cks HONDA INTEGRA 1994 4.G Owner's Guide

Description
Clutches
The four speed automatic transmission uses hydraulically actuated clutches to engage or disengage the transmission gears.
When clutch pressure is introduced into the clutch drum, the clutch piston is applied. This presses the iriction discs and
steel plates together, locking them so they don't slip. Power is then transmitted through the engaged clutch pack tojts hub-mounted gear.
Likewise, when clutch pressure is bled from the clutch pack. the piston releases the friction discs and steel plates, and
they are {ree to slide past each other while disengaged. This allows the gear to spin independently on its shaft, transmit-
ting no power.
1st ClutchThe l st clutch engages/disengages 1st gear, and is located at the end of the mainshaft, just behind the right side cover.
The 1st clutch is supplied clutch pressure by its oil feed pipe within the mainshaft.
1st-hold clutchThe 1st-hold clutch engages/disengages 1st-hold or I Fosition, and is located at the center ol the sub-shaft. The 1st-
hold clutch is supplied clulch pressure by its oil feed pipe within the sub-shait.
2nd ClutchThe 2nd clutch engages/disengages 2nd gear, and is located at the center of the mainshaft. The 2nd clutch is joined
back-to-back to the 4th clutch. The 2nd clutch is supplied clutch pressure through the mainshaft by a circuit connected
to the regulator valve body.
3rd Clutch
The 3rd clutch engages/disengages 3rd gea.. and is located at the end oJ the countershaft, opposite the right side cover.
The 3rd clutch is supplied clutch pressure by its oil feed pipe within the countershaft,
4th clurch
The 4th clutch engages/disengages 4th gear. as well as reverse gear, and is located at the center of the mainshaft.
The 4th clutch is joined back-to-back to the 2nd clutch. The 4th clutch is supplied clutch pressure by its oil feed pipe
within the mainshalt.
One-way Clutch
The one-way clutch is posjtioned between the parking gear and 1st gear. with the parking gear splined to the counter-
shaft. The 1st gear provides the outer race, and the parking gear provides the inner race surface. The one-way clutch
locks up when power is transmitted from the mainshaft 1st gear to the countershaft lst ggel _The 1st clutch and gears remain engaged in the 1st. 2nd. 3rd, and 4th gear ranges in the @, E or E position.
However, the one-way clutch disengages when the 2nd. 3rd, or 4th clutches/gears are applied in the E, lD.l o, Eoosttton.
This is because the increased rotational speed of the gears on the countershaft over-ride the locking "speed range" of
the one-way clutch. Thereafter, the one-way clutch free-wheels with the lst clutch still engaged.
COUNTERSHAFT 1ST GEAR
FREE
:>
LOCKS
aF
NOTE:View trom right side cover side.
14-6

S. d.gno.b lql indic.to. lightbllnkr tour tlm...
R.lor to Soctlon 23 for vohiclerpood lonsoi {vSSl to!t.
Shift t.nsmisiion to A position.
Ch6ck to. shoft or opon in OFilwlro b€twoen tho .)9 t6tminsl andrho VSS. lf wiro is OK, ch€ck thoVSS lsoo soction 231.
Doss lhe voltage O V and ap-p.ox. 10 V appe.r alternately?
Ch.d( tor loo.. TCM co.!n.cto.r.ll nacaaalay, lubrtituta ! known_geod TCM and t chock.
Possible Caus6
. Disconnectsd vehicle speedsensor {VSS} connector. Short or open in VSS wire. Faulty VSS
Disconn6ct the 26Pand 22P con-n.ctors trom th€ TCM.Connect ths Tgst Harnoas "A"
8nd "O" connectors to tho wireharnsss only, not to the TCM (see
page 1+49).
Turn the ignilion switch ON.
a Mak€ sure lifts,lacks, and safety stands aro placod plopor-
ly {see Eaclion 1}.
a S6t th6 parking brake eecurely and block tho tear wh6ol3'
a Jack up tho f.ont ot tho car and rupport whh sstoty standa.
(cont'd)
Rotat€ th€ tront wh6ol and chsckfo. volt6g€ botwean the D9 andA25 o. A26 terminals. Block theother whaol 30 it do€s not turn.
14-57

