1994 HONDA INTEGRA Engine oil

- Transmission Oil
NOTE: Check the oil with the engine OFF, and the car on
level ground.
1. Remove the oil filler plug, then check the level and
Maintenance
condition of the oil.
OIL FILLER PLUG44 N.m lia.5 kgf.m,
ORAIN PLUG$ N.m 14.0 kgf.m.29 lbf.fr)
33 tbtftlProper Level
2. The oil level must be up to the filler hole. lf it is
below the hole. add oil until it runs out, then rein-
stall rhe oil filler plug.
3. lf the transmission oil is dirty, remove the drain
plug and drain the oil.
4. Reinstall the drain plug with a new washer, and
refillthe transmission oil to the proper level.
NOTE: The drain plug washer should be replaced at
every oil change.
5 Reinstall the oil filler plug with a new washer.
OilCapacity
2.2 ( ''2.3 US.qt,1.9 lmp.qt) at oil chang€.
2-3 I l2.1Us.ql,2.0lmp.qtl at oyerhaul.
Use only SAE 10 w - 30 or '10 W - 40, API Service
SF or SG grade.
OIL FILLER PLUGa4 N.m l{.5 kgf.m, 33 lbf.ftl
Back-up Light Switch
Replacement
NOTE: To check the back-up light switch,
1. Disconnect the connector, then rem(
light switch connector trom the conn
2. Remove the back-up light switch.
BACX-UP LIGHT SWITCH25 N.m 12.5 kg[.m, 18 lbf.ftl
lnstall the new washer and the back-
Check the transmission oil level (see
Replace.
/itch, see section 23.
remove the back-up
]onnector clamp.
-up light switch.
) page 13-3).
Replace.
13-3

12 N.m (1.2 kgim,9 lbnft)
15 N.m (1.5 kgnm, 11 lbf.ft)
15 N.m (1.5 kgf.m, 11 lbf.ft)
24 N.m (2.4 kgf.m, 17 lbf'ft)
27 N.m (2.8 kgnm,20 lbnft)
30 N.m (3.1 kgf.m, 22 lbf'ft)
Bolt Size
,l
{
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61@
B
c
D
E
F
6x1.0mm
6x1.0mm
I x 1.0 mm
8 x 1.25 mm
8 x 1.25 mm
8 x 1.0 mm
i) BALL BEARINGe sroPPER R|NG9 TAPER RINGA NEEDLE EEARINGO SPACER.d SYNCHRO RINGt sYNcHRo SPR|NG!) 5TH/REVEFSE sYNcHRo SLEEVEO 5TH/REVERSE SYNCHRO HUB[0 sYrucxao nlrucii i) 5TH GEARO 38 x 43 x 26 mm NEEDLE BEARINGt3 SPACEE COLLARO 4TH GEAR.iB SYNCHRO FING.Ii9 SYNCHRO SPRING{, 3RD/,ITH SYNCHRO HUB
@ 3RD/4TH SYNCHBO SLEEVEt9 3RD GEARO MAINSHAFTO wasHER@) SPRING WASHER40 BALL BEARINGO 28 x 41 x ? mm OIL SEAL Replace.ad 35 x 56 x 8 mm OIL SEAL Replace.a0 14 x 20 mm OOWEL PIN@ OIL CHAMBER PLATE'A BEVERSE IDLEN GEAR SHAFT@ wasHER t-2).A REVERSE IDLER GEAFO REVERSE CHANGE HOLDER3A sTH/REVERSE SHIFT PIECEO 1ST/2ND SHIFT FORK04 3RD/.TH sHlFr FoRK@ 5TH/REVERSE SHIFT FORKO9' OIL GUTTER PLATE6' SNAP RING@ 72 mm THRUST SHIM) OIL GUIOE PLATEi!0 10 mm WASHER Replace..4i] REVERSE IDLER GEAR SHAFT BOLT54 N.m {5.5 kgt m, 40lblftl) TRANSMISSION HANGER B(3 BREATHER CAP@ TRANSMISSION HANGER A63 BACK.UP LIGHT SWITCH25 N.m (2.5 ksf.m, 18lbfftl@r 14 mrn waSHER Replace.67 16 mm SEALING BOLT29 N.m (3.0 kgl.m, 22 lbf ft)@ 32 mm SEALING BOLT25 N.m (2.5 kgf.m. 18lbt'ft|@ 40 x 62 x 9 mm OIL SEAL Replace.D STEEL BALL D. 5/16 inGl SPRING L. 30 mm {1.2 in}
@ 12 mm WASHER Replace.63) SET SCREW22 N.m 12.2 kgl.m, 16 lbt'ft,@ OIL ORAIN PLUG39 N.m {4.0 kgt.m, 29 lbf'ftl€9 WASHER Replace.@ oIL FILLER PLUG4,1N.m 14.5 kgJ m, 33 lblftl
*1:81881 engine*2:B18Cl engine
WASHER Beplace.TRANSMISSION HOUSING80 mm SHIM (*1)79.5 mm SHIM {*21THRUST SHIM {*2IT. 2.0 mm (0.079 in)BEARING OUTER RACE {*2}SHIFT PIECE SHAFTINTERLOCKSHIFT PIECESHIFT ARM HOLDERSELECT ARMSELECT RETURN SPRING10 mm SHIM10 mm WASHERLOCK COLLAR3 x 16 mm SPRING PIN Replace.8 mm SPRING WASHERCHANGE PIECESET SCREW22 N.m {2.2 kgf.m, 16 lbf.ft}SPRING L.25.6 mm {1.01 inlSTEEL BALL D. 5/16 inMAGNETCLUTCH HOUSING14 x 25 x 16 mm OIL SEAL Replace.SHIFT RODDIFFERENTIAL ASSEMBLYSee section 15BEARING OUTER RACE I*2ITHRUST SHIM I*2)T. 2.5 mm (0.098 in,SHIFT ROD BOOTOIL GUID€ PLATE33 x 60 x 20 mm NEEDLE BEARINGBEARING RETAINER PLATELOCK WASHER Replace.COUNTERSHAFTTHRUST SHIM37 x 42 x 25 mm NEEDLE BEARINGlST GEARFRICTION DAMPERSYNCHRO RINGSYNCHRO SPRINGlST/2ND SYNCHRO HUBREVERSE GEARDOUBLE CONE SYNCHRO I*2ISYNCHRO BING I*1)FRICTION DAMPERSPACER42 x 6? x 24 mm NEEDLE BEARING2ND GEAR3RD GEAR4TH GEAS5TH GEARNEEDLE BEARINGBALL BEARINGSPRING WASHERLOCKNUT Replace.108 - 0- 108 N.m(11.0 - 0* 11.0 kgt m,80- 0- 80lbf.ft)5 x 22 mm SPRING PIN Replace.00
13-9

