1997 HONDA CR-V Reverse

Torque Gonverter Housing
BearingsGontrol Lever Assembly
Countershaft Bearing Replacement
1. Remove the countershaft bearing using the specialtool.
SLIOE HAMMER,3la" -16(Commercially available)
ADJUSTABLE BEARINGPULLER,25 - 40 mm07736 - A0100OB ol07736 - A01m0A
Install the ATF guide ptate.
Install a new countershaft
converter housing.
COUNTERSHAFTBEARING
bearing in the torque
DRIVER077i19 - 001m00
14-230
ATF GUIDE PLATE
Replacement
Check the condition and movement of the control leverassembly, lf the control lever assembly binds or doesnot move smoothly. replace it.
1. Remove the 6 x 1.0 mm bolt and lock washer.
2. Remove the change shaft trom the torque converterhousing.
3. Remove the control lever assembly from the controlshaft.
4. Install the new control lever assembly in the reverseorder of disassembly, until it bottoms in the torqueconverter housing.
LOCK WASHERReplace.
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Reverse ldler GearPark Stop
lnstallation
1. lnstall the reverse idler gear'
lnstallthe reverse idler gear shaft holder and needle
bearing into the transmission housing, then tighten
the bolts.
6 x 1.0 mm12 N.ft ll.2 kgl']n,a.7 rbl.frl
't.
Inspection/Adi ustment
Set the park lever in the E position.
Measure the distance between the park pawl shaft
and the park lever roller pin as shown.
STANDARD: 72.9 - 73.9 mm {2.87 - 2.91 in)
PARK STOP
PARK PAWL SHAFT
lf the measurement is out of standard, select and
install the appropriate park stop from the table
below.
PARK STOP
PARK STOP
After replacing the park stop. make sure the dis-
tance is within standard.
',.A\
Measuring /
MarkPart NumberLtL2
124537-PAg-00311.00 mm
(0.433 in)
11.00 mm
(0.433 in)
24538-PAg-00310.80 mm
(0.425 in)
10.65 mm
(0.419 in)
24539-PAg-00310.60 mm
(0.417 in)
10.30 mm
(0.406 in)
14-231
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Transmission
Reassembly (cont'd)
TRANSMISSION HANGER
6xl.0mm12 N.m (1.2 kgl.m,8.7 rbt.ft)
MAINSHAFT SPEEDSENSOB
TRANSMISSION HOUSING MOUNNNG BOLT10 x L254,1 N.m {/4WD: 192WD: 18
t
f,
llf, l
gil /
COUNTERSHAFT BEVERSE GEAB
LOCK WASHER
MAINSHAFTSUB.ASSEMBLY
OOWEL PIN14x25mm
TRANSMISSION HOUSINGGASKET
DOWEL PIN14x25mm
REVERSE SHIFTFORK
DOWEL PIN14 x 20 rnm
NEEDLE BEARING
REVERSE SELECTOR
COUNTERSHAFTSUB.ASSEMBLY
DIFFERENTIAL ASSEMBLY
TRANSFES ASSEMBLY(4wDl
14-252
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17.
18.
19.
20.
21.
Install the sub-shaft assembly in the transmission
housing (see page 14-210 and 14-2'111.
lnstall the ATF magnet (4WD) in the transmission
housing, if necessary.
Install the reverse idler gear and gear shaft holder
(see page 14-231).
Install the differential assembly in the torque con-
verter housing.
Assemble the mainshaft and countershaft sub-
assembly (see page 14-206 and 14 207],, then install
them together in the torque converter houslng.
COUNTERSHAFTSUB-ASSEMBLY
Turn the shift fork so the large chamfered hole is
facing the fork bolt hole. then install the shift fork
with the reverse selector and torque the lock bolt.
Bend the lock tab against the bolt head.
SHIFI FORK
LOCK WASHERBeplace.
6 r 'l.O mm4 N.m(1.4 ksl.m. 1O lbt.ft)
Large chamfered hole
24.
Install the reverse gear with the collar and needle
bearing on the countershatt.
Align the spring pin on the control shaft with the
transmission housing groove by turning the control
shaft.
SPRING PIN CONTROL SHAFT
TRANSMISSION HOUSING
25. Place the transmission housing on the torque con-
verter housing with a new gasket and the three
dowel pins,
Make sure that the mainshaft speed sensor is not
installed on the transmission housing before
installing the transmission housing on the torque
converter housing.
26. Install the transmission housing mounting bolts
along with the transmission hanger and the connec-
tor bracket, then torque the bolts in two or more
steos in the seouence shown.
NOTE: The illustration shows the 4WD automatic
transmission. The 4WD has 19 transmission hous-
ing mounting bolts; the 2WD has 18 bolts.
TOROUE: 44 N.m {,[.5 kgf.m, 33 lbf'ft)
{cont'd)
14-253
SPRING PIN
TNANSMISSION
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Transmission
Cooler Flushing
@@ To prevent in;ury to face and eyos, atwayswear safety glasses ot a face shield when using thetlansmission flusher.
This procedure should be performed before reinstallingthe transmission.
2.
LCheck equipment for wear and cracks before using.Replace any worn or cracked components.
Using the measuring cup. fill the tank with 21 ounces{approximately 213 lull) ol biodegradable flushingfluid (J35944 - 20). Do not substitute with any otherfluid. Follow the handling procedure on the fluidcontaaner.
Secure the flusher filler cap, and pressurize theflusher with compressed air to 550 - 829 kpa (5.6 _
8.45 kgf/cm,, 80 - 120psi). The air line should beequipped with a water trap to ensure a dry air sys-tem.
Hang the flusher under the vehicle.
Attach the flusher discharge hose to the return lineof the transmission cooler using a clamp.
Connect the drain hose to the inlet line on the trans-mission cooler using a clamp.
IMPORTANT:
Securely clamp the opposite end ofthe drain hose to abucket or floor drain.
DISCHARGEHOSE
tAirlp Water
TnAI{SrfiSStoN coot"€RFLUSHER{Comm.rcidly.v.il.bt.lK.r -Moor. J38,t{15.Aor aquival.nt
5.
14-264
7. With the water and air valves off, attach the water andair supplies to the flusher. (Hot water if available.)
10.
8.
1'I.
Turn on the water valve for 1O seconds. lf waterdoes not flow through the cooler, it is completelyplugged, cannot be flushed, and must be replaced.
Depress the trigger to mix the flushing fluid into thewater flow. Use the wire clip to hold the trigger down.
While flushing with the water and flushing fluid fortwo minutes, turn the air valve on for five secondsevery 15 - 20 seconds to create a surging action.AIR PRESSURE: MAX 845 kpa (8.45 kgf/cmr, t20 psi)
Turn the water valve off. Release the trigger, thenreverse the hoses to the cooler so you can flush inthe opposite direction. Repeat steps 8 through 10.
Release the trigger, and rinse the cooler with wate.for one minute.
Turn the water valve off, and the water supply off.
Turn the air valve on for two minutes, or until nomoisture is visible leaving the drain hose. Residualmoisture in the cooler or lines can damage thetransmission.
Remove the flusher from the cooler line. Attach thedrain hose to a container.
Install the transmission, and leave the drain hoseattached to the cooler line.
12.
13.
14.
to.
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Shift Lever
Removal/lnstallation
SRS components are located in this area. Review the
SRS component locations, precautions, and procedures
in the SRS section (24) before performing repairs or ser-
vrce.
1. Remove the instrument panel lower cover and the
column covers (see section 171.
2. Shift to N position, then remove the lock pin from
the cable adjuster.
3. Separate the shift cable from the cable adjuster, Do
not bend the shift cable excessively.
ADJUSTER ROD
SHIFT CABLE
22 N.m (2.2 kgf.m, 16 lbt.ftl
7.
Remove the flange nuts and bolts securing the
steering column, then lower the steering column.
FLANGE NUTS16 N m (1.6 kgl m, 12 lbt'ftl
Disconnect the shift lock solenoid and the park pin
switch connector.
Remove the bolts securing the shift lever assembly,
then remove the shift lever assembly.
lnstall the shift lever assembly in the reverse order
of removal.
NOTE;
. Make sure the lock pin is seated securely in the
cable adjuster.
. Replace the lock pin if it does not snap over the
cable adjuster securely.
Check the cable adjustment after installing the shift
lever (see page 14-27'l).
