1994 HONDA INTEGRA drive shaft

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

Number of @indicator light
blinks while
Service Check
Connector is
connected with
the special tool.
@ indicator
lightPossible CauseSymptomRefer to
page
'loBlinksDisconnected engine coolant tempera-
rure (ECT) sensor connector
Short or open in ECT sensor wire
Faulty ECT sensor
Lock-up clutch does not
engage.14-68
1lOFFDisconnected ignition coil connector
Short or open in ignition coil wire
Faulty ignition coil
. Lock-up clutch does not
engage.'t 4-7 0
13Blinks. Shon or open in LT GRN wire between
the D3 terminal and ECM. Faulty barometric pressure {BARO)
sensor
NOTE: The BARO sensor is built into
the ECM
. No specific symptom
appears.
14-7 1
14Blinks. Short of open in FAS {YEL} wire be-
tween the D16 terminal and ECM. Faulty ECM
. Transmission jerks hard
when shitting.
't5OFFDisconnected mainshaft speed sensor
connecror
Short or open in mainshaft speed sen-
sor wire
Faulty mainshaft speed sensor
. Transmission jerks hard
when shifting.
14-75
SymptomProbable CauseRet.page
LQ! indicator light is on steady, not blinking whenever the ignition is on.14-77
[Q3] indicator light does not come on for 2 seconds after ignition is first
turned on.14-78
Lock-up clutch does not have duty operation (ON-OFFI.Check A/C signal with
A/C on.14-80Lock-up clutch does not engage.
Shitt leve. cannot be moved lrom @ position with the brake pedal
depressed.Check brake switch signal,14-41
It the self-diagnosis LQ4 indicator light does not blink, perform an inspection according to the table below.
a lf a customer describes the symptoms for codes 3, (yet the LQ! indicator light is not blinkingl, 6, 1 1 or 15, it will
be necessa.y to recreate the symptom by test driving. and then checking the @ indicator light with the ignition still
oN.
e lt ttre @ indicator light displays codes olher than those listed above or stays lit continuously, the TCM is faulty.. Sometimes the Lqd indicator light and the Malfunction Indicator Lamp (MlL)/Check Engine light may come on simul-taneously. lf so, check the PGM-Fl system according to the numbe. of blinks on the MIL/Check Engine light. thenreset the memory by removing the BACK UP fuse in the unde.-hood fuse/relay box for more than 1O seconds. Drive
the vehicle for several minutes at speed over 30 mph (5O km/h), then recheck the MIL/Check Engine light.
NOTE:
. PGM-FI system
The PGM-Fl system on this model is a sequential multiport fuel injection system.a Disconnecting the BACK UP luse also cancels the radio anti-theft code. preset stations and the clock setting. Get
the fuse so vou can reset them.the customer's code number and make note ot the radio
14-51

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

1 2. Pry the right driveshaft out of the differential and pry
the lett driveshatt out of the intermediate shaft.
'13. Pull on the inboard joint and remove the right and
left driveshafts (see section 16).
'14. Tie plastic bags over the driveshaft ends.
NOTE: Coat all precision finished surfaces with
clean engine oil.
PLASTIC BAG
Disconnect the heated oxygen sensor (HO2S) con-
necror.
Remove the exhaust pipe A.16.
SELF-LOCKINGNUTReplace.
Replace.
14-101
17. Remove the intermediate shaft.
Remove the shift cable cover, then remove the shift
cable by removing the control lever.
CAUTION: Take care not to bend the shift control
cabls whilo removing it.
18.
SHIFT CABLE
LOCKWASHER CONTROLLEVERReplace.
(cont'dl

Transmission
Removal (cont'dl
'1 9.Remove the right tront mount/bracket, then remove
the end ol the throttle cont.ol cable trom the throt-
tle control lever.
Remove the ATF cooler hoses at the joint pipes. Turn
the ends of the cooler hoses up to prevent ATF from
flowing out, then plug the joint pipes.
NOTE: Check tor any sign ot leakage at the hosejoints.
THROTTLE CONTROL
23. Place a jack under the transmission, raise the lrans-
mission just enough to take weight off ol the
mounts. then remove the transmission mount.
20.
RrcHT FRoNT iiouNT/BRAcKET BoLTsATF COOLERHOSESReplace.24. Remove the t.ansmission housing mounting bolts
and rear engine mounting bolts.
25. Pull the transmission away from the engine until it
clears the 14 mm dowel Dins, then lower it on the
transmission iack.
21. Remove the engine stiftener and totque converter
cover.
22. Remove the eight drive plate bolts one at at time
while rotating the crankshaft pulley.
WASHERSReplace.
'i z/'l e
" (-J t'
14-102