The Automatic Transmission is a combination of a 3-e,ement torque convefter and triple-shaft electfonically controlled
automatic transmission which provides 4 speeds forward and 1 speed reverse. The entire unit is positioned in line with
the engine.
Torque Converter, Gears and Clutches
The torque converter consists of a pump, turbine and stator assembly in a single unit, The torque converter is connected
to the engine crankshaft so they turn together as a unit as the engine turns. Around the outside of the torque converter
is a ring gear which meshes with the starter pinion when the engine is being staned. The entire torque converter assem-
bly serves as a flywheel while transmitting power to the transmission mainshaft.
The transmission has three parallel shafts, the mainshaft. countershaft and sub-shaft. The mainshatt is in line with the
engine crankshaft.
The mainshaft includes the clutches for 1 st, and 2ndl4th, and gears for 3rd. 2nd, 4th, reverse and l st (3rd gear is in-
tegral with the mainshaft, while reverse gear is integral with the 4th gear).
The countershaft includes the 3rd clutch and gears Ior 3rd, 2nd,4th, reverse, lst and parking. Reverse and 4th gears
can be locked to the countershaft at its center, providing 4th gear or reverse, depending on which way the selector is moved.
The sub-shaft includes the lst-hold clutch and gears for 1st and 4th
The gears on the mainshait are in constant mesh with those on the countershaft and sub-shaft. When certain combina-
tions of gears in the transmission are engaged by the clutches, power is transmitted from the mainshaft to the counter-
shaft via the sub-shatt to provide @, E, tr. tr and @ position.
Electronic Control
The electronic control system consists of the Transmission Control Module {TCM), sensors, and 4 solenoid valves. Shift-
ing and lock-up are electronically controlled for comfortable driving under all conditions.
The TCM is located below the dashboard, behind the left side kick panel on the driver's side.
Hydraulic Control
The valve bodies include the main valve body, secondary valve body, regulator valve body. servo body, and lock-up valve
body throuqh the respective separator plates.
They are bolted on the torque converter housing.
The main valve body contains the manual valve, 1-2 shift valve, 2-3 shift valve, Clutch Pressure Cont.ol (CPC) valve,
4th exhaust valve, relief valve, and oil pump gears.
The secondary valve body contains the 4-3 kick-down valve,3-2 kick-down valve,2-3 orifice cont.ol valve, 3-4 shitt
valve, orifice control valve. modulator valve, and servo control valve
The regulator valve body contains the pressure regulator valve. lock-up control valve, torque converter check valve, and
cooler check valve.
The servo bodv contains the servo valve which is integrated with the reverse shift fork, throttle valve B, and accumulators.
The lock-ug valve bodv contains the lock-up shift valve and lock-up timing B valve. and is bolted on the secondary valve
body.
Fluid from the regulator passes through the manual valve to the various control valves.
Shitt Control Mochanism
Input to the TCM i.om various sensors located throughout the car determines which shift control solenoid valve should
be activated.
Activating a shift control solenoid valve changes modulator pressure, causing a shift valve to move. This pressurizes
a line to one of the clutches. engaging that clutch and its corresponding gear.
Lock-up Mechanism
In @ position. in 2nd, 3rd and 4th, and E position in 3rd, pressurized tluid can be drained from the back of the tor-
que converter through an oil passage, causing the lock-up piston to be held against the torque converter cover. As this
takes Dlace, the mainshaft rotates at the same speed as the engine crankshatt. Together with hydraulic control, the TCM
optimizes the timing ol the lock-up mechanism.
The lock-up valves control the 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)
14-3

