMISSION SERVICE GROUP
15
Page 16
CHECKBALL BOOK
Import Volume II
BMW ELECTRONIC ZF4HP-22 (4 SOLENOID ONLY)
"LOWER FRONT" VALVE BODY
.175" DIAMETER
CHECKBALL
(Some Models Only)
BMW ZF4HP-22
ELECTRONIC
(4 Solenoid Only)
DIRECT
ACCUMULATOR
.035" Cup Up
INTERMEDIATE
ACCUMULATOR
.040" Cup Up
16
INTERMEDIATE
CLUTCH FEED
.040" Cup Down
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 17
BMW ELECTRONIC ZF4HP-22 (4SOLENOID ONLY)
OVERDRIVE
ACCUMULATOR
.040" Cup Up
CHECKBALL BOOK
Import Volume II
"LOWER REAR" VALVE BODY
BMW ZF4HP-22
ELECTRONIC
(4 Solenoid Only)
PLASTIC VALVE
AND SPRING
INPUT
ACCUMULATOR
.055" Cup Down
AUTOMATIC TRANSMISSION SERVICE GROUP
Copyright © 1999 ATSG
17
Page 18
BMW ELECTRONIC ZF4HP-22 (4 SOLENOID ONLY)
.218" DIAMETER
PLASTIC CHECKBALL
CHECKBALL BOOK
Import Volume II
CHANNEL PLATE
.040" Cup Down
BMW ZF4HP-22
ELECTRONIC
(4 Solenoid Only)
FORWARD
ACCUMULATOR
.032" Cup Down
.047" Cup Down
.250" DIAMETER
PLASTIC CHECKBALL
LOW/REVERSE
ACCUMULATOR
.032" Cup Down
OVERDRIVE
.062" Cup Down
18
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 19
CHECKBALL BOOK
Import Volume II
BMW ELECTRONIC ZF4HP-22 (4 SOLENOID ONLY)
"UPPER RIGHT" AND "UPPER LEFT" VALVE BODY
9
P21/2
1043 427 041
BMW ZF4HP-22
ELECTRONIC
(4 Solenoid Only)
2/1
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
19
Page 20
CHECKBALL BOOK
Import Volume II
BMW ELECTRONIC ZF4HP-22 (5 SOLENOID ONLY)
"LOWER FRONT" VALVE BODY
.175" DIAMETER
CHECKBALL
(Some Models Only)
BMW ZF4HP-22
ELECTRONIC
(5 Solenoid Only)
DIRECT
ACCUMULATOR
.046" Cup Up
INTERMEDIATE
ACCUMULATOR
.032" Cup Up
20
INTERMEDIATE
CLUTCH FEED
.046" Cup Down
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 21
BMW ELECTRONIC ZF4HP-22 (5 SOLENOID ONLY)
OVERDRIVE
ACCUMULATOR
.039" Cup Up
CHECKBALL BOOK
Import Volume II
"LOWER REAR" VALVE BODY
BMW ZF4HP-22
ELECTRONIC
(5 Solenoid Only)
PLASTIC VALVE
AND SPRING
INPUT
ACCUMULATOR
.052" Cup Down
AUTOMATIC TRANSMISSION SERVICE GROUP
Copyright © 1999 ATSG
21
Page 22
CHECKBALL BOOK
Import Volume II
BMW ELECTRONIC ZF4HP-22 (5 SOLENOID ONLY)
CHANNEL PLATE
FORWARD
ACCUMULATOR
.062" Cup Down
BMW ZF4HP-22
ELECTRONIC
(5 Solenoid Only)
015 695
.235" DIAMETER
PLASTIC CHECKBALL
LOW/REVERSE
ACCUMULATOR
.032" Cup Down
OVERDRIVE
.046" Cup Down
22
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 23
CHECKBALL BOOK
Import Volume II
BMW ELECTRONIC ZF4HP-22 (5 SOLENOID ONLY)
"UPPER RIGHT" AND "UPPER LEFT" VALVE BODY
BMW ZF4HP-22
ELECTRONIC
(5 Solenoid Only)
.175" DIAMETER
CHECKBALL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
23
Page 24
CHECKBALL BOOK
Import Volume II
BMW ELECTRONIC ZF5HP-30
"LOWER FRONT" VALVE BODY
Retainer
BMW ZF-5HP-30
ELECTRONIC
Retainer
Copyright © 1999 ATSG
24
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 25
CHECKBALL BOOK
Import Volume II
BMW ELECTRONIC ZF5HP-30
"UPPER REAR" VALVE BODY
Only One .250" (6.35mm) ball is located here.
Do Not install a ball in the pocket marked X.
BMW ZF-5HP-30
ELECTRONIC
X
AUTOMATIC TRANSMISSION SERVICE GROUP
Copyright © 1999 ATSG
25
Page 26
Round Screen
CHECKBALL BOOK
Import Volume II
BMW ZF-5HP-30 CHANNEL PLATE
"UPPER REAR" VALVE BODY SIDE
BMW ZF-5HP-30
ELECTRONIC
1
3
91
1/1
090
1055 627
26
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 27
BMW ZF-5HP-30 CHANNEL PLATE
Replace the original ball with
a plastic .250" (6.35mm) ball.