Symptom-to-Component Ghart
Hydraulic System (cont'd)
The following symptoms can be caused
by improper repair or assemblv
Check these items on the
PROBABLE CAUSE DUE TO
IMPROPER REPAIR List
Items on the
NOTES List
Car creeps in E position.R1, R2
Car does not move in @ or @ position.R4
Transmission locks up in @ position.R3, Rl2
Excessive drag in transmission.R6K.R
Excessive vibration, rom related.R7
Noise with wheels moving onlyR5
Main seal pops out.R8
Various shifting problems.R9, R1O
Harsh upshifts.R11
PROBABLE CAUSE DUE TO IMPROPER REPAIR
R1lmproper clutch cleatance.
R2.lmDroDer qear clearance.
Parking brake lever installed upside down.
One-way (spragl clutch installed upside down,
Reverse selector hub installed upside down.
Oil oumo bindind
Torque converter not fully seated in oil pump.
Main seal improperly installed.
Springs improperly installed,
Valves improperly installed.
Ball check valves not installed.
Shitt fork bolt not installed.
R3.
R4.
R5.
R6.
R7.
R8.
R9.
R10.
R11
R12.
14-88

NOTES
A.See flushing procedure, page l4-168 and 169.
B.Set idle rpm in gear to specitied idle speed. lf still no good, adiust motor mounts as outlined in engine
section of service manual.
lf the large clutch piston O-ring is broken, inspect the piston groove for rough machining.
lf the clutch pack is seized or is excessively worn, inspect the other clutches Jor wear, and check the
orifice control valves and throttle valves for free movement.
E.It throttle valve B is stuck, inspect the clutches for wear.
lf the 1-2 shift valve is stuck closed, the transmission will not upshift. lI stuck open, the transmission
has no lst gear.
H.lf the 2-3 orifice control valve is stuck, inspect the 2nd and 3rd clutch packs for wear.
ll the orifice cont.ol valve is stuck, inspect the 3rd and 4th clutch packs for wear.
lf the clutch Dressure control valve is stuck closed, the transmission will not shilt out of 1st gear.
K.improper alignment or main valve body and torque converter housing may cause oil pump seizure. The
symptoms ale mostly an rpm-related ticking noise or a high-pitched squeak.
L.ll the ATF strainer is ctogged with panicles of steel or aluminum, inspect the oil pump and ditferential
pinion shaft. lt both are OK and no cause lor the contamination is found, replace the torque converter.
M.lf the 1st clutch feedpipe guide in the right side cover is scored by the mainshaft, inspect the ball bear-
ing for excessive movement in the transmission housing. lf OK. replace the right side cover as it is dent-
ed. The O-ring under the guide is probably worn.
N.ReDlace the mainshstt if the bushing for the 4th feedpipe is loose or damaged.
It the 4th feedpipe is damaged or out ot tound, replace the right side cover'
Replace the subjshaft it thtbushing for the 1st-hold Jeedpipe is loose or damaged.
lf the 1st-hold feedpipe is damaged or out of round, replace it.
Replace the mainshaft if the bushing lor the 1st feedpipe is loose or damaged.
lf the lst feedpipe is damaged or out ot round, replace it.
o.A *o- r, da."s"d "p-g clutch is mostly a result of shifting the transmission in El or Lq! position
while the wheels rotate in reverse, such as rocking the car in snow.
P.InsDect the frame for collision damage.
o.Inspect for damage or wear:
1. Reverse selector gear teeth chamfers.
2. Engagement teeth chamters of countershaft 4th and reverse gear.
3. Shift fork for scutt marks in center.
4. Differential Dinion shaJt for wear under pinion gears.
5. Bottom of 3rd clutch for switl marks.
Replace items 1 , 2, 3 and 4 it worn or damaged. lf transmission makes clicking, grinding or.whirring
noise, atso replace mainshaft 4th gear and reverse idler gear and countershaft 4th gear in addition to
1,2,3ot4.lf ditiersntial Dinion shaft is worn, overhaul differential assembly, and replace ATF strainel, and thoroughly
clean transmission, tlush torque convertet, cooler and lines.
lf bottom of 3rd clutch is swirled and transmission makes gear noise, replace the countershaft and tinal
driven gear.
R.Be wry careful not to dsmage the torque converter housing when replacing the main ballbearing. You
may al;o damage the oil pump when you torque down the main valve body. This will result in oil pump
seizure it not detected. Use proper tools.
qInstall the main seal tlush with the torque converter housing, lf you push it into the torque converter
housing until it bottoms out. it will block the oil return passage and result in damage.
T,Harsh do\/vnshiJt"\./l,'hen coasting to a stop with zero th.ottle may be caused by a bent-in throttle valve
retainer/cam stopper. Throttle cable adjustment may clear this problem.
ifuitle cable adjustment is essential for proper operation of the transmission. Not only does it affect
the shift points if misad,usted, but also the shift quality and lock-up clutch operation'
A cable adjusted too long will result in throttle pressure being too low for the amount of engine torque
input into ihe trsnsmission and may cause clutch slippage. A cable adjusted too short will result in too
hi;h throttle pressure which may cause harsh shitts, erratic shrfts and torque con
14-89

