Gear HONDA CIVIC 1997 6.G Workshop Manual

Transmission
26. Slip the special tool onto the mainshaft as shown,
MAINSHAFT HOLDER07GAB - PF50101
Installthe park lever on the control shaft.
Assemble the one-way clutch and the park gearwith the countershaft lst gear (see page l4-1S5).
Install the countershaft lst gear collar. needle bear_ing, and the countershaft 1st gearlpark gear assembly
Reassembly (cont'dl
on the countershaft.
lSTCLUTCH PARKASSEMBLY GEAR
27.
28.
29.
30.Install the park pawl shaft, spring, pawl, and pawlstop on the transmission housing, then engage thepark pawlwith the park gear.
14-180
31. Install the mainshaft 1st gear collar on the main_shaft.
32. Wrap the shaft splines with tape to prevent the O-rings, then install new O-rings on the mainshaft,
33. Assemble the thrust washer, thrust needle bearing,needle bearing, and mainshaft ?st gear in the lstclutch assembly, then install them on the mainshaft.
34. Install new conical spring washers and locknuts oneach shaft.
CAUTION: Install the conical spring washers in thedirection shown.
MAINSHAFTLOCKNUTLeft hand threads
CONICAL SPRING WASHERSinstall in this direction.
35. Tighten the locknuts to the specified torque.
NOTE:
. Do not use an impact wrench. Alwavs use atorque w.ench to tighten the locknut.. Mainshaft and countershaft locknuts have left_hand threads.
TOROUE:
MAINSHAFT 78 N.m (8.0 kgf.m, 58 tbf.ft)COUNTERSHAFT t03 N.m 1r0.5 kgf.m, 75.9 tbt.ftl

36. Remove the special tool from mainshaft, then stake
each locknut using a 3.5 mm punch as shown'
COUNTERSHAFTLOCKNUT
Set the park lever in the El position, then verify that
the park Pawl engages the Park gear
lf the Dawl does not engage fully, check the park
pawl stop clearance (see page 14-175).
Tighten the lock boll and bend the lock tab'
10 tbl.ftl
a'f
38.
ao
LOCKWASHEF
0.7 - 1.2 mm(0.03 - 0.05 in)
Erl.Omm14 t{.m (1.4 kgf'm,
\.- (o)
40. Instsllthe end cover with two dowel pinsandanew
gasket (thirteen bolts)'
TOROUE: 12 N'm (1.2 tgf'm. 8.7 lbf'ft}
END COVER
lnstall the ATF cooler lines with new sealing wash-
9rs.
TOROUE: 28 N.m {2.9 kgf'm. 21 lbt'ft1
Install the ATF diPstick.
41.
14-181

16. Install a new set ring on the end of each driveshaft'
17. Installthe right and left driveshafts (see ssction 16)
CAUTION: Whil6 installing the driveshafE in the
diffarential, be surs not lo allow du3t and othor for-
eign particl€s to enler into the transmission.
NOTE:
. Clean the areas where the driveshafts contact the
transmission (differential) thoroughly with sol-
vent or carburetor cleaner, and dry with com-
pressed air.
. Turn the right and left steering knuckle fully out-
ward, and slide each driveshaft into the differen-
tial until you feel its set ring clip engage the side
gear.
18. Install the damper fork, then install the rightand left
ball joints to the each lower arm with the castle nuts
and new cotter Plns.
DAMPER PINCH BOLT
10 x 1 .25 mma3 N.m l4.ia kgf.m,
32 tbl.ftl
4l
COTTERReplace.SELF.LOCKING NUT
12 x 1.25 mm
6il N.m t6.5 kgf'm, il7 lbf ftl
Replace.
19. Install the splash shield.
{5.0 - 6.0 kgf m, 36 - iB lbf'ft|
CASTLE NUT12 x 1,25 mm49 - 59 N.m
20. Connect the mainshaft speed sensor, the linear sole-
noid and the shift control solenoid connectors.
SHIFT CONTROL SOLENOIO LINEAR SOITNO|o
CONNECTOR CONNECTOR
6 r 1.0 mrn12 N.m (1.219f.m,
E.7 lbf.frl
CONNECTOR
21. Connect the countershaft speed sensor and the vehi-
cle speed sensor (VSS) connectors.
VEHICI..E SPEED
SENSOR CONNECTOR
COUNTERSHAFTSPEED SENSORCONNECTOR
(cont'dl
14-185