CHECKBALL BOOK
Import Volume II
"LOWER" VALVE BODY SIDE
BMW ZF-5HP-30
ELECTRONIC
Original
.236" Diameter
.039"
Flat Orifice
.048"
Flat Orifice
.048"
Flat Orifice
PLASTIC VALVE
AND SPRING
.039"
Flat Orifice
.048"
Flat Orifice
.067"
Flat Orifice
AUTOMATIC TRANSMISSION SERVICE GROUP
Copyright © 1999 ATSG
27
Page 28
TWO
SHORT
HOLLOW
DOWELS
CHECKBALL BOOK
Import Volume II
HONDA ACCORD MODEL "AS" CARBURETED
MAIN VALVE BODY "TOP VIEW"
HONDA ACCORD
MODEL "AS"
Carbureted
TWO
SHORT
HOLLOW
DOWELS
5.5mm (.216") DIA.
STEEL CHECKBALL
AND SPRING
96
8
28
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
AUTOMATIC TRANSMISSION SERVICE GROUP
Copyright © 1999 ATSG
Page 29
CHECKBALL BOOK
Import Volume II
HONDA ACCORD MODEL "AS" CARBURETED
MAIN VALVE BODY "BOTTOM VIEW"
HONDA ACCORD
MODEL "AS"
Carbureted
RELIEF VALVE
AND SPRING
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
29
Page 30
HONDA ACCORD MODEL "AS" CARBURETED
5.5mm (.216") DIA.
STEEL CHECKBALL
CHECKBALL BOOK
Import Volume II
"PRESSURE REGULATOR" VALVE BODY
PRESSURE REGULATOR
HONDA ACCORD
MODEL "AS"
Carbureted
VALVE BODY
Top View
PRESSURE REGULATOR
VALVE BODY
Bottom View
SHORT
HOLLOW
DOWEL
SHORT
HOLLOW
DOWEL
95
Copyright © 1999 ATSG
30
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 31
CHECKBALL BOOK
Import Volume II
SERVO VALVE BODY
HONDA ACCORD
MODEL "AS"
Carbureted
CAUTION:
The Servo Release Check Valve is
staked into the servo valve body as
shown, but it can fall out or can be
blown out during cleaning process.
Copyright © 1999 ATSG
SERVO RELEASE
CHECK VALVE
NOTE:
MOST SERVO VALVE BODIES WILL HAVE THIS CHECK VALVE.
AUTOMATIC TRANSMISSION SERVICE GROUP
31
Page 32
HONDA PRELUDE AND ACCORD MODEL "F4"
5.5mm (.216") DIAMETER
STEEL CHECKBALL
1988-1989 Models Only
LONG
SOLID
DOWEL
CHECKBALL BOOK
Import Volume II
MAIN VALVE BODY "TOP VIEW"
1
N
HONDA PRELUDE
AND ACCORD
MODEL "F4"
TWO
SHORT
HOLLOW
DOWELS
PF4
9S
TT
32
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
AUTOMATIC TRANSMISSION SERVICE GROUP
Copyright © 1999 ATSG
Page 33
CHECKBALL BOOK
Import Volume II
HONDA PRELUDE AND ACCORD MODEL "F4"
MAIN VALVE BODY "BOTTOM VIEW"
HONDA PRELUDE
AND ACCORD
MODEL "F4"
RELIEF VALVE
AND SPRING
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
33
Page 34
HONDA PRELUDE AND ACCORD MODEL "F4"
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
PRESSURE REGULATOR
VALVE BODY
77
FLUID
SCREEN
CHECKBALL BOOK
Import Volume II
HONDA PRELUDE
HOLLOW
DOWEL
5.5mm (.216") DIA.
STEEL CHECKBALL
AND SPRING
*
AND ACCORD
MODEL "F4"
SHORT
TWO LONG
HOLLOW
DOWELS
SECONDARY
VALVE BODY
5.5mm (.216") DIA.
STEEL CHECKBALL
34
SOME 1989 MODELS MAY NOT USE SPRING.
*
AUTOMATIC TRANSMISSION SERVICE GROUP
RELIEF VALVE
AND SPRING
Copyright © 1999 ATSG
Page 35
CHECKBALL BOOK
Import Volume II
SERVO VALVE BODY
HONDA PRELUDE
AND ACCORD
MODEL "F4"
CAUTION:
The Servo Release Check Valve is
staked into the servo valve body as
shown, but it can fall out or can be
blown out during cleaning process.
Copyright © 1999 ATSG
SERVO RELEASE
CHECK VALVE
NOTE:
MOST SERVO VALVE BODIES WILL HAVE THIS CHECK VALVE.