Hydraulic Control
The valve bodies include the main valve body, secondary valve body, regulator valve body, servo body and lock-up valve
body.
The oil pump is driven by splines behind the torque converter which is attached to the engine. Oil flows th.ough the
regulator valve to maintain specified pressure through the main valve body to the manual valve, directing pressure to
each of the clutches,
SHIFT CONTROL SOLEIIOIDVALVE ASSEMBLY
RTGHT SIDE COVER
LOCK.UP VALVE BODY
VALVE BODY
REGULATOR VBODY
SOLENOID VALVEASSEMBLY
4<.__i: )o.-
OIL PUMP GEARS
14-23

Rcgulator Valve
The r€gulator valve maintains a constant hydraulic pressure from the oil pump to the hydraulic control system, whil€
alEo furnishing oil to the lubricating system and torque convener.
Oil flows through B and B'. The oil which enters through B flows thfough the valve orifice to A, pushing the regulator
valve to the right. Acco.ding to the level of hydraulic pressure through B, the position of the valve changes, and the
amount of the oil thlough D from B'thus changes. This operation is continued. thus maintaining the line pressure.
IEI{GINE ]IIOT RUNNINGI{ENGINE RUNNING)
Siator Reaction Hydtaulic Pressure Control
Hydraulic pressure increase, according to torque, is performed by the regulator vslve using stator torque reaction. Thestator shaft is splined to the stator and its a.m end contacts the fegulator spring cap. When the car is accelerating orclimbing (Torque Convener Range). stator torque reaction acts on the stator shalt and the stator shaft arm pushes thersgulator spring cap in this - direction in proportion to the reaction. The spring compresses and the regulator valve movesto increase the regulated control pressure or line pressure. Line pressure is maximum when the stator reaction is maximum.
TOR VALVE
(cont'd)
From OIL PUMP
STATOR SHAFTSTATOR SHAFT ARM
14-25

E Position
As the engine turns, the oil pump also starts to operate. Automatic transmission fluid (ATF) is drawn from (99) and dis-
charged into (1 ). Then, ATF pressure is controlled by the regulator valve and becomes line pressure ( 1 ). The torque con-
verter inlet pressure (92) enters (94) of torque converter through the orifice and discharges into {90}.
The torque converter check valve prevents the torque converter pressure from rising'
Under this condition, the hydraulic pressure is not applied to the clutches.
NOTE:. When used, "left" or "right" indicates direction on the llowchart
. SOL-@: Shift Control Solenoid Valve A
' SOL{D:Shift Control Solenoid Valve B
. SOL@: Lock-up Control Solenoid Valve A
. SOL-@: Lock-up Control Solenoid Valve B
(cont'd)
14-29

Description
Lock-up System
Lock-up Clutch
1. Operation (clutch on)
With the lock-up clutch on, the oil in the chamber between the torque convener cover and lock-up piston is discharged,and the converter oil exerts pressure through the piston against the converter cover. As a result, the converter turbineis locked on the converter cover firmly. The etfect is to bypass the converter, thereby placing the car in direct drive.
tpowefJlo-wl
The power tlows by way of:
Engine
I
Drive plate
I
Torque convener cover
I
Lock-up piston
I
Damper spring
I
Turbine
t
Mainshaft
TOROUE CONVERTERCOVER
LOCK-UP
TURBINE
To oil cooler
2. Operation (clutch off)
With the lock-up clutch off, the oil tlows in the reverse of CLUTCH ON. As a result, the lock-up piston is moved away
from the converter cover; that is, the torque converter lock-up is released.
Fowtttowl
Engine
I
Drive plate
I
Torque converter cover
Pump
I
Turbine
I
Mainshaft
OUTLET
t
,\
TURBINE
14-38

In E position in 2nd, 3rd and 4th, and @ position in 3rd, pressurized fluid is drained from the back of the torque con-
verter through an oil 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 op-
timized the timing ot the lock-up system. Under certain conditions, the lock-up clutch is applied during deceleration, in
3rd and 4th sDeed.
The lock-up system controls the 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.
NOTE:
When used, "left" or " tight" indicates direction on the tlowchart.
LOCK IJP COIITBOL
Solenoid valve
L""f."p "."aiti""\B
Lock-up OFFOFFOFF
Lock-up, slightONOFF
Lock-up, halfONON
Lock-up. fullONON
Lock-up
during decelerationONDuty operation
OFF -ON
LOCI( UP TIMII{G B VAIVE
{cont'd)
ott coot€R
14-39