Transmission
Installation {cont'd)
Connect the lock-up control solenoid connector. andinstall the transmission ground cable.
6 x '1.0 mm12 N.m {1.2 kgf.m, 8.7 lbl.ft}
LOCK.UP CONTROLSOLENOID CONNECTOR
Connect the staner cables on the staner motor. andinstall the cable holder.
NOTE; When installing the starter cable terminal.make sure that the crimped side of the ring terminalis facing out (see section 23).
6x1.0mm12 N.m 11.2 kg{.m.8.7 tbtftl
{0.9 kg'f.m, 7 lbf.ftl
TRANSMISSIONGROUND CABLE
b
14-186
STARTER CAELE
24. Installthe intake air duct.
D16Y7 engine:
Install the intake air duct and the resonaror.
D16Y8 engine:
lnstall the intake air duct and the air cleaner hous_ang assembly.
25. Refill the transmission with ATF (see page 14_1.18).
26. Connect the positive (+) cable first. then the nega-tive (-) cable to the battery.
27. Check the ignition timing (see section 23).
28. Start the engine. Set the parking brake, and shift thetransmission through all gears. three times. Checkthe shift cable adjustment (see page 14_190).
29, Check the front wheel alignment (see section 1g).
30. Let the engine reach operating temperature (thecooling fan comes on) with the transmission in Nor @ position, then turn it off and check the fluidlevel (see page 14- 7).
31. Road test as described on pages 14-113 thru ,14_116.

Shift Cable
Adjustment
@ Make sure lifts are ptaced properly (see
section 1).
1. Remove the front console (see section Z0l.
2. Shift to @ position. then remove the lock pin fromthe adiuster.
7 N.m (0.75 tbtftlkgtm.
14-190
3. Check that the hole in the adjuster is perfectlyaligned with the hole in the shift cable. There aretwo holes in the adjuster. They are positioned 90.apart to allow cable adjustment in 1/4 turn incre-ments.
ExactAlignment
4. lf the hole is not perfectly aligned, loosen the lock-nut on the adjuster and adjust as required.
5. Tighten the tocknut to 7 N.m (0.7 kgf.m, 5 tbf.ft).
6. Install the lock pin on the adjuster. lf you feel thelock pin binding as you reinstall it, the cable is stillout of adjustment and must be readjusted.
7. Make sure the lock pin is seated in the adjustersecuretv.
8. Move the shift lever to each gear, and verify that theshift position indicator follows the automatic trans-axle gear position switch.
9. Start the engine, and check the shift lever in allgears. lf any gear does not work properly, refer totroubleshooting (see page 14-109 thru 1'4-'112).
10. Insert the ignition key into the key cylinder on theAy'T gear position indicator panel, and verify that theshift lock lever is released.
CableToo ShortCableToo Long

Shift Lever
PUSH KNOB SPRING
SILICONE GREASE
SCBEWN.m {0.3 kgtm.2 lbf ft)
Apply non-hardening thread lock sealant
SCREW3 N.m {0.3 kgif m,2 lblft)
GEAR POSITION INDICATOR PANEL
COVER
SHIFT LEVER ASSEMBLY
SHIFT INDICATOR
BUSHING
-61SILICONE GREASELEVERSHIFT LOCK
SCREW3 N.m {0.3
g
6x1.0mm9.8 N.m {1.0 kgf.m,7.2 tbt.ft)
A/T GEAR POSITION
PLATE
SHIFT LEVER BRACKET BASE
SHIFT LEVER
2/""*"
,.@* _.\__r.\
-Rt \ooru.r.,
A/T GEAR POSITION SWITCH
6x1.0mm9.8 N.m 11.0 kgf.m.7.2lbf.ft)
BASE COLLAA
14-191