AUTOMATIC TRANSMISSION SERVICE GROUP
35
Page 36
CHECKBALL BOOK
Import Volume II
HONDA ACCORD
MODELS "PX4B" "APX4"
"MPOA" "AOYA" "BOYA"
HONDA ACCORD MODELS "PX4B" "APX4" "MPOA" "AYOA" "BOYA"
MAIN VALVE BODY "TOP VIEW"
SHORT
HOLLOW
DOWEL
SHORT
HOLLOW
DOWEL
12
FLUID
SCREEN
PX4-00
36
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 37
CHECKBALL BOOK
Import Volume II
HONDA ACCORD
MODELS "PX4B" "APX4"
"MPOA" "AOYA" "BOYA"
HONDA ACCORD MODELS "PX4B" "APX4" "MPOA" "AOYA" "BOYA"
MAIN VALVE BODY "BOTTOM VIEW"
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
37
Page 38
CHECKBALL BOOK
Import Volume II
HONDA ACCORD
MODELS "PX4B" "APX4"
"MPOA" "AOYA" "BOYA"
HONDA ACCORD MODELS "PX4B" "APX4" "MPOA" "AOYA" "BOYA"
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
RELIEF VALVE
AND SPRING
SECONDARY
VALVE BODY
SHORT
HOLLOW
DOWEL
PRESSURE REGULATOR
VALVE BODY
5.5mm (.216") DIA.
STEEL CHECKBALLS
FLUID
SCREEN
SHORT
HOLLOW
DOWEL
LONG
HOLLOW
DOWEL
LONG
HOLLOW
DOWEL
O8
A
Copyright © 1999 ATSG
38
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 39
CHECKBALL BOOK
Import Volume II
HONDA ACCORD
MODELS "PX4B" "APX4"
"MPOA" "AOYA" "BOYA"
HONDA ACCORD MODELS "PX4B" "APX4" "MPOA" "AOYA" "BOYA"
ACCUMULATOR BODY
ACCUMULATOR
BODY COVER
1ST ACCUMULAT OR
CHOKE VALVE
5.5mm (.216") DIA.
Not Necessary
To Remove
STEEL BALL
BOTTOM VIEW
SHORT
HOLLOW
DOWEL
AUTOMATIC TRANSMISSION SERVICE GROUP
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
39
Page 40
SHORT
HOLLOW
DOWEL
CHECKBALL BOOK
Import Volume II
HONDA CIVIC MODEL "CA"
MAIN VALVE BODY "TOP VIEW"
HONDA CIVIC
MODEL "CA"
SHORT
HOLLOW
DOWEL
PP
7 S7 S
40
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
AUTOMATIC TRANSMISSION SERVICE GROUP
Copyright © 1999 ATSG
Page 41
CHECKBALL BOOK
Import Volume II
HONDA CIVIC MODEL "CA"
MAIN VALVE BODY "BOTTOM VIEW"
HONDA CIVIC
MODEL "CA"
RELIEF VALVE
AND SPRING
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
41
Page 42
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
PRESSURE REGULATOR
VALVE BODY
22
CHECKBALL BOOK
Import Volume II
HONDA CIVIC MODEL "CA"
HONDA CIVIC
MODEL "CA"
SHORT
HOLLOW
DOWEL
FLUID
SCREEN
TWO LONG
HOLLOW
DOWELS
5.5mm (.216") DIA.
STEEL CHECKBALL
AND SPRING
SECONDARY
VALVE BODY
5.5mm (.216") DIA.
STEEL CHECKBALL
42
RELIEF VALVE
AND SPRING
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 43
CHECKBALL BOOK
Import Volume II
SERVO VALVE BODY
HONDA CIVIC
MODEL "CA"
CAUTION:
The Servo Release Check Valve is
staked into the servo valve body as
shown, but it can fall out or can be
blown out during cleaning process.
Copyright © 1999 ATSG
SERVO RELEASE
CHECK VALVE
NOTE:
MOST SERVO VALVE BODIES WILL HAVE THIS CHECK VALVE.
AUTOMATIC TRANSMISSION SERVICE GROUP
43
Page 44
CHECKBALL BOOK
Import Volume II
HONDA CIVIC
MODEL "L4", "ML4A"
1988 Model Only
1988 HONDA CIVIC MODEL "L4", "ML4A"
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
SHORT
HOLLOW
DOWEL
MAIN VALVE BODY "TOP VIEW"
33
1
B
RELIEF VALVE
AND SPRING
SHORT
HOLLOW
DOWEL
PL4
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
FLUID
SCREEN
LONG
SOLID
DOWEL
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
44
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 45
CHECKBALL BOOK
Import Volume II
1988 HONDA CIVIC MODEL "L4", "ML4A"
MAIN VALVE BODY "BOTTOM VIEW"
HONDA CIVIC
MODEL "L4", "ML4A"
1988 Model Only
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
45
Page 46
CHECKBALL BOOK
Import Volume II
HONDA CIVIC
MODEL "L4", "ML4A"
1988 Model Only
1988 HONDA CIVIC MODEL "L4", "ML4A"
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
RELIEF VALVE
AND SPRING
(Valve in First)
PRESSURE REGULATOR
VALVE BODY
TWO LONG
HOLLOW
DOWELS
TWO SHORT
HOLLOW
DOWELS
SECONDARY
VALVE BODY
5.5mm (.216") DIA.