Pressure Testing
a While testing, be caretul of the rotating flont wheels.a Make aura litts, jacks, and sat€ty stands alo placedplop6rly {see section 1}.
CAUTION: Betore t€sting, be sure the transmission fluidis tilled to rh6 ploper l€vet.
1. Raise the car (see section i),
2. Warm up the engine {the cooling fan comes onl, thenstop the engine and connect a tachometer.
3. Connect the oil pressure gauge to each inspectionholels).
TOROUE: 18 N.m (1.8 kgf.m, 13 tbf.fr)
CAUTION: Connect ths oil prsssure gauge s€cur€_ly; be sule not to allow dust and other foleign pani_cl6s to 6nt€1 th€ inspection holo.
A/T OIL PRESSURE GAUGESET WPANEL07406-002oi+oo
A/T LOW PRESSUREGAUGE W/PANEL07/rO6-0O70300
A/T OIL PRESSURE HOSE,22'10 mmOTMAJ_PY4OI TA{4 Roquirod)
A/T OIL PRESSUBE HOSEADAPTEROTMAJ - PY/+O12014 Roqui.odl
NOTE: Use the A/T Oil Pressure Gauge Set (07406_O02OOO3) or A/T Low Pressure Gauge (07406-OOTO0OO). and the oil pressure gauge hoses and adap_ters shown above.
14-94
4. Start the engine, and measure the respective pres-
sure as follows.
a Line Pressure
a Clutch Pfessure
a Clutch Low/High Pressure
a Throttle B Pressure
5. Install a new washer and the sealing bolt in the in-spection hole and tighten to the specified torque.
TOROUE: 18 N'm {1.8 kgf.m, 13 tbf.ft)
NOTE: Do not reuse old aluminum washers.
a Line Pressure M€asurement
- 1 . Set the parking brake and block both rear wheelssecurely.
-2. Run the engine at 2,OOO rpm
-3. Shift the selecr lever to S or @ position.
-4. Measure line pressure.
LINE PRESSUREINSPECTION HOLE
NoTE: Higher pressures may be indicated it measurements are made in selector positions other than @ or @ position.
PRESSURESELECTOR
POStTTONSYMPTOMPROBABLE CAUSEFLUID PRESSURE
StandardService Limit
LineNo'ENo (or low)
lrne pressureTorque converter,
orl pump, pressure
regulator, to.que
convener check
valve
83O-88O kPa(8.5-9.O kgf/cm,,
120- I 30 psi)
78O kPa
{8.0 kgl/cm,, 1lO psi}

Transmission
Removal
4.Bemove the t.ansmission ground cable from the
transmission hanger.
Disconnect the lock-uD control solenoid valve con-
nector and the shitt control solenoid valve connec-
tor, then remove the harness clamp on the lock-up
control solenoid harness from the harness stav.
a Make sur€ lifts. iacks and safety stands are placad
properly, and hoist brackots are attachod to tho cor-
rect position on ths sngine {seo sectionl }.o Apply parking brake and block rear wheels, so car will
not roll off stands and fall on you whil6 working un-
del it
CAUTION: Use tender covers to avoid damsging paint-
ed surlaces,
1 . Disconnect the battery negative { - } and positive ( + )
cables from the battery.
2. Remove the intake air duct and air cleaner housino
assembly.
HARNESS CLAMP
LOCK-UP CONTROLSOLENOID VALVECONNECTOR
AIR CLEAI{ERHOUSING ASSEMBLY
SHIFT CONTROLSOLENOID VALVECONNECTORTRANSMISSIONGROUND CABI-E
Disconnect the vehicle speed sensor (VSS), main-
shaft sDeed sensor and countershaft speed sensor
connectors.
3.Remove the starter motor cables and cable holder
from the starter motor.VEHICLE SPEEDSENSOR CONNECTOR
STARTER MOTOR CABLECABLE HOLDER
VEHICLE SPEEDSENSOR
COUNTERSHAFTSPEED SENSORCONNECTOR
MAINSHAFT SPEEDSENSORCONNECTOR (cont,d)
STARTER MOTOR?/\
STARTER MOTOR CABLE
4-99

