1998 HONDA CR-V Ac compressor

Rear Damper
Disassembly/lnspection
Disassembly
L Compress the damper spring with the spring com-
pressor according to the manufacturer's instruc-
tions, then remove the self-locking nut. Do not com-
press the spring more than necessary to remove the
self-locking nut.
SELF-LOCKING NUT10 x 1.25 mmReplace.
STRUT SPRINGCOMPRESSOR:lCommercirlly avaihblo)BRANICKO I/N MSI-580Aor Mod6l/7200 or equivalent
2. Release the pressure from the spring compressor,
then disassemble the damper as shown on page 18-
25.
Inspection
1. Reassemble all parts, except the spring.
2. Push on the damper as shown.
3.
WOODEN ELOCK
Check for smooth operation through a full stroke,
both compression and extension. The damper
should move smoothly. lf it does not (no compres-
sion or no extension), the gas is leaking, and the
damper should be replaced.
Check for oil leaks, abnormal noises, or binding dur-
ino these tests.
4.
SELF-LOCKING NUT10 x 1.25 mm
OAMPERMOUNTINGWASHER
29 N.m {3.0 kgf.m, 22 lbf.ft)Beplace.
OAMPER MOUNTINGRUBBERCheck fordeteriorationano oamage.
DAMPER MOUNTINGCOLLAR
DAMPERMOUNTING BASE
DAMPER MOUNTINGRUBBERCheck fordeteriorationano oamage.
'"dd"^.s"'
//F,
DAMPERCheck for weakness,compressron
DUST COVER PLATE
DUST COVERCheck for bendingand damage.
SPRING MOUNTINGRUBBERCheck Ior deteriorationand damage.
BUMP STOPCheck for weaknessano oamage.
DUST COVEN BOOTCheck for deterioralionano oamage.
BUMP STOP PLATE
DAMPER
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Reassembly
1.Install the damper unit on a spring compressor,
Assemble the rear damper in reverse order of disas-
sembly except the damper mounting washer and
self-locking nut. Align the bottom of the damper
spring and the spring lower seat as shown.
2.
DAMPER MOUNNNG
STRUT SPBING COMPRESSOR:(Commorcislly !v.ilablelBRANICKC T/N MST.s8OA
3.Position the damper mounting base on the damper
unit as shown.
Compress the damper spring with the spring com-
pressor.
Install the damper mounting washer, and loosely
install a new self-locking nut.
SELF.LOCKING NUT10 x 1.25 mm29 N.m (3.0
Replace.
Hold the damper shaft with a hex wrench, and tight-
en the self-locking nut.
1.
lnstallation
Lower the rear suspenston,
damper. The spring stop on
should face rearward, and the
left damper should face forward.
and position the
the right damper
sprang stop on the
SPRING STOP
2. Loosely install the two flange nuts.
FLANGE NUTS10 x 1.25 mm . .:{9 N.m 15.0 kgf.m, 36 lbtft}- :',,-rigf't"n if'"""_nrr. in ----.-*
qla^ 7Step 7.
3. Loosely install the flange bolt.
FLANGE EOLT10 x 1.25 mm54 N.m 15.5 kgt.m,40 tbI.ft)
6.
7.
8.
Raise the rear suspension with a floor jack until the
vehicle just lifts off the safety stand.
@ The floor iack must be securely posi-
iioned or personal iniury may result.
Tighten the flange bolt.
Tighten the two flange nuts on the top of the
damper to the specified torque.
Install the damper cap and access panel.
Check the rear wheel alignment. and adjust if neces-
sary (see page 18-4).
18-25
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6.
7.
8.
lf the clearance between the gauge body and
adjusting nut is 0.4 mm (0.02 in), the pushrod-to-
piston clearance is 0 mm. However. if the clearance
between the gauge body and adjusting nut is 0 mm,
the pushrod-to-piston clearance is 0.4 mm (0.02 in)
or more. Therefore it must be adjusted and
recheck€d.
lf clearance is incorrect, loosen the star locknut, and
turn the adjuster in or out to adjust.
. Adjust the clearance while the specified vacuum
is applied to the booster.
. Hold the clevis while adjusting.
Tighten the star locknut securely.
Remove the special tool.
0 - 0.4 mm (0 - 0.02 inl
Adjust the pushrod length as shown if the
is removed,
booster
11610.5 mm{4.6 t 0.02 inl
PUSHRODLOCKNUT1.5N.m 11.5 kgf.m. '11 lbtfl)
Install the master cylinder (see page 19-13).
9.
STAR LOCKNUT22 N.m12.2 kgt m. 16 lbtftl
10.
(Check valve is built-in)
Brake Booster Inspection
FunctionalTest
1. With the engine stopped, press the brake pedal sev-
eral times to deplete the vacuum reservoir. thenpress the pedal hard, and hold it for 15 seconds. lf
the pedal sinks, either the master cylinder is
bypassing internally, or the brake system (master
cylinder, lines, modulator, proportioning valve. or
caliper) is leaking.
2. Start the engine with the pedal pressed. lf the pedal
sinks slightly. the vacuum booster is operating nor-
mally. lf the pedal height does not vary, the booster
or check valve is faultv.