STEEL CHECKBALL
AND SPRING
5.5mm (.216") DIAMETER
STEEL CHECKBALL
Copyright © 1999 ATSG
46
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 47
CHECKBALL BOOK
Import Volume II
HONDA CIVIC
MODEL "L4", "ML4A"
89-90 Model Only
1989-1990 HONDA CIVIC MODEL "L4", "ML4A"
5.5mm (.216") DIAMETER
STEEL CHECKBALL
MAIN VALVE BODY "TOP VIEW"
3
2
RELIEF VALVE
AND SPRING
Valve In First
TWO
SHORT
HOLLOW
DOWELS
PP6
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
FLUID
SCREEN
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
47
Page 48
CHECKBALL BOOK
Import Volume II
1989-1990 HONDA CIVIC MODEL "L4", "ML4A"
MAIN VALVE BODY "BOTTOM VIEW"
HONDA CIVIC
MODEL "L4", "ML4A"
89-90 Model Only
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
48
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 49
CHECKBALL BOOK
Import Volume II
HONDA CIVIC
MODEL "L4", "ML4A"
89-90 Model Only
1989-1990 HONDA CIVIC MODEL "L4", "ML4A"
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
RELIEF VALVE
AND SPRING
(Valve in First)
PRESSURE REGULATOR
VALVE BODY
SHORT
HOLLOW
DOWEL
SECONDARY
VALVE BODY
TWO SHORT
HOLLOW
DOWELS
5.5mm (.216") DIA.
STEEL CHECKBALLS
SHORT
HOLLOW
DOWEL
PP6
Y
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
49
Page 50
SHORT
HOLLOW
DOWEL
CHECKBALL BOOK
Import Volume II
HONDA CIVIC MODEL "M24A"
MAIN VALVE BODY "TOP VIEW"
HONDA CIVIC
MODEL "M24A"
SHORT
HOLLOW
DOWEL
E-8E-8
VV
VV
9292
P24P24
1515
11
50
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
AUTOMATIC TRANSMISSION SERVICE GROUP
Copyright © 1999 ATSG
Page 51
CHECKBALL BOOK
Import Volume II
HONDA CIVIC MODEL "M24A"
MAIN VALVE BODY "BOTTOM VIEW"
HONDA CIVIC
MODEL "M24A"
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
51
Page 52
CHECKBALL BOOK
Import Volume II
HONDA CIVIC
MODEL "M24A"
HONDA CIVIC MODEL "M24A"
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
RELIEF VALVES
AND SPRINGS
SHORT
HOLLOW
DOWEL
5.5mm (.216") DIA.
STEEL CHECKBALLS
PRESSURE REGULATOR
VALVE BODY
H
1ST ACCUM.
CHOKE VALVE
SHORT
HOLLOW
DOWEL
2
SECONDARY
VALVE BODY
LONG
HOLLOW
DOWEL
LONG
HOLLOW
DOWEL
FLUID
SCREEN
Copyright © 1999 ATSG
52
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 53
CHECKBALL BOOK
Import Volume II
HONDA CIVIC MODEL "A4RA"
MAIN VALVE BODY "TOP VIEW"
HONDA CIVIC
MODEL "A4RA"
SHORT
HOLLOW
DOWEL
1ST ACCUMULAT OR
CHOKE VALVE
SHORT
HOLLOW
DOWEL
P4R1
FLUID
SCREEN
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
53
Page 54
CHECKBALL BOOK
Import Volume II
HONDA CIVIC MODEL "A4RA"
MAIN VALVE BODY "BOTTOM VIEW"
HONDA CIVIC
MODEL "A4RA"
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
54
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 55
CHECKBALL BOOK
Import Volume II
HONDA CIVIC
MODEL "A4RA"
HONDA CIVIC MODEL "A4RA"
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
RELIEF VALVES
AND SPRINGS
SHORT
HOLLOW
DOWEL
P
2
2
SECONDARY
VALVE BODY
PRESSURE REGULATOR
VALVE BODY
SHORT
HOLLOW
DOWEL
LONG
HOLLOW
DOWEL
LONG
HOLLOW
DOWEL
P4R 2
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
55
Page 56
CHECKBALL BOOK
Import Volume II
HONDA PRELUDE "Early" MODEL "K4"
MAIN VALVE BODY "TOP VIEW"
HONDA PRELUDE
Early MODEL "K4"
SHORT
HOLLOW
DOWEL
ONE FLUID
SCREEN
SHORT
HOLLOW
DOWEL
PK4PK4
22
SS
66
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
Copyright © 1999 ATSG
56
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 57
CHECKBALL BOOK
Import Volume II
HONDA PRELUDE "Early" MODEL "K4"
MAIN VALVE BODY "BOTTOM VIEW"
HONDA PRELUDE
Early MODEL "K4"
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
57
Page 58
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
PRESSURE REGULATOR
VALVE BODY
TWO
SHORT
HOLLOW
DOWELS
CHECKBALL BOOK
Import Volume II
HONDA PRELUDE "Early" MODEL "K4"
PP
KK
44
HONDA PRELUDE
Early MODEL "K4"
5.5mm (.216")
CHECKBALL
AND SPRING
LONG
HOLLOW
DOWEL
SECONDARY
VALVE BODY
LONG
HOLLOW
DOWEL
TWO FLUID
SCREENS
5.5mm (.216")
CHECKBALL
AND SPRING
58
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 59
CHECKBALL BOOK
Import Volume II
SERVO VALVE BODY
HONDA PRELUDE
Early MODEL "K4"
CAUTION:
The Servo Release Check Valve is
staked into the servo valve body as
shown, but it can fall out or can be
blown out during cleaning process.