Transmission
Cooler Flushing
S!@ ro prevent iniury to tace and eyes, always
wear safety glas$es or a tace shield when using the trans-
mission flusher.
NOTE: This procedure should be performed before rein-
stalling the transmission.
1. Check tool and hoses for wear or cracks before
using.
lf wear or cracks are found, replace the hoses be-
fore using.
2. Using the measuring cup, tillthe tank with 21 ounces
{approximately 213 lulll of biodegradable tlushing
fluid (J35944-20). Do not substitute with any other
fluid.
Follow rhe handling procedure on the fluid container.
Secure the tlusher filler cap and pressurize the tank
with compressed air to between 550-829 kPa(5.6-8.45 kgt/cm,, 80- 120 psi),
NOTE: The air line should be equipped with a water
trap to ensure a dry air system.
Hang the tool under the vehicle.
Attach the discharge hose of the tank to the return
line of the transmission cooler using a clamp.
Connect the drain hose to the inlet line of the trans-
mission cooler using a clamp. Securely clamp the op-posite end of the drain hose to a bucket or floor drain.
6.
DRAIN HOSE
TRANSMISSION
TRANSMISSIONCOOLER FLUSHEBCommorcially AvailabloKENT MOORE #J38405_A
DISCHARGE HOSE
14-168
BUCKET
7. With the water and air valves off. attach the water
and air supplies to the flusher. (Hot water it
available.)
OFF
8. Turn on the flusher water valve so water will tlow
through the oil cooler for 1O seconds. lf water does
not flow through the oil cooler it is completely
plugged, cannot be flushed, and must be replaced.
9. Depress the trigger to mix the tlushing lluid into the
water tlow. Use the wire clip to hold the trigger
oown.
10. While flushing with the water and flushing fluid for
2 minutes. turn the air valve on for 5 seconds every
15-20 seconds to create a surging action.
AIR PRESSURE:
MAX 829 kPa (8.45 kgt/cm,, 12O psi)
1 1. Turn the water valve off. Release the trigger, then
reverse the hoses to the cooler so you can flush in
the opposite direction. Repeat steps 8 through 1O.
12. Release the trigger and allow water only to rinse the
cooler with water for one minute.
13. Turn the water valve off and turn off the water
supply.
14. Turn the air valve on to dry the system out with air
for two full minutes or until no moisture is visible
leaving the drain hose.
CAUTION: Residual moisture in the oil cooler 01
pipes can damage the transmission.
15. Remove the flusher trom the cooler line. Attach the
drain hose 10 a oil container.
16. lnstallthe transmission and leave the drain hose at-
tached to the cooler line.

'1.Place difterential assembly on V-blocks and install
both axles.
M€asure the backlash of both pinion gears.
Standard (New):0.05-O.15 mm (0.OO2-0.006 inl
3. It the bscklssh is not within the standard, reDlace
the differential carrier.
DIAL II{OICATOR
Differential (818B1 enginel
Backlash InspectionFinal Driven Gear Replacement
1.Remove the bolts in a crisscross Datt€rn in several
steps, and remove the final driven gear from the
differential carrier.
NOTE: The final driven gear bolts have left-hand
threads.
10 x 1.0 mm101 N.m llO.3 kgl.m, 74.5 lbf.ftlLelt-hand threads
FINAL DRIVEIII GEARChamfer on inside diameter otlinal driven gear taces carrier.
DIFFEREI{TIALCARBIER
Install the final driven gear by tightening the bolts
in a c.isscross pattern in several steps.
15-4

Differential (818C1 enginel
Backlash Inspection
Place ditterential assembly on V-btocks and instatlboth axles.
Measure the backlash of both pinion gears.
Standard (Now): 0.o5-o.15 mm {0.oo2-0.O06 in)
lf the backlash is not within the standard, reDlacethe differential carrier,
Final Driven Gear Replacement
1. Romove the bolts in a crisscross Dattern in several
steps, and remove the tinal driven gear f.om thedifferential carrier.
NOTE: The tinal driven gear bolts have lett-hand
threads.
10 x 1.O mm101 N.m (10.3 kgt.m, 74.5 lbf.ftlLeft-hand threads.
FII{AL DN|VEN GEARChamfer on inside diameterof linal driven g€ar taces carrier.
DIFFERETTTIALCABRIER
Install the final driven gear by tightening the bolts
in a crisscross pattern in several steps.
15-12

Differential (AutomaticTransmission)
Backlash InspectionBearing Replacement
1.Place the differential assembly on V-blocks and in-
stall both axles.
Check backlash of both pinion gears.
Standard (New): 0.05-O.15 mm (0.002-0.006 inl
3. lf backlash is out of tolerance, replace the differen-
tial carrier.
SIDE GEARS
NOTE: Check the bearings for wear and rough rotation.
lf the bearings are OK, removal is not necessary.
1. Remove the ball bearings using a bearing puller.
BEARING PULLER
Install the new ball bearings using the special tool
with a Dress as shown.
BALL BEAING
DRIVER, 40 mm l.D.07746 0030100
15-22