14-267
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Description
Rear Differential
Outline
The Real-time 4WD-Dual Pump System model has a hydraulic clutch and a differential mechanism in the rear differential
assembly. Under normal conditions, the vehicle is driven by the front wheels. However, depending on to the driving force
of the front wheels and the road conditions. the system instantly transmits appropriate driving force to the rear wheels
without requiring the driver to switch between 2WD (tront wheel drive) and 4WD (four wheel drive). The switching mecha-
nism between 2WD and 4WD is integrated into the rear differential assembly to make the system light and compact.
ln addition, the dual-pump system switches off the rear-wheel-drive force when braking in a forward gear. This allows the
braking system to work properly on models equipped with an Anti-lock Braking System (ABS).
Construction
The rear differential assembly consists of the torque control differential case assembly and the rear differential carrier
assembly. The torque control differential case assembly consists of the differential clutch assembly, the companion
flange, and the oil pump body assembly. The rear differential carrier assembly consists of the differential mechanism. The
differential drive and driven gears are hypoid gears.
The oil pump body assembly consists of the front oil pump, the rear oil pump, the hydraulic control mechanism, and the
clutch piston. The clutch piston has a disc spring that constantly provides the differential clutch assembly with a preset
torque to Drevent abnormal sound.
The clutch guide in the differential clutch assembly is connected to the propeller shaft via the companion flange, and it
receives the driving force lrom the transfer assembly. The clutch guide rotates the clutch plate and the front oil pump in
the oil pump body.
The clutch hub in the differential clutch assembly has a clutch disc that is splined with the hypoid drive pinion gear. The
hypoid drive gear drives the rear oil pump.
The front and rear oil pumps are trochoidal pumps. The rear oil pump capacity is 2.5 percent larger that the front oil pump
to handle the rotation difference between the front and rear wheels caused by worn front tires and tight corner braking.
The oil pumps are designed so the fluid intake works as a fluid discharge when the oil pumps rotate in reverse. Genuine
Honda CVT fluid is used instead of differential fluid.
Operation
When there is a difference in rotation speed between the front wheels (clutch guide) and rear wheels (hypoid driven gear),
hydraulic pressure from the front and rear oil pumps engages the differential clutch, and drive force from the transler
assembly is applied to the rear wheels.
The hydraulic pressure control mechanism in the oil pump body selects 4WD mode when the vehicle is started abruptly,
or when accelerating in a forward or reverse gear (causing rotation difference between the front and rear wheels). or
when braking in reverse gear {when decelerating). lt switches to 2WD mode when the vehicle is driven at a constant speed
in forwar! or reverse gear (when there is no rotation difference between the front and rear wheels), or when braking in a
fo rwa rd gear (when decelerating).
To protect the system, the differential clutch assembly is lubricated by hydraulic pressure generated by the oil pumps in
both 4WD and 2WD modes. Also, the thermal switch relieves the hydraulic pressure on the clutch piston and cancels 4WD
mode if the temDerature of the differential fluid rises above normal.
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Forward Deceleration l2WDl
During forward deceleration, the dual pump system functions in two wheel drive mode.
Because of braking characteristics, the speed of the rear wheels may exceed the speed ol the front wheels during deceler-
ation. lf so, the rear oil pump spins faster than the front oil pump.
Fluid discharged by the rear oil pump is simply drawn in again by the rear pump and recirculated. Because there is no
pressure built up at the clutch piston. the clutch piston does not engage, and the vehicle remains in 2WD (front wheel
drive).
Reverse Start and Acceleration (4WD)
During reverse start and reverse acceleration, the dual pump system can engage four wheel drive.
lf the front wheels spin faster than the rear wheels, the front oil pump spins faster than the rear oil pump. The front oil
pump draws in fluid through check valve A and discharges it. {Note that in reverse, the direction of the pumps is the oppo-
site of that during forward driving.)
Some of the fluid that is discharged by the front oil pump is drawn in by the rear oil pump. The remaining fluid passes
through check valve F into the cylinder of the clutch piston, where it is regulated by two orifices.
The regulated hydraulic pressure at the clutch piston may force the plates and discs of the clutch together to form a con-
nectlon. The engaged clutch passes driving force from the transfer assembly to the rear wheels, producing 4WD.
oRtFtcEsFRONT OIL PUMP
{cont'd)
15-7
REAR OIL PUMP
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