Copyright © 1999 ATSG
NOTE:
MOST SERVO VALVE BODIES WILL HAVE THIS CHECK VALVE.
SERVO RELEASE
CHECK VALVE
AUTOMATIC TRANSMISSION SERVICE GROUP
59
Page 60
CHECKBALL BOOK
Import Volume II
HONDA PRELUDE "Late" MODEL "K4"
MAIN VALVE BODY "TOP VIEW"
HONDA PRELUDE
Late MODEL "K4"
SHORT
HOLLOW
DOWEL
TWO FLUID
SCREENS
SHORT
HOLLOW
DOWEL
A
A
PK4
PK4
22
66
SS
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
Copyright © 1999 ATSG
60
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 61
CHECKBALL BOOK
Import Volume II
HONDA PRELUDE "Late" MODEL "K4"
MAIN VALVE BODY "BOTTOM VIEW"
HONDA PRELUDE
Late MODEL "K4"
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
61
Page 62
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
PRESSURE REGULATOR
VALVE BODY
SHORT
HOLLOW
DOWEL
CHECKBALL BOOK
Import Volume II
HONDA PRELUDE "Late" MODEL "K4"
PP
KK
44
HONDA PRELUDE
Late MODEL "K4"
SHORT
HOLLOW
DOWEL
SECONDARY
VALVE BODY
TWO LONG
HOLLOW
DOWELS
FLUID
SCREEN
5.5mm (.216")
CHECKBALL
AND SPRING
62
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 63
CHECKBALL BOOK
Import Volume II
SERVO VALVE BODY
HONDA PRELUDE
Late MODEL "K4"
CAUTION:
The Servo Release Check Valve is
staked into the servo valve body as
shown, but it can fall out or can be
blown out during cleaning process.
Copyright © 1999 ATSG
NOTE:
MOST SERVO VALVE BODIES WILL HAVE THIS CHECK VALVE.
SERVO RELEASE
CHECK VALVE
AUTOMATIC TRANSMISSION SERVICE GROUP
63
Page 64
CHECKBALL BOOK
Import Volume II
HONDA PRELUDE MODEL "PY8A"
MAIN VALVE BODY "TOP VIEW"
HONDA PRELUDE
MODEL "PY8A"
SHORT
HOLLOW
DOWEL
FLUID
SCREEN
SHORT
HOLLOW
DOWEL
PY8
V
LONG
SOLID
DOWEL
5.5mm (.216") DIAMETER
STEEL CHECKBALLS
Copyright © 1999 ATSG
64
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 65
CHECKBALL BOOK
Import Volume II
HONDA PRELUDE MODEL "PY8A"
MAIN VALVE BODY "BOTTOM VIEW"
HONDA PRELUDE
MODEL "PY8A"
SHORT
HOLLOW
DOWEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
65
Page 66
CHECKBALL BOOK
Import Volume II
HONDA PRELUDE MODEL "PY8A"
"PRESSURE REGULATOR" AND "SECONDARY" VALVE BODY
PRESSURE REGULATOR
VALVE BODY
SHORT
HOLLOW
DOWEL
PP
KK
44
HONDA PRELUDE
MODEL "PY8A"
SHORT
HOLLOW
DOWEL
FLUID
SCREEN
TWO LONG
HOLLOW
DOWELS
N
5.5mm (.216") DIA.
STEEL CHECKBALL
SECONDARY
VALVE BODY
66
5.5mm (.216") DIA.
STEEL CHECKBALL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 67
CHECKBALL BOOK
Import Volume I
HONDA PASSPORT CHECKBALL LOCATIONS
4L30-E OVERDRIVE CASE
REVERSE SHUTTLE
CHECKBALL
(Some Models Only)
HONDA
PASSPORT
(4L30-E)
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
67
Page 68
HONDA PASSPORT CHECKBALL LOCATIONS
3RD CLUTCH
CHECKBALL
CHECKBALL BOOK
Import Volume I
4L30-E MAIN VALVE BODY
HONDA
PASSPORT
(4L30-E)
Copyright © 1999 ATSG
68
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 69
CHECKBALL BOOK
Import Volume I
HONDA PASSPORT CHECKBALL LOCATIONS
4L30-E MAIN CASE
D-3-2 SHUTTLE
CHECKBALL
HONDA
PASSPORT
(4L30-E)
3RD CLUTCH
QUICK DUMP
CHECKBALL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
69
Page 70
DIRECT CLUTCH
FEED ORIFICE,
REVERSE ONLY
(No Spring)
CHECKBALL BOOK
Import Volume II
F3A/KF-100 TRANSAXLE
"UPPER" VALVE BODY AND CASE
F3A/KF-100
TRANSAXLE CASE
CONVERTER PRESSURE
RELIEF BALL AND SPRING
Copyright © 1999 ATSG
70
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 71
THROTTLE PRESSURE
RELIEF BALL AND SPRING
CHECKBALL BOOK
Import Volume II
F3A/KF-100 TRANSAXLE
"LOWER" VALVE BODY
F3A/KF-100
SERVO RELEASE
ORIFICE AND SPRING
DIRECT CLUTCH
FEED ORIFICE
AND SPRING
(3rd Gear Only)
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
71
Page 72
CHECKBALL BOOK
Import Volume II
MAZDA G4A-HL
"REAR" CONTROL VALVE BODY
ORIFICE AND CHECKBALL LOCATIONS
MAZDA
G4A-HL
CONVERTER RELIEF
BALL AND SPRING
.250" DIA. STEEL
REVERSE CLUTCH
FEED ORIFICE (.063")
AND SPRING
FORWARD CLUTCH
FEED ORIFICE (.078")
AND SPRING
LOW/REV CLUTCH
EXHAUST ORIFICE (.039")
AND SPRING
Some Models Only
.250" DIAMETER
RUBBER BALL
LOW/REV CLUTCH
FEED ORIFICE (.079")
AND SPRING
Copyright © 1999 ATSG
72
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 73
"MAIN" CONTROL VALVE BODY, REAR BODY SIDE
ORIFICE AND CHECKBALL LOCATIONS
COAST CLUTCH
MANUAL 1 & 2
FEED ORIFICE (.059")
AND SPRING
CHECKBALL BOOK
Import Volume II
MAZDA G4A-HL
.250" DIAMETER
RUBBER BALL
MAZDA
G4A-HL
COAST CLUTCH
DRIVE RANGE
FEED ORIFICE (.079")
AND SPRING
FLUID
SCREEN
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
73
Page 74
CHECKBALL BOOK
Import Volume II
MAZDA G4A-HL
"MAIN" CONTROL VALVE BODY, PREMAIN BODY SIDE
ORIFICE AND CHECKBALL LOCATIONS
.250" DIAMETER
RUBBER BALLS
MAZDA
G4A-HL
Copyright © 1999 ATSG
74
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 75
CHECKBALL BOOK
Import Volume II
MAZDA G4A-HL
"PREMAIN" CONTROL VALVE BODY, MAIN BODY SIDE
ORIFICE AND CHECKBALL LOCATIONS
THROTTLE PRESSURE
2/4 BAND
FEED ORIFICE (.047")
AND SPRING
COAST CLUTCH
FEED ORIFICE (.039")
AND SPRING
RELIEF BALL AND SPRING
MAZDA
G4A-HL
3/4 CLUTCH
FEED ORIFICE (.047")
AND SPRING
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
75
Page 76
CHECKBALL BOOK
Import Volume II
MAZDA G4A-HL
"PREMAIN" CONTROL VALVE BODY, FRONT BODY SIDE
ORIFICE AND CHECKBALL LOCATIONS
.250" DIAMETER
RUBBER BALLS
MAZDA
G4A-HL
CC
# 1# 1
6
7
2
6
A
O
S
U
F
X
T
4
T
6
A
7
76
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 77
CHECKBALL BOOK
Import Volume II
We wish to thank the following for supplying the actual
valve bodies that have made these illustrations possible.
LORY
LORY
TRANSMISSION
TRANSMISSION
PARTS
PARTS
2414 SW 8TH STREET
MIAMI, FLORIDA 33135
INDEPENDENT TRANSMISSION SERVICEINDEPENDENT TRANSMISSION SERVICE
Toll Free (800) 966-4621
Phone (305) 642-4621
Fax (305) 541-1444
5846 SW 68TH STREET
SOUTH MIAMI, FLORIDA 33143
Phone (305) 666-3544
Phone (305) 666-4208
Fax (305) 666-8238
Ask for Mario Aristides
AUTOMATIC TRANSMISSION SERVICE GROUP
77
Page 78
CHECKBALL BOOK
FLUID
SCREEN
Import Volume II
MAZDA F4A-EL
MAIN VALVE BODY
.236" DIAMETER
RUBBER CHECKBALL
REVERSE CLUTCH FEED
MAZDA
F4A-EL
.236" DIAMETER
RUBBER CHECKBALL
THIRD CIRCUIT FEED
FLUID
SCREENS
Copyright © 1999 ATSG
78
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 79