Continuously Variable Transmission (CVTI
Special Tools ................ 14-194
Description .................... 14-195
Clutches/Reverse Brake/Planetary
Gear/Pulleys .......... 14-198
power Flow ..............,..... 14-200
Electronic Control SYstem(,96 - 98 Modets) ......14-203
Electronic Control System
('99 - oo Models) " 14-205
Hydraulic Control '....... 14-208
Hydraulic Flow .'..-.....'... '14-212
Park Mechanism .....-...'.' 14-222
Eleqtrical Systom
Component Locations'96 - 98 Models """"""' 14-224,99 - 00 Modets ............. 14-225
TCM Circuit Diagram ('96 - 98 Models) ............. 14-226
TCM Terminal Voltage/Measuring Condiiions ('96 - 98 Models) '.... 14-228
PcM Circuit Oiaqram{A/T Control System: '99 - 00 Models} ...--.... 14-230
PCM Terminal Voltage/Measuring Conditions('99 - 00 Models)
A/4 Control System .'.'...14-232
Troubleshooting Procedures ... . .... .....',........."' '14-234
Symptom-to-ComPonent Chart
Electrical System - '96 - 98 Models ......'..... '14-234
Electrical System -'99 - 00 Models ..'....-..-. '11-210
Electrical Troubleshooting
Troubleshooting Flowcharts('96 - 98 Models) """'11-242
Troubleshooting Flowchart
('99 - 0O Modets) ...... 14-265
Linear Solenoids/lnhibitor Solenoid
Test ......................... . ...... 14-29f
Drive Pulley/Driven Pulley/Secondary Gear
Shaft Speed Sensors
Replacement .........'...... .14-292
Start Clutch Control
Start Clutch Calibration Procedure ....... ....,. 14-293
Hydraulic SYstem
Symptom-to-ComPonent Chart
Hydraulic System '.'.......14-294
Road Test ............................ 14-296
Stall Speed
Test......................... ...... 14-294
Fluid Level
Checking/Changing ....... 14-299
Pressure Testing ................. 14-300
Lower Valve BodY AssemblY
Replacement ..........,... 14-302
ATF Filter
Removal/lnstallation ..... 14-303
Transmission
Transmission
Removal ........... . 14-304
lllustrated Index
Transmission/Lower Valve BodY
Assembly ................. 14-308
Transmission Housing/Flywheel Housing ... 14-310
End Cover/f ntermediate Housing ..........'.'.... 14-312
Transmission Housing/Lower Valve Body Assembly
Removal ..........'.... .. " 14-314
Transmission Housing/Flywhesl Housing
Removal ................. ........ 1+316
End Cover/lntermediate Housing
14-318Removal .........,...............
Manual Valve Body
Disassembly/lnspection/Reassemblv .'.'.'..... 1 4-320
Forward Clutch
lltustrated Index ........................................ 14-321
Disassemblv .................. 14-322
Reassemblv , ,, . ',','......14-324
Secondary Gear Shaft
25 x 35 mm Thrust Shim Selection ..'.'....-... 14-324
Differential
lllustrated lndex ...,.....................,.,...-.-.-...'... 14-329
Backlash Inspection .-....14-329
Bearing Replacement ......'........'....'... ....'... 14-330
Differential Carrier Replacement ........'........ 14-330
Oil Seal Removal ........... 14-331
Oil Seal Installation/Side Clearance ....... . . 14-331
Flywheel Housing Input Shaft Oil Seal
Replacement .....,.... ...'.'.. 14-333
Transmission Housing Bearings
Driven Pulley Shaft Bearing
Replacenient ...................'. . ...................'.. 14-334
Secondary Gear Shaft Bearing
Reolacbment ...................... . .......... . ........ 14-335
Flywheel Housing Beating
Secondary Gear Shaft BearingReo1acement..................,........................... 14-335
Ring Gear Bearing
Replacement......... ........ 14-336
Control Shaft Assembly
Removal/lnstallation ....................'........... 14-336
Transmission
Reassembly .................. 14-338
Flywheel/Drive Plate .. . ...... . ...... ... . ....-.....'.'...14-341
Transmission
lnstalation ..................... 14-348
Cooler Flushing .'......... 14-352
shift cable
Removal/lnstallation....'........." """ 14-354
Adjustment .......'........ 14-355
Shift Lever ........................,. 14'356
Shift Indicator Panel
Adjustment ................ 14-357
ATF Cooler/Hoses
lnsta llation ......,,...... .... 14-357

Description
The Continuously Variable Transmission (CVT) is an electronically controlled automatic transmission with drive and driv
en Oullevs, and a steel belt. The CVT provides non stage speeds forward and one reverse. The entire unit is positioned in
line with the engine.
Transmission
Around the outside of the flywheel is a ring gear which meshes with the starter pinion when the engine is being staned.
The transmission has four parallel shafts: the input shaft, the drive pulley shaft. the driven pulley shaft, and the secondary
gear shaft. The input shaft is in line with the engine crankshaft. The drive pulley shaft and the driven pulley shaft consist of
movable and fixed face pulleys. Both pulleys are linked by the steel belt.
The input shaft includes the sun gear. The drive pulley shaft includes the forward clutch which mounts the carrier assem-
bly on the forward clutch drum. The carrier assembly includes the pinion gears which mesh with the sun gear and the ring
gear. The ring gear has a hub-mounted reverse brake disc.
The driven pulley shaft includes the start clutch and the secondary drive gear which is integral with the park gear' The sec-
ondary gear shaft is positioned between the secondary drive gear and the final driven gear. The secondary gear shaft
includes the secondary driven gear which serves to change the rotation direction. because the drive pulley shaft and the
driven oullev shaft rotate the same direction. When certain combinations of planetary gears in the transmission are
engaged by the clutches and the reverse brake, power is transmitted from the drive pulley shaft to the driven pulley shaft
to provide E, E, E, and El.
Electronic Control'96 - 98 Models:
The electronic control system consists of the Transmission Control Module (TCM), sensors, three linear solenoids, and a
inhibitor solenoid. Shifting is electronically controlled under all conditions'
The TCM is located below the dashboard, behind the kick panel on the driver's side.'99 - 00 Models:
The electronic control svstem consists of a Powertrain Control Module (PCM), sensors, three linear solenoids and an
inhibitor solenoid. Shifting is electronically controlled under all conditions. A Grade Logic Control System to control shift-
ing in E position while the vehicle is ascending or descending a slope.
The PCM is located below the dashboard, under the kick panel on the passenger's side.
Hydraulic Control
The lower valve body assembly includes the main valve body, the Pressure Low (PL) reguiator valve body, the shift valve
body, the start clutch control valve body, and the secondary valve body. They are positioned on the lower part of the
transmission housing.
The main valve body contains the Pressure High (PH) control valve, the lubrication valve, and the pitot regulator valve.
The secondary valve body contains the PH regulator valve, the clutch reducing valve, the start clutch valve accumulator,
and the shift inhibitor valve. The PL regulator valve body contains the PL regulator valve and the PH-PL control valve
which is ioined to the PH,PL control linear solenoid. The inhibitor solenoid valve is bolted on the PL regulator valve body.
The shift valve body contains the shift valve and the shift control valve. which is joined to the shift control linear solenoid.
The start clutch control valve body contains the start clutch control valve, which is joined to the start clutch control linear
solenoid. The linear solenoids and the inhibitor solenoid are controlled by the TCM or PCM. The manual valve body which
contains the manual valve and the reverse inhibitor valve, is bolted on the intermediate housing.
The ATF pump assembly is located on the transmission housing, and is linked with the input shaft by the sprockets and
the sprocket chain. The pulleys and the clutch receive fluid from their respective feed pipes, and the reverse brake receives
fluid from internal hydraulic circuit.
Shift Control Mechanism
Input from various sensors located throughout the vehicle determines which linear solenoid the TCM or PCM will activate.
Activating the shift control linear solenoid changes the shift control valve pressure, causing the shift valve to move. This
pressurizes the drive pulley pressure to the drive pulley and the driven pulley pressure to the driven pulley and changes
their effective pulley ratio. Activating the start clutch control linear solenoid moves the start clutch control valve. The start
clutch control valve uncovers the port, providing pressure to the start clutch to engage it(cont'd)
14-195
,!

Description
(cont'd)
Gear Sel€stion
The shift lever has six positions: @ pARK, E REVERSE, E NEUTRAL, E DR|VE, g SECOND, and El LOW.
Staning is possible only in E and E positions through the use of a slid6-type, neutrafsafety switch.
Automrtic Transaxle {A/T} Gear Position Indicltor
The A-lT gear position indicator in the instrument panel shows which gear has been selected without having to look downat the console.
PoshionDe3cription
E PARK
E REVEBSE
E NEUTRAL
D DRIVE
E SECOND
E LOW
Front wheels locked; park pawl engaged with the park gear on the driven pulley shaft. The startclutch and the forward clutch released.
Reverse; reverse brake engaged.
Neutral; the start clutch and the forward clutch released.
General driving; the transmission automatically adjusts to keep the engine at the best speed fordriving conditions.
For rapid accelsration at highway speeds; the transmission shifts into a lower range of ratios forbetter acceleration and increased engine braking.
For engine braking and power for climbinO; the transmission shifts into the lowest range of theralros.
l-
14-196

Description
Clutches/Reverse Brake/Planetary Gear/Pulleys
Clulches/Reverse Brake
The CVT uses the hydraulically-actuated clutches and brake to engage or disengage the transmission gears. When
hydraulic pressure is introduced into the clutch drum and the reverse brake piston cavity, the clutch piston and the reverse
brake piston move. This presses the friction djscs and the steel plates together, locking them so they don't slip. Power is
then transmitted through the engaged clutch pack to its hub-mounted gear. and through engaged ring gear to pinion
gears.
Likewise, when the hydraulic pressure is bled from the clutch pack and the reverse brake piston cavity, the piston releases
the friction discs and the steel plates, and they are free to slide past each. This allows the gear to spin independently on its
shaft, transmitting no power.
Start Clutch
The start clutch, which is located at the end of the driven pulley shaft, engages/disengages the secondary drive gear.
The start clutch is supplied hydraulic pressure by its ATF feed pipes within the driven pulley shaft.
Forward Clutch
The forward clutch, which is located at the end of the drive pulley shaft, engages/disengages the sun gear.
The forward clutch is supplied hydraulic pressure by its ATF feed pipe within the drive pulley shaft.
Reverse Brake
The reverse brake, which is located inside the inte.mediate housing around the ring gear, locks the ring gear in E posi-
tion. The reverse brake discs are mounted to the ring gear and the reverse brake plates are mounted to the intermediate
housing. The reverse brake is supplied hydraulic pressure by a circuit connected to the internal hydraulic circuit.
Planetary Gear
The planetary gear consists of a sun gear, a carrier assembly, and a ring gear. The sun gear is connected to the input shaft
with splines. The pinion gears are mounted to the carrier which is mounted to the fo.ward clutch drum. The sun gear
inputs the engine power via the input shaft to the planetary gear, and the carrier outputs the engine power. The ring gear
is only used for switching the rotation direction of the pullev shafts,
In E. E, and E positions (forward range), the pinion gears don't rotate and revolve with the sun gear, so the carrier
rotates. In E] positjon {reverse range), the reverse brake locks the ring gear and the sun gear drives the pinion gears to
rotate. The pinion gears rotate and revolve in the opposite direction from the rotation direction of the sun gear, and the
carrier rotates with pinion gear revolution.
Pulleys
Each pulley consists of a movable face and a fixed face, and the effective pulley .atio changes with engine speed. The
drive pulley and the driven pulley are linked by the steel belt.
To achieve a low pulley ratio, high hydraulic pressure works on the movable face of the driven pulley and reduces the
effective diameter of the drive pulley. and a lower hydraulic pressure works on the movable face of the drive pulley to
eliminate the steel belt slippage. To achieve a high pulley ratio, high hydraulic pressure works on the movable face of the
drive pulley and reduces the eifective diameter of the driven pulley, and a lower hydraulic pressure works on the movable
face of the driven pulley to eliminate the steel belt slippage.
b
14-198