Description
General Operation (cont'dl
Gsar Selection'97 - 98 Models
The shift lever has seven positions; El PARK, ts REVERSE, N NEUTRAL, Ell 1st through 4th ranges, lpq 1st th.ough 3rdranges, P 2nd gear, and [ 1st gear
'99 - 00 Models
The shitt lever has six positions; El PARK, E REVERSE, E NEUTRAL. E ,lst through 4th ranges, and 1st through 3rd(when Over-Drive (O/D) is OFF) ranges. @ 2nd gear, and E 1st gear.
Starting is possible only in @ and @ positions. using a slide-type. neutral-safety switch.
Automatic Transaxle (A/T) Gear Position IndicatorThis indicator in the instrument panel shows which gear has been selected.
Transler Mochanism {4WD}
The transfer mechanism consists of the transfer shaft drive gear. the transfer shaft. the transfer drive gear, the transfer driv-en gear shaft, and the companion flange, The transfer mechanism assembly is on the rear side ot the transmission. besidethe differential. The transfer shaft drive gear on the final driven gear drives the transfer shaft driven qear. power is transmit-ted to the rear differential via the transfer shaft and the Drooeller shaft.
Clutches
The four-speed automatic transmission uses hydraulically-actuated clutches to engage or disengage the transmission gears.When the hydraulic pressure is introduced into the clutch drum, the clutch piston moves. This presses the friction discs andsteel plates together, locking them so they don't slip. Power is then transmifted through the engaged clutch pack to its hu$mounted gear. When hydraulic pressure is bled from the clutch pack, the piston releases the friction discs and steel plates, andthey are free to slide past each other. This allows the gearto spin independently on its shaft, transmitting no power.
lst Clutch
The 1st clutch engages/disengages lst gear, and is located at the end ofthe mainshaft, just behind the end cover.The 1st clutch is supplied hydraulic pressure by its ATF feed pipe within the mainshaft.
lst-hold Clutch
The 1st-hold clutch engages/disengages 1st-hold or E position, and is located at the middle of the sub-shaft. The 1st-holdclutch is supplied hydraulic pressure by its ATF feed pipe within the sub-shaft.
2nd Clutch
The znd ciutch 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 theinternal hydraulic circuit.
PositionDescription
Reverse; reverse selector engaged with countershaft reverse gear and 4th clutch locked.
Allclutches released.
General driving; starts off in 1st, shifts automatically to 2nd, 3rd, then 4th, depending on vehicle speedand throftle position. Downshifts through 3rd,2nd, and lst on deceleration to stop.The lock-up mechanism operates;n 3rd and 4th gear.
used for rapid €cceleration at highway speeds and general driving; stans off in 1st, shifts automatically to2nd_then 3rd, dejending on vehicle speed and throttle position. Downshifts through lower gears on decel-eration to stop. The lock-up mechanism comes into operation in 3rd gear.
Driving in 2nd_gear; stays in 2nd gear, does not shift up and down. For engine braking or better trac_tion starting off on loose or slippery surfaces.
Driving in 1st gear; stays in 1st gear, does not shift up. For engine braking.
tll PARK
t!!l l|EvEn>E
E NEUTRAL
Ell DRrvE ('97 - sB)E DRrvE ('ss - oo)(1st through 4th )
E DRrvE {'97 - s8)O DRTVE with over-Drive (O/D) is OFF('99 - 00)(1st through 3rd)
E SECOND
E FIRST
14-4
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Pressure Testing
Changing
NOTE: Keep all foreign particles out of the transmis-
sion.
1. Bring the transmission up to operating temperature
(the radiator fan comes on) by driving the vehicle.
Park the vehicle on level ground. turn the engane
off. then remove the drain Plug.
NOTE: lf a cooler flusher is to be used, see page
14-264 and 14-265.
TRANSMISSIONEND COVER
DRAIN18 x 1.5 mmSEALING WASHEBReplace.49 N.m {5.0 kgt.m, 36 lbf.tl)
Reinstall the drain plug with a new sealing washer,
then refill the transmission with the recommended
fluid to the uDper mark on the dipstick. Always use
Genuine Honda Premium Formula Automatic
Transmission Fluid (ATF) Using a non-Honda ATF
can affect shift quality.
Automatic Transmission Fluid Capacity:
4WD;
2.9 { (3.1 US qt. 2.6 lmp qt) 8t change
5.8 ? {7.2 US $, 6.0 lmp qt} at ovethaul
2WD:
2.7 | l2.S US qt,2.1lmp qtl ai change
5.9 ? {6.2 US $, 5.2 lmp qtl at ovolhaul
2.
a
a
1.
Wlrile testing, be careful of the rotaling wheols.
Mako sure lifts, iacks, and safety stands ar€ placed
properly (see scction 11.
Before testing, be sure the transmission fluid is
filled to the proPer level.
4WD:
Raise the vehicle (see section 11.
2WD:
Raise the front of the vehicle, and make sure it is
securely supported. Set the parking brake, and block
both rear wheels securely.
Allow all four wheels {4WD) or front wheels (2wD}
to rotate freely.
Warm up the engine (the radiator fan comes on),
then stop it and connect the tachometer.
Connect the oil pressure gauges to each inspection
hole securely, and do not allow dust or other foreign
particles to enter the inspection holes.
TOROUE: 18 N'm ll.8 kgf'm, 13 lbf'ft)
5.
A/T PRESSURE HOS€,2210 mm07MAJ - PYiOllA
{4 Requircd}
,4'/"' ,a
W'
A/T PRESSURE HOSEADAPTER07MAJ - PYt0120(il Rcquiledl
6. Measure the following Pressure:. Line Pressure ..........,14-162
. 1st. 1st-hold Clutch Pressure .............'. 14-162
. 2nd,3rd and 4th Clutch Pressure .......... 14-163
7. Install new sealing washers and the sealing bolts in
the inspection holes, and tighten to the specified
toroue.
(cont'd)
A/T OIL PRESSUREGAUGE SET W/PANEL07{06 - 0020400
/4\\-J-- (
+..\.-.\-'-\
A/T LOW PBESSUREGAUGE w/PANEL07406 - 0070300
TOROUE: 18 N'm 11.8 kgf'm, 13 lbf'ft)
14-161
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Transfer
4.
Inspection
@E Mako suro lifts, jacks, and safety standsare placod properly lsoe section t).
1. Raise the front of the vehicle, and make sure it issupported securely.
2. Set the parking brake, and block both rear wheelssecurely.
Shift to E position.
Make a reference mark across the propeller shaftand the transfer assembly flanges.
Separate the propeller shaft from the transferassembly.
8 x 1.25 mm32 N.m 13.3 kgl,m,24 lbf.ftlReplace.
14-164
\
6. Set a dial indicator on the transfer assembly flange.then measure the transfer gear backlash.
STANDARD: 0.06 - 0.16 mm (0.002 - 0.006 inl
7. lf the measurement is out of standard, remove thetransfer assembly and adjust transfer gear backlash{see page '14-232 thru 14-2491.
8. Check for fluid leaks between the mating faces oftransfer cover A and cover B.
9. lf there is a fluid leak, remove the cover, and reDlacethe O-ring.
'10. Check for fluid leaks between the mating face of thetransfer assembly and transmission.
11. lf there is a fluid l€ak, remove the transf€r assem-bly, and replace the O-ring,
12. Check the transfer oil seal for damage and fluidle8ks.
13, lf oil seal replacement is required. remove the trans-fer assembly, replace the oil seal, and adjust thetotal starting torque (see page 1+232 thtu ]'4-249||.
NOTE: Do not replace the oil seal with the transferassembly on the transmission.
COMPANION FLANGE
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oatl,6
@!.,
ao6l
@o@@@@@o@@@)@@@@@@@@@@)
@@@@)@@@@@@@
REVERSE IDLER GEAR SHAFT,/HOLDERNEEOLE BEARINGTRANSMISSION HOUSINGTRANSMISSION HOUSING OIL SEAL R€place.SET RING,80 mm Selective part
REVERSE GEAR COLLARCOUNTERSHAFT REVERSE GEARNEEDLE BEARINGLOCK WASHER Replace.REVERSE SHIFT FORKREVERSE SELECTORREVERSE SELECTOR HUBCOUNTERSHAFT 4TH GEARNEEDLE BEARINGDISTANCE COLLAR,28 mm Selective pan
COUNTERSIIAFT 2ND GEARTHRUST NEEDLE BEARINGCOUNTERSHAFT 3RD GEARNEEDLE AEARINGCOUNTERSHAFT 3RD GEAR COLLARTHRUST NEEOLE BEARINGSPLINEO WASHER3RD CLUTCH ASSEMBLYO-RINGS Replace.COUNTERSHAFTSHIFT CONTROL SOLENOID COVERHARNESS CLAMP BRACKETSHIFT CONTROL SOLENOID VALVE A/B ASSEMBLYHARNESS CLAMP BRACKETSHIFT CONTROL SOLENOID VALVE FILTER/GASKETReplace.SNAP RINGTHRUST WASHERTHRUST NEEDLE BEARINGMAINSHAF ,ITH GEARNEEDLE BEARINGSTHRUST NEEDLE BEARINGMAINSHAFT 4TH GEAR COLLAR2ND/4TH CLUTCH ASSEMBLYO-RINGS ReDlace.THRUST WASHER,36.5 x 55 mm Selective part
THRUST NEEDLE BEARING
MAINSHAFT 2ND GEARNEEDLE BEARINGTHRUST NEEOLE BEARINGMAINSHAFTSEALING RINGS,35 mmSEALING RING. 29 mmNEEDLE BEARINGSET RINGlST-HOLD CLUTCH ASSEMSLYO-RINGS Replace.THRUST WASHERTHRUST NEEDLE BEARINGNEEDLE BEARINGSUB.SHAFT 4TH GEARTHRUST NEEDLE BEARINGSU&SHAFT,ITH GEAR COLLARSUB.SHAFTNEEDLE BEARING STOPNEEDLE BEARINGATF GUIDE CAP Replace.TRANSMISSION HANGERBREATHER CAPMAINSHAFT SPEED SENSORO-RING Reolace.REVERSE IDI.fR GEARDOWEL PlN, lil x 25 mmSNAP RINGSSU&SHAFT TRANSMISSION HOUSING AEARINGMAINSHAFT TRANSMISSION HOUSING BEARINGCOUNTERSHAFT TNANSMISSION HOUSINGBEABINGDOWEL PlN, 14 x 25 mrnCONNECTOR BRACKETDOWEL PlN, 14 x 20 mmTRANSMISSION HOUSING GASKET Replace.DIFFERENTIAL ASSEMBLYTOROUE OONVERTER HOUSING OIL SEAL Replace.TOROUE CONVERTER HOUSING
@@@@@@@@@@@@@@@@@@@@@@@)@@@@@@@
@@@@@@@
TOROUE SPECIFICATIONS
Boli/Nut No.Torque ValueSizeRemarks
6B
10A
12 N.m (1.2 kgf.m,8.7 lbf.ft)'14 N.m (1.4 kgim, 10 lbf'ft)
44 N.m (4.5 kgim, 33 lbf.ft)
6x 1.0 mm
6x1.0mm
10 x '1.25 mm
14-1A3
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Sub-shaft Bearings
Replacement
NOTE: Lubricate all parts with ATF before reassembly.
1. Expand the snap ring with snap ring pliers. thenpush the bearing out of the transmission housing
using the special tools and a press as shown.
Remove the needle bearing stop.
Remove the needle bearing from the transmission
housing using a drift.
ATTACHMENT,ai:l x 68 mm07746 - 00105q)
14-212
SNAP RING
4. Install a new needle bearing in the housing using
the sOecial tools and a oress as shown.
7.
cI
32x35mm077/46 - qt10t(x,
Expand the snap ring with snap ring pliers, then
insert the ball bearing part-way into the housing
using the special tools and a press as described in
step 1. Install the bearing with the groove facing
outside the housing.
Release the pliers, then push the bearing down into
the housing until the snap ring snaps in place
around it.
After installing the ball bearing verify the fottowing:
. The snap ring is seated in the bearing and hous-
Ing grooves.
. The ring end gap is correct.