OIL FEED PIPE
ACCUMULATOR COVER
O-RING Replace.
OIL FEED PIPE
OIL FEED PIPE
SERVO OETENT EASE
LOCN WASHER Feplace.
ATF STRAINER
SUCTION PIPE COLLAR
SERVO BOOY
THROTTLE CONTROL SHAFT
E RING
SERVO SEPARATOR PLATE
1ST ACCUMULATOR CHOKE
CHECK BALL
STOPPER SHAFT STAY
SECONDARY VALVE BODY
DOWEL PIN
SECONDARY SEPARATOR PLATE
LUBRICATOR PLATE
OIL FEED PIPE
LOCK.UP VALVE BODY
DOWEL PIN
LOCK-UP SEPARATOR PLATE
TOROUE CONVERTER CHECK VALVE SPRING
TOROUE CONVERTER CHECK VALVE
COOLER CHECK VALVE SPRING
COOLER CHECK VALVE
TOROUE SPECIFICATIONS
@ REGULAToR vALvE BoDY
@ STOPPER SHAFT
@ O-RING Reptace.
@ STATOR SHAFT
@ otl FEED PIPE
@ MAIN vALvE BoDY
@ CHECK EALL
@ DowEL PIN
@ oIL PUMP DRIVE GEAR
@ OIL PUMP DRIVEN GEAR SHAFT
Q9 OIL PUMP DRIVEN GEAR
@ MAIN SEPARAToR PLATE
@ DowEL PrN
@ coNTBoL sHAFT
@ DETENT SPRING
@ DETENT ARM SHAFT
@) DETENT ARM
@ ATF MAGNET
@ COUNTEBSHAFT TOROUE CONVERTER HOUSING
NEEDLE BEANING
@ oIL GUIDE PLATE
@ TOROUE CONVERTER HoUSING
@) MAINSHAFT TOROUE CONVERTER HOUSING BEARING
@ oll SEAL Reptace.
@ LocK-up coNTRoL soLENotD vALvE A/B
@ coNNECTOR STAY
@ LOCK-UP CONTROL SOLENOTD VALVE A/B
FILTER/GASKET Replace.
ReI No.Torque ValueBolt SizeRemarks
12 N.m (1 .2 kgf.m, 8.7 lbf.ft)6 x 1.O mm
14-109

Torque Gonverter Housing/Valve Body
Removal
\LOCK-UP VALVE llB.DY\u
Bolts, 7
DOWEL PIN
otLFEEDPIPES
A
Ll
ll|i
|]V
OII- FEED PIPES
LOCK-UP SEPARATORPI.ATE
TOR COVER
OIL FEEO PIPE
8oll3.3
ATF STRAINER
SERVO DETENTBASEREGULATOR VALVEAODY
OIL FEED PIPES
DOWEL PIN
OIL PUMP DRIVEN GEAR SHAFT
OIL PUMP DRIVEN
SECONDARY VALVEBODY
DOWEL PIN
SECONDARY SEPARATORPLATE
SUCTION PIPECOLLAR
MAIN S€PARATORPLATE
ft-- rrr urcler
TOROUE CONVERTERHOUSING
8olts, 4 Boll
MAIII VALVEBODY
14-114

NOTE:
a Clean all parts thoroughly in solvent or carbuetor
cleaner and dry with compressed air.a Blow out all passages.
a When removing the valve body replace the following:. O-rings. Lock wsshers
1 . Remove the oil feed pipes from the servo body, s€r-
vo detent base, accumulatof cover, lock-uD valve
body and main valve body.
2, Remove the three bolts securing the ATF strainer and
servo detent base, then remove them.
3. Remove the three bolts securing the accumulator
cover. then remove the accumulator cover.
4. Remove the six bolts secu.ing the servo body, then
remove the servo body and separator plate.
5. Remove the bolt securing the secondary valve body,
then remove the secondary valve body and separa-
tor plate.
6. Remove the eight bolts securing the lubricator plate
and lock-up valve body, then remove the lubricatorplate, lock-up valve body and separator plate.
7. Femove the bolt securing the.egulator valve body,
then.emove the regulator valve body.
8. Remove the stator shaft and stopper shaft.
9. Remove the detent spring t,om the detent arm. thenremove the control shaft from the torque convenerhousing.
1O. Remove the detent arm and detent afm shaft t.om
the main valve bodv.
1 1 . Remove the four bolts secu.ing the main valve body,then remove the main valve body.
12. Remove the oil pump driven gear shaft, then remove
the oil pump gears.
'13. Remove the main separator plate with two dowelDtns.
14, Remove and clean the ATF magnet.
15.Clean the inlet opsning of the ATF strainer thorough-
ly with compressed air, then check that it is in good
condition, and the inlet opening is not clogged.
II{LET OPENING
Replace the ATF strainer it it is clogged or damaged.
NOTE: The ATF strainer can be reused if it is notclo9ged.
16.
14-115