1997 HONDA CR-V gears

1.Remove the control lever mounting bolt trom the
torque converter side of the torque converter hous-
ing. (4WD)
Remove the ATF feed pipes from the servo body,
secondary valve body, lock-up valve body, and main
valve body.
For '97 - 98 models:
Remove the two bolts securing the ATF strainer and
servo detent base, then remove the strainer and the
base.
For'99 - 00 models;
Remove the ATF strainer {one bolt).
4. For'97 - 98 models:
Remove the seven bolts securing the servo body,
then remove the servo body and separator plate'
For'99 - 00 models:
Remove the eight bolts securing the servo body,
then remove the servo body and separator plate'
5. Bemove the three bolts securing the secondary
valve body, then remove the secondary valve body'
stop shaft bracket, and separator plate.
6. Remove the eight bolts securing the ATF lubrication
plate and lock-up valve body, then remove the ATF
lubrication plate, lock-up valve body' and separator
plate.
7. Remove the one bolt securing the regulator valve
body, then remove the regulator valve body'
8. Remove the stator shaft and stop shaft.
9. Remove the detent spring from the detent arm, then
remove the control shaft from the torque converter
houslng.
10. Remove the detent arm and detent arm shaft from
the main valve body.
11. Remove the five bolts securing the main valve
body, then remove the main valve body.
When removing the main valve body, do not let the
eight check balls fall out.
12. Remove the ATF pump driven gear shaft, then
remove the ATF PumP gears.
13. Remove the main separator plate with two dowel
prns.
14, Clean the inlet opening of the ATF strainer thor-
oughly with compressed air, then check that it is in
good condition, and the inlet opening is not clogged
or damaged.
15.
INLET OPENING
Test the ATF strainer by pouring clean ATF through
the inlet opening, and replace it if it is clogged or
damaged.
14-191
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ATF Pump
Inspection
1. Install the ATF pump gears and ATF pump driven
gear shaft in the main valve body Lubricate all
parts with ATF, and install the ATF pump driven
gear with its grooved and chamfered side facing up
MAIN VALVE AOOY
ATF PUMP ORIVE
2. Measure the side clearance of the ATF pump drive
and driven gears.
ATF Pump Gears Side {Radial} Cloarance:
Standard (Newl:
ATF Pump Drive Gear
0.105 - 0.1325 mm {0.004 - 0.005 in}
ATF Pumo Driven Gear
0.035 - 0.0625 mm {0.0014 - 0.0025 in)
MAIN VAI-VE BOOY
fl
L/
ATF PUMPDRIVE GEAR
ATF PUMPDRIVEN GEARInspecl teeth {or wear and damage
Inspect teeth for wear and damage,
3. Remove the ATF pump driven gear shaft Measure
the thrust clearance of the ATF pump driven gear-
to-valve body.
ATF Pumo Drive/Driven Gear Thrust (Axiall Clearance:
Standard (N€w): 0.03 - 0.05 mm {0'001 - 0 002 inl
Service Limit: 0.07 mm 10.003 in)
ATF PUMPORIVEN GEAR
14-195
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Backlash Inspection
Place the differential assembly on V-blocks.
lnstall the driveshaft and intermediate shaft on the
differential assemblY.
Check the backlash of both pinion gears.
STANDARD: 0.05 - 0.15 mm (0.002 - 0.006 in)
OIFFEBENNAL ASSEMBLY
It the backlash is out of standard, replace the difter-
ential carrier.
1.
DIAL INDICATOR
Bearing Replacement
NOTE: Check bearings for wear and rough movement.
lf bearings are OK, removal is not required.
1. Remove the bearings using a bearing puller.
BEARING PULLER(Commercially available)
lnstall new
snown.
bearings using the sPecial tool
PRESS
14-223
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1.Install the suction pipe collar and the ATF magnet
{2WD) in the torque converter housing, if necessary.
lnstall the main seDarator Dlate and the two dowel
pins on the torque converter housing,
Install the ATF pump drive gear. ATF pump driven
gear, and ATF pump driven gear shaft on the torque
converter housing. Installthe ATF pump driven gear
with its grooved and chamfered side facing down.
ATF PUMPGEAR
ATF PUMP D{IVEf{GEAR SHAFT
ATF PUi'PORIVEN GEAR
Grooved and chamteredside faces separatorplate.
MAIN S€PAR/ATORPLATE
5.
o.
Loosely install the main valve body with five bolts.
Make sure the ATF pump drive gear rotates smoothly
in the normal operating direction, and the ATF pump
driven gear shaft moves smoothly in the axial and
normal operating directions.
Install the secondary valve body, separator plate,
and two dowel pins on the main valve body. Do not
installthe bolts.
Install the control shaft in the housing along with
the manual valve.
lnstall the detent arm and arm shaft in the main
valve body, then hook the detent arm spring to the
detent arm.
SEBVO SEPARATOR PLATE
7.
DETENT ARMSHAFT
OETENT ARM
CONTROLSHAFT
MANUAL VAIVE
OETENT ARM SPRING
onlv on the '98 - 00 models,
14-251
1l.
9.
8.
10.
Install the servo body and separator plate on the
secondary valve body ('97 - 98 models: seven bolts,'99 - 00 models: eight bolts).
lnstall the servo detent base ('97 - 98 models only)
and the ATF strainer ('97 - 98 models: two bolts,'99 -
00 models: one boltl.
Tighten the five bolts on the main valve body to 12
N'm (1.2 kgf.m, 8.7 lbf.ft).