3. With the engine running, press the brake pedal light-
ly. Apply just enough pressure to hold back auto-
matic transmission creep. lf the brake pedal sinks
more than 10 mm (3/8 in.) in three minutes, the mas-
ter cylinder is faulty. A slight change in pedal height
when the Ay'C compressor cycles on and off is nor-
mal. (The Ay'C compressor load changes the vacuum
available to the booster.)
Leak Test
1.Press the brake pedal with the engine running, then
stop the engine. lf the pedal height does not vary
while pressed for 30 seconds, the vacuum booster is
OK. lf the pedal rises, the booster is faulty.
With the engine stopped, press the brake pedal sev-
eral times using normal pressure. When the pedal is
first pressed. it should be low, On consecutive appli-
cations, the pedal height should gradually rise. lf thepedal position does not vary. check the booster
check valve.
Boostor Chock Valve Test
1. Disconnect the brake booster vacuum hose at the
booster.
2. Start the engine, and let it idle. There should be vac-
uum. lf no vacuum is available, the check valve is
not working properly. Replace the brake booster
vacuum hose and check valve. and retest.
ERAKE BOOSTERVACUUM HOSE
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Air Conditioning
Heater Control Panel
Reofacement ,.,...,,.,..,.,.,,22-46
Blower Unit
Replacement .................. 22-46
Overhaul ...........,,,., .......-.22-17
Evaporalor
ReDlacement ...,.,.,..,......,22-4A
Overhaul ................ .........22-19
A/C Filter
Replacement ..................22-50*Heater Unit
ReDfacement ..................22-50
Overhaul ..,.,..,.,...,.. .........22-52
Temperature Control
Adiustment ....................22-53
A/C Service Tips and Precauiions............-....-.... 22-54
A/C System Torque Specifications .................... 22-55
A/C System Service
Performance Test ......,...22-56
Pressure Test Chart .-.....22-5a
Recovery ..............,. ...-.-...22-59
Evacuation -...........-........22-60
Charging ................ .......-.22-61
Leak Test ........................22-61
Compressor
Repfacement ..........-.......22-62
flfustrated Index .....,.......22-64
Cfutch fnspection .........,.22-65
Cfutch Overhaul ............- 22-66
Thermaf Protector Rep|acement ................... 22-68
Refief Valve Replacement .............................. 22-68
A/C Comoressor Belt
Adiustment .................... 22-69
Condenser
Repfacement .,.....,,.,..,.,..22-70
'Read SRS precautions betore working in this area.
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Component Location
lndex
EVAPORATORReplacement, page 22-48Overhaul, page 22-49
SERVICE VALVEILOW-PRESSURE SIDE}
CONDENSERReplacement, page 22-70
A/C PRESSURE SWTTCHWhen the refrigorant pressure is below 200 kPa 12.0 kglc.r|r,28 psi) or abov€ 3,200 kPa (32 kgflcmr, 455 psi), the AJC pressureswitch opens the circuit to the Ay'C switch and stops the airconditioning to protect the compressor.
Replacement, page 22-62Clutch Inspection, page 22-65Clutch Overhaul, pago 22-66Thermal Protector Replacement, page 22-68Relief Valve Replacem€nt. page 22-68
SERVICE VALVEIHIGH-PRESSURE SIDEI
,
[\,
-il
(cont'd)
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SLOWER MOTOR RELAY,RADIATOR FAN RELAY.CONDENSER FAN REI-AY,COMPRESSOR CLUTCH RELAY(Located in the undeFhood fuse/relay box)Test. page 22-45
CONDENSER FAN 2P CONNECTOB
RADIATOR FAN2P CONNECTORA/C PRESSURE SWITCH2P CONNECTOR
COMPARTMENTWIRE HARNESS
{cont'd)
1P CONNECTOR
22-5
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Description
The air conditioner system removes heat from the passenger compartment by circulating refrigerant through the systemas shown below.
High'temperature/ High-temperature/
high-pressure gas h igh-pressure liquid
Suction and compression Radiation of heat
High-temperature/
high-pressu re liq uidr raps oeons,
and removes
motsture
More liquidified
row-pressure vapor
EVAPoRAToR (-l EXPANSToN vAL
SUCTION LINEtLow-PRESSURE S|OEt
LIOUID LINE
CONDENSER
coMpREssoR Il- coruoerusenl* necetve
Less moisturized
low-pressure vapor
Absorption of heat
DISCHARGE LINEIHIGH.PRESSURE SIDEI
This vehicle uses HFC-I34a (R-l34a) refrigerant which does not contain chlorofluorocarbons. Pay attention to the follow-ing service items:
. Do not mix refrigerants CFC-12 (R-12) and HFC-l34a (R-134a). They are not compatible.. Use only the recommended polyalkyleneglycol (PAG) refrigerant oil (SP-10) designed for the R-134a compressor.Intermixing the recommended (PAG) refrigerant oil with any other refrigerant oil will result in compressor failure.. Afl Ay'C system parts (compressor, discharge line. suction line, evaporator, condenser. receiver/dryer, expansion valve,O-rings for joints) have to be proper for refrigerant R-134a. Do not confuse with R-12 parts.
. Use a halogen gas leak detector designed for refrigerant R-134a.. R-12 and R-134a refrigerant servicing equipment are not interchangeable. Use only a recovery/recycling/charging stationthat is U.L.iisted and is certified to meