1998 HONDA INTEGRA wheel

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Page 360 of 1681

HONDA INTEGRA 1998 4.G Workshop Manual lllustrated Index
NOTE:
a Whenever the transmission is removed, clean and grease the release bearing sliding surface
a lf the Darts marked with an asterisk (*) are removed, the clutch hydraulic syste

Page 366 of 1681

HONDA INTEGRA 1998 4.G Workshop Manual Flywheel, Flywheel Bearing
Inspection
t
,4
i
Replacement
1. Install the special tool.
MOUNTING BOLTS
Remove the flywheel mounting bolts in a crisscrosspattern in several steps as shown, then.emove th

Page 367 of 1681

HONDA INTEGRA 1998 4.G Workshop Manual Clutch Disc,
Flywheel, Flywheel BearingPressure Plate
Replacement (contd)Installation
1. Install the ring gear holder.
CLUTCH DISC
1tti
CLUTCH ALIGNMENT SHAFT07NAF-PR30100HANDLE07936 -3710100
Apply g

Page 416 of 1681

HONDA INTEGRA 1998 4.G Workshop Manual Transmission Assembly
Installation (contd)
Install the lower radiator hose clamp on the trans-
mission hanger B.
Connect the transmission ground wire and the
back-up light switch connector.
LOWER RAD

Page 420 of 1681

$HONDA INTEGRA 1998 4.G Workshop Manual Description \J t{ { 14-3 The automatic transmission is a combination of a 3-element torque converter and triple-shalt electronically controlled automatic transmission which provides 4 speeds forward a$

Description
\J
t{
{
14-3
The automatic transmission is a combination of a 3-element torque converter and triple-shalt electronically controlled
automatic transmission which provides 4 speeds forward and 1 speed reverse. The entire unit is positioned in line with
the engrne.
Torque Converter, Gears, and Clutches
The torque converter consists of a pump, turbine, and stator, assembled in sigle unit. The torque converter is connected to
the engine crankshaft so they turn torether as a unit as the engine turns. Around the outside of the torque convener is a
ring gear which meshes with the starter pinion when the engine is being started. The entire torque converter assembly
serves as a flywheel while transmitting power to the transmission mainshaft.
The transmission has three parallel shafts; the mainshaft. the countershaft, and the sub shaft. The mainshaft is in-line with
the engine crankshaft.
The mainshaft includes the 1st, and 2ndl4th clutches,and gear for 3rd, 2nd, 4th, reverse, and 1st. (3rd gear is integral with
the mainshaft, while reverse gear is integral with the 4th gear.)
The countershaft includes the 3rd clutch and gears for 3rd,2nd, 4th, reverse, 1st, and parking. Reverse and 4th gears can
be loched to the countershaft at its center,providing 4th gear or reverse, depending on which way the selector is moved.
The sub-shaft includes the 1st-hold clutch and gears fo 1st and 4th.
The gears on the mainshaft are in constant mesh with those on the countersahft and sub-shaft.When certain combinations
of gears in the transmission are engaged by clutches. power in transmitted from the mainshaft to the countershaft via the
sub-shaft to orovude oil, lo'1. E, E. and E.
Electronic Control
The electronic control svstem consists of the Transmission Control Module (TCM), sensors, and four solenoid valves.
Shilting and lock-up are electronically controlled for comfortable driving under all conditions.
The TCM is located below the dashboard, behind the lelt side kick panel on the driver's side.
Hydraulic Control
The valve bodies include the main valve body, the secondary valve body, the regulator valve body, the serbvo body, and
the lock-up valve body, through the respective separator plates, They are bolted to the torque converter housing,
The main valve body contains the manual valve, the 1-2 shift valve, the 2-3 shitt valve, the Clutch Pressure Control
lCPC) valve, the 4th exhaust valve, the reliel valve, and the ATF pump gears.
The secondary valve body contains the 4-3 kick-down valve, the 3-2 kick-down valve, the 2-3 orifice control valve, the
3-4 shift valve, the orilice control valve, the modulator valve, and the servo control valve.
The regulator valve body contains the pressure regulator valve, the lock-up control valve, the torque converter check
valve, and the cooler check valve.
The servo body contains the servo valve, which is integrated with shift fork shaft, the throttle valve B, and the accumula-
tors.
The lock-up valve body contains the lock-up shift valve and the lock-up timing B valve, and is bolted to the regulator valve
ooqy.
Fluid from the regulator passes through the manual valve to the various control valves.
Shift Control Mechanism
Input to the TCM from various sensors located throughout the car determines which shift control solenoid valve should
be activated. Activating a shitt control solenoid valve changes modulator pressure, causing a shift valve to move. This
pressurizes a line to one ol the clutches, engaging that clutch and its corresponding gear.
Lock-uD Mechanism
In @ position, in 2nd, 3rd and 4th, and @ position in 3rd, pressurized fluid can be drained lrom the back oI the tor-
que converter through a fluid passage, causing the lock-up piston to be held against the torque converter cover. As this
takes place, the mainshaft rotates at the same speed as the engine crankshaft. Together with hydraulic control, the TCM
optimizes the timing of the lock-up mechanism.
The lock-up valves controlthe range of lock-up according to lock-up control solenoid valves A and B, and throttle valve B.
When lock-up control solenoid valves A and B activate, modulator pressure changes. Lock-up control solenoid valves
A and B are mounted on the torque converter housing, and are controlled by the TCM.
(cont'd)

Page 421 of 1681

HONDA INTEGRA 1998 4.G Workshop Manual Description
{contd)
Gsar Selection
The shift lever has seven positions; @ PARK, E REVERSE, N NEUTRAL. [Dt l st through 4th ranges, @ 1st through
3rd ranges, @ 2nd gear and [ 1sr gear.
Starting is pos

Page 423 of 1681

HONDA INTEGRA 1998 4.G Workshop Manual Description
Clutches
t
{
The four-speed automatic transmission uses hydraulically-actuated clutches to engage or disengage the transmission gears.
When hydraulic pressure is introduced into the clutch

Description
Clutches
t
{
The four-speed automatic transmission uses hydraulically-actuated clutches to engage or disengage the transmission gears.
When hydraulic pressure is introduced into the clutch drum. the clutch piston is applied. This presses the friction discs
and steel plates together, locking them so they don't slip. Power is then transmitted through the engaged clutch pack
to its hub-mounted gear.
Likewise, when hydraulic pressure is bled from the clutch pack, the piston releases the friction discs and steel plates,
and they are free to slide past each other while disengaged. This allows the gear to spin independently on its shaft, trans-
mrrrng no power.
lsr Clutch
The 1 st clutch engages/disengages 1st gear, and is located at the end of the msinshaft, just behind the right side cover.
The 1st clutch is supplied hydraulic pressure by its ATF feed pipe within the mainshaft.
l st-hold clurch
The '1 st-hold clutch engages/disengages 'lst-hold or E] position, and is located at the middle of the sub-shaft. The 1st-
hold clutch is supplied hydraulic pressure by its ATF feed pipe within the sub-shaft.
2nd Clutch
The 2nd clutch engages/disengages 2nd gear, and is located at the middle of the mainshaft. The 2nd clutch is joined
back-to-back to the 4th clutch. The 2nd clutch is supplied hydraulic pressure through the mainshaft by a circuit connected
to the internal hydraulic circuit.
3rd ClutchThe 3rd clutch engages/disengages 3rd gear, and is located at the end of the counte.shaft, opposite the right side cover.
The 3rd clutch is supplied hydraulic pressure by its ATF feed pipe within the countershaft.
4th Clutch
The 4th clutch engages/disengages 4th gear, as well as reverse gear, and is located at the middle of the mainshaft.
The 4th clutch is joined back-to-back to the 2nd clutch. The 4th clutch is supplied hydraulic pressure by its ATF feed
oiDe within the mainshaft.
One-way Clutch
The one-way clutch is positioned between the parking gear and the countershaft 1st gear. with the parking gear splined
to the countershalt. The countershaft 1st gear provides the outer race, and the parking gear provides the inner race sur-
face. The one-way clutch locks up when power is transmitted from the msinshaft 1st gear to the countershaft I st gear.
The 1st clutch and gears remain engaged in the 1st, 2nd. 3rd, and 4th gear ranges in the Lqd, Lq9.l or La position.
However, the one-way clutch disengages when the 2nd, 3rd, or 4th clutches/gears are applied in the E, lDll o, Eposition. This is because the increased rotational speed of the gears on the countershatt over-ride the locking "speed
range" ot the one-way clutch. Thereatter, the one-way clutch free-wheels with the lst clutch still engaged.
COUiITERSHAFT lST GEAR
FREE
-".--)
LOCKS
F
LOCKS FREE
PARKING GEAR
NOTE:View from right side cover side.
14-6

Page 428 of 1681

$HONDA INTEGRA 1998 4.G Workshop Manual \E Position Deceleration The power flow when decelerating is as follows; 1. Rolling resistance from the road surface goes through the front wheels to the final drive gear, then to the sub-shaftlst ge$

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