Make sure the ATF pump drive gear and ATF pump
driven gear shaft move smoothly. lf they don't,
loosen the bolts on the main valve body, and disas-
semble the valve bodies. Realign the ATF pump driv-
en gear shaft and reassemble the valve bodies, then
retighten the bolts to 12 N.m (1.2 kgim, 8.7 lbf.ft).
CAUTION: Failure to align the ATF pump driven
gear shaft corroctly will rosult in a seizsd ATF pump
drive gear or ATF pump drivon gear shaft.
ATF PUMP ATFGEARDRIVE GEAR DBIVEN GEARSHAFT
Install the stator shaft and stop shaft
Install the bolts and the stop shaft bracket on the
secondary valve body, then tighten the bolts (three
bolts).
Install the torque converter check valve, cooler relief
valve, and valve springs in the regulator valve body,
then install the regulator valve body on the main
valve body {one boltl.
Install the lock-up valve body, separator plate, two
dowel pins and lubrication plate (eight bolts).
Installthe one ATF feed pipe in the main valve body,
the three ATF feed pipes in the secondary valve, the
three ATF feed pipes in the servo body and the one
ATF feed pipe in the lock-up valve body.
NOTE: lnstall the 105.8 mm ATF feed pipe with its
filter side away from the secondary valve body; the
filter is on the 105.8 mm ATF feed pipe, which is(cont'd)
13.
14.
15.
16.
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26. Connect the vehicle speed sensor (VSS). the coun-
tershaft speed sensor. and the A,/T gear position
switch connectors,
VEHICLE SPEEO
SPEED SENSOACO'{NECTOR
Connect the lock-up control solenoid valve connec-
tor, then install the harness clamp on the clamp
bracket.
HARNESS CI-AMP
27.
RADIATOR HOSECLAMP
TRANSMISSIONGROUND CAB1ITERMINAL
LOCK-UP OONTROLSOLENOID VALVECONNECTOR
6x1.0mm12 N'm (1.2 kgi.m,8.? tbtftl
28.
29.
Instail the transmission ground cable terminal on
the transmission hanger, and install the radiator
hose clamp on the transmission hanger,
Connect the starter cables to the starter, and install
the harness clamD on the clamD bracket. Make sure
the crimped side of the starter cable ring terminal is
facing out.
STARTEBCABLE
STARTER CAAtf,
Install the air cleaner housing assembly and the
intake air duct.
Refill the transmission with ATF (see page 14-161).
Connect the battery positive terminal and negative
terminal.
Set the parking brake, Start the engine, and shift the
transmission through all gears three times.
Check the shift cable adjustment (see page 14-271]-.
Check the tront wheel alignment and adjust it if
needed (see section 18).
Let the engine reach normal operating temperature
(the radiator fan comes on) with the transmission in
E or N position, then turn it off and check the ATF
level {see page 14-160).
Perform a road test (see page 14-157 and 14-158).
30.
31.
34.
CLAMP BRACKET
37.
14-263
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Shift Gable
Adjustment
SRS components are located in this area. Review the SRS
component locations, precautions, and procedures in the
SRS section (241 before performing repairs or service.
1. Release the steering tilt lever.
2. Remove the access cover from the lower column
cover.
LOCK PIN
AOJUSTINGnoo
ADJUSTER
7 N.m (0.7 kg{.m,5 tbf.ft)
3. Shift to E position. then remove the lock pin from
the cable adjuster.
K\ffi
/* 1 6-,>
snenrftc YTILT LEVER IACCESS COVER
14-272
'l 1.
4. Check that the hole in the cable adjuster is aligned
with the hole in the adjusting rod. There are two
holes in the cable adjuster. They are positioned 90"
apart to allow cable adjustments ln l/4 turn incre-
ments.
CABLE ADJUSTER
CablsToo Short
lf not perfectly aligned, loosen the locknut on the
shitt cable. and adjust as required.
Tighten the locknut.
Install the lock pin on the adjuster. lf you feel the
lock pin binding as you reinstall it, the cable is still
out of adjustment and must be readjusted.
Make sure the lock pin is seated securely in the
adjuster. Replace the lock pin if it does not snap
over the cable adjuster securely.
Move the shift lever to each gear, and verify that the
A/T gear position indicator follows the A"/T gear
position switch.
Start the engine, and check the shift lever in all
gears. lf any gear does not work properly, refer to
troubleshooting on page 14-'153 thru 14-156.
Insert the ignition key into the key cylinder on the
upper column cover, and verify that the shift lock
tever reteases.
CableToo LongExactAlignment
7.
a
10.
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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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Troubleshooting (Manual Transmissionl
When starting and accelerating in forward gears (4WD
mode)
1. Lift up the vehicle so all four wheels are off the
ground {see section 1)
3.
Start the engine, and let it run until it warms up (the
radiator fan comes on at least twlce).
With the engine at idle, shift into 1st gear and
release the clutch.
Apply the parking brake firmlY
. lf the engine stalls, the 4WD system is normal.
. lf the engine continues running, there is a prob-
lem in 4WD system. Check the differential fluid. lf
the differential fluid is normal, replace the torque
control ditferential case kit.
2.
When starting and accelerating in reverse gear (4WD
model
1. Lift up the vehicle so all four wheels are off the
ground (see section 1).
Start the engine, and let it run until it warms up (the
radiator fan comes on at least twice)
With the engine at idle, shift into reverse gear and
release the clutch.
Apply the parking brake firmlY
. lf the engine stalls, the 4WD system is normal.
. lf the engine continues running, there is a prob-
lem in 4WD system. Check the differential fluid lf
the differential fluid is normal, replace the torque
control differential case kit.
3.
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