CHECKBALL BOOK
Import Volume II
MAZDA F4A-EL
LOWER VALVE BODY AND THROTTLE VALVE BODY
.236" DIAMETER
RUBBER CHECKBALL
FORWARD CLUTCH FEED
.236" DIAMETER
RUBBER CHECKBALL
LOW/REVERSE SHUTTLE
MAZDA
F4A-EL
.250" DIAMETER
STEEL CHECKBALL
AND SPRING FOR
THROTTLE VALVE LIMIT
.236" DIAMETER
RUBBER CHECKBALL
COAST CLUTCH FEED
SCREEN SNAPS
INTO SPACER PLATE
SPACER
PLATE
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
79
Page 80
CHECKBALL BOOK
Import Volume II
MAZDA G4A-EL
PREMAIN VALVE BODY "COVER SIDE"
3/4 CLUTCH
FEED ORIFICE
(.031" - .071")
MAZDA
G4A-EL
2020
4D4D
Copyright © 1999 ATSG
80
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 81
PREMAIN VALVE BODY "MAIN BODY SIDE"
3/4 BAND APPLY
ORIFICE (.077")
CHECKBALL BOOK
Import Volume II
MAZDA G4A-EL
FORWARD CLUTCH
FEED ORIFICE (.077")
MAZDA
G4A-EL
THROTTLE PRESSURE
RELIEF BALL AND SPRING
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
81
Page 82
CHECKBALL BOOK
Import Volume II
MAZDA G4A-EL
MAIN VALVE BODY "PREMAIN BODY SIDE"
CONVERTER PRESSURE
RELIEF BALL AND SPRING
(Ball Down First)
MAZDA
G4A-EL
2/4 BAND APPLY
ORIFICE (.031")
Copyright © 1999 ATSG
82
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 83
MAIN VALVE BODY "REAR BODY SIDE"
MANUAL 1ST/REVERSE
FEED ORIFICE
(.079" - .117")
CHECKBALL BOOK
Import Volume II
MAZDA G4A-EL
MAZDA
G4A-EL
MANUAL 1ST/REVERSE
SHUTTLE BALL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
83
Page 84
CHECKBALL BOOK
Import Volume II
MAZDA G4A-EL
REAR VALVE BODY
MAZDA
G4A-EL
COAST CLUTCH
FEED ORIFICE (.039")
REAR CLUTCH
FEED ORIFICE (.039")
LOW/REVERSE
EXHAUST ORIFICE (.077")
(Eliminated in 90-Up Models)
Copyright © 1999 ATSG
84
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 85
CHECKBALL BOOK
Import Volume II
MAZDA GF4A-EL, 7 SOLENOID
PREMAIN VALVE BODY "COVER SIDE", AND COVER
PREMAIN
COVER
MAZDA
GF4A-EL
7 Solenoid
FF
D-5D-5
.250" DIAMETER
RUBBER CHECKBALLS
EE
FF
GG
FF
2020
4D4D
9C
FU9CFU
FF
FF
FF
EE
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
85
Page 86
CHECKBALL BOOK
Import Volume II
MAZDA GF4A-EL, 7 SOLENOID
PREMAIN VALVE BODY "MAIN BODY SIDE"
MAZDA
GF4A-EL
7 Solenoid
FLUID
SCREEN
.250" DIAMETER
RUBBER CHECKBALLS
Copyright © 1999 ATSG
86
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 87
CHECKBALL BOOK
Import Volume II
MAZDA GF4A-EL, 7 SOLENOID
MAIN VALVE BODY "PREMAIN BODY SIDE"
MAZDA
GF4A-EL
7 Solenoid
.250" DIAMETER
RUBBER CHECKBALL
FLUID
SCREEN
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
87
Page 88
FLUID
SCREEN
CHECKBALL BOOK
Import Volume II
MAZDA GF4A-EL, 7 SOLENOID
MAIN VALVE BODY "REAR BODY SIDE"
1111
L
L4
4
MAZDA
GF4A-EL
7 Solenoid
.250" DIA. RUBBER
CHECKBALLS
.250" DIA. RUBBER
CHECKBALLS
88
FLUID
SCREENS
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 89
CHECKBALL BOOK
Import Volume II
MAZDA GF4A-EL, 7 SOLENOID
REAR VALVE BODY "MAIN BODY SIDE"
MAZDA
GF4A-EL
7 Solenoid
FLUID
SCREENS
.250" DIA. RUBBER
CHECKBALLS
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
89
Page 90
FEED ORIFICE "A"
(.071") AND SPRING
CHECKBALL BOOK
Import Volume II
MAZDA N4A-EL
LOWER VALVE BODY "UPPER BODY SIDE"
THROTTLE RELIEF
PLUG (No Orifice)
AND SPRING
FEED ORIFICE "B"
(.087") AND SPRING
BALL .250" STEEL
MAZDA
N4A-EL
AND SPRING
Copyright © 1999 ATSG
90
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 91
FEED ORIFICE "C"
(.071") AND SPRING
CHECKBALL BOOK
Import Volume II
MAZDA N4A-EL
LOWER VALVE BODY "COVER SIDE"
FEED ORIFICE "D"
(.059") AND SPRING
FEED ORIFICE "F"
(.039") AND SPRING
MAZDA
N4A-EL
FEED ORIFICE "E"
(.043") AND SPRING
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
91
Page 92
"UPPER" VALVE BODY CHECKBALL LOCATIONS
2ND GEAR ORIFICE
CONTROL CHECKBALL
6.35mm (.250") DIA.
CHECKBALL BOOK
Import Volume II
MITSUBISHI KM171
MITSUBISHI
KM 170
KM 171
KM 172
SEPERATES T.V. AND
LINE PRESSURE
6.35mm (.250") DIA.