ENDGAP:0-7mml0 - 0.28 inl
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Transmission Housing Bearings
Mainshaft/Countershaft Bearings Replacement
1. Expand each snap ring with snap ring pliers, then
push the bearings out of the transmission housing
using the special tools and a press as shown.
Do not remove the snap rings unless it's necessary
to clean the grooves in the housing.
DFIVER077a9 - 001(xx)o
ATTACHMENT
ATTACHMENT
. Mainshaft Bearing Romoval:
ATTACHMENT, 72 x 75 mm
077/16 - 0010600
. Countqrshaft Bearing Removal:
ATTACHMENT, 62 x 68 mm
07746 - 0010500
MAINSHAFT BEARING
4.
Expand each snap ring with snap ring pliers, then
coat the new bearings with ATF and insert them
part-way into the housing using the special tools
and a press as shown. Install the bearings with the
groove facing outside the housing.
Release the pliers, then push the bearings down
into the housing until the rings snap in place
around them.
077/49 - 0010000
ATTACHMENT
. Mainshaft Bearing Installation:
ATTACHMENT,72 x 75 mm
07746 - 0010600
. Countershaft Bearing Instsllation:
ATTACHMENT, 52 x 68 mm
077'16 - 0010500
After installing the bearings, verify the following:
. The snap rings are seated in the bearing and
housrng grooves.
. The snap rings do not bind.
. The ring end gaps are correct,
l0 - 0.28 in)
SNAP RING
ENDGAP:0-7rnm
14-227
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Transmission Housing Bearings
Sub-shaft Bearing Replacement
1. Expand the snap ring with snap ring pliers, thenpush the bearing out of the transmission housingusing the special tools and a press as shown.
Do not remove the snap ring unless it,s necessaryto clean the groove in the housing.
ATTACHMEI{T,5:l x 68 mm07r{5 - @10500
SNAP RI]TG
DRIVER07749 - tDl(xx)o
ATTACHMENT,6:l x 68 mm077a6 - (X,r0500
14-228
SNAP RING
Expand the snap ring with snap ring pliers, thencoat the new bearing with ATF and insert it part-way into the housing using the special tools and apress as shown. lnstall the bearing with the groovefacing outside the housing.
Release the pliers, then push the bearing down intothe housing untilthe ring snaps in place around it.
DRIVER07743 - 0010mo
ATTACHMENT,{i:l x 68 mm07746 - 0010500
GROOVE
After installing the bearing, verify the following:
. The snap rjng is seated in the bearing and hous_ing grooves.
. The snap ring does not bind.. The ring end gap is correct,
ENDGAP:0-7mm
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Transmission
28.
Reassembly (cont'd)
PARX GEAR
ONE.WAY CLUTCH
BEARING
Install the mainshaft speed ssnsor (with new O-ring) on the transmission housing.
Install the park lever on the control shaft, theninstall the lock bolt with a new lock washer. Do notbend the lock tab of the lock washer in this step;bend it after checking the park pawl engagement instep 45.
Assemble the one-way clutch and the park gear onthe countershaft 1st gear (see page l4-2Og).
Lubricate these pans with ATF:. Countershaft threads. Old locknut threads and flat end. Old conical spring washer. Park gear contact area with conical springwasner
Install the countershaft 1st gear collar, needle bear-ing, and the countershaft 1st gear/park gear assem-bly on the countershaft.
Install the park pawl shaft. pawl spring, pawl. andpawl stop on the transmission housing, thenengage the pawl with th€ park gear.
31.
PAWL
I
I
a
STOP
LOCK BOLT
PAWL SHAFT
COUNIERSHAFTCOUNTERSHAFTlST GEAR COLLAR
14-254
33. Install the old locknut and the old conical springwasher on ths countershaft. Tighten the old locknutto seat the park gear to the specified torque, thenremove th€ washer and locknut. The locknut hasleft-hand threads. Do not use an impact wrench.Always use a torque wrench to tighten the locknut.
TOROUE: 103 N.m {10.5 kgf.m, 75.9 lbnft)
34. Slip the specialtool ontothe mainshaft.
MAINSHAFT07GAB - PF50101 or07GAB - PF501q)
PARK GEAR
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