3RD/REVERSE
SHUTTLE BALL
6.35mm (.250") DIA.
REVERSE ORIFICE
CONTROL CHECKBALL
6.35mm (.250") DIA.
Copyright © 1999 ATSG
92
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 93
CHECKBALL BOOK
Import Volume II
MITSUBISHI KM171
INTERMEDIATE PLATE "UPPER" VALVE BODY SIDE
CHECKBALL LOCATIONS
SOLENOID
FILTER
Lock-Up Models Only
LOW RELIEF
BALL AND SPRING
SPRING FREE LENGTH = .485"
CHECKBALL DIAMETER = .250"
MITSUBISHI
KM 170
KM 171
KM 172
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
93
Page 94
CHECKBALL BOOK
Import Volume II
MITSUBISHI KM171
INTERMEDIATE PLATE "LOWER" VALVE BODY SIDE
CHECKBALL LOCATIONS
LINE PRESSURE
BALL AND SPRING
SPRING FREE LENGTH = .670"
CHECKBALL DIAMETER = .250"
MITSUBISHI
KM 170
KM 171
KM 172
N/D CONTROL CHECKBALLS
6.35mm (.250") DIAMETER
3A/T
1
Copyright © 1999 ATSG
94
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 95
CHECKBALL BOOK
Import Volume II
We wish to thank the following for supplying the actual
valve bodies that have made these illustrations possible.
LORY
LORY
TRANSMISSION
TRANSMISSION
PARTS
PARTS
2414 SW 8TH STREET
MIAMI, FLORIDA 33135
INDEPENDENT TRANSMISSION SERVICEINDEPENDENT TRANSMISSION SERVICE
Toll Free (800) 966-4621
Phone (305) 642-4621
Fax (305) 541-1444
5846 SW 68TH STREET
SOUTH MIAMI, FLORIDA 33143
Phone (305) 666-3544
Phone (305) 666-4208
Fax (305) 666-8238
Ask for Mario Aristides
AUTOMATIC TRANSMISSION SERVICE GROUP
95
Page 96
CHECKBALL BOOK
MITSUBISHI KM175, KM176, KM177
"UPPER" VALVE BODY CHECKBALL LOCATIONS
NEUTRAL - REVERSE
CONTROL CHECKBALL
6.35mm (.250") DIAMETER STEEL
Import Volume II
6.35mm (.250") DIAMETER TEFLON®
MITSUBISHI
KM 175
KM 176
KM 177
FORWARD CLUTCH ORIFICE
CONTROL CHECKBALL
NEUTRAL/DRIVE
PLATE
DIRECT CLUTCH ORIFICE
CONTROL CHECKBALL
6.35mm (.250") DIAMETER STEEL
STOPPER PLATES
FORWARD CLUTCH EXHAUST
ORIFICE CONTROL BALL
6.35mm (.250") DIAMETER STEEL
Copyright © 1999 ATSG
96
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 97
CHECKBALL BOOK
Import Volume II
MITSUBISHI KM175, KM176, KM177
INTERMEDIATE PLATE "LOWER" VALVE BODY SIDE
CHECKBALL LOCATIONS
LINE PRESSURE
BALL AND SPRING
FILTER
MITSUBISHI
KM 175
KM 176
KM 177
END CLUTCH ORIFICE
CONTROL CHECKBALL
6.35mm (.250") DIAMETER STEEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
97
Page 98
CHECKBALL BOOK
MITSUBISHI F4A3, W4A3
"UPPER" VALVE BODY CHECKBALL LOCATIONS
NEUTRAL - REVERSE
CONTROL CHECKBALL
6.35mm (.250") DIAMETER STEEL
Import Volume II
6.35mm (.250") DIAMETER TEFLON®
MITSUBISHI
F4A3
W4A3
FORWARD CLUTCH ORIFICE
CONTROL CHECKBALL
NEUTRAL/DRIVE
PLATE
DIRECT CLUTCH ORIFICE
CONTROL CHECKBALL
6.35mm (.250") DIAMETER STEEL
STOPPER PLATES
FORWARD CLUTCH EXHAUST
ORIFICE CONTROL BALL
6.35mm (.250") DIAMETER STEEL
Copyright © 1999 ATSG
98
AUTOMATIC TRANSMISSION SERVICE GROUP
Page 99
CHECKBALL BOOK
Import Volume II
MITSUBISHI F4A3, W4A3
INTERMEDIATE PLATE "LOWER" VALVE BODY SIDE
CHECKBALL LOCATIONS
LINE PRESSURE
BALL AND SPRING
FILTER
MITSUBISHI
F4A3
W4A3
END CLUTCH ORIFICE
CONTROL CHECKBALL
6.35mm (.250") DIAMETER STEEL
Copyright © 1999 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
99
Page 100
CHECKBALL BOOK
Import Volume II
MX17 SPRINT, SUZUKI & GEO
"UPPER" VALVE BODY
CHECKBALL LOCATIONS
MXI7
SPRINT
SUZUKI & GEO
NO. 3
NO. 1
NO. 4
NO. 2
100
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AUTOMATIC TRANSMISSION SERVICE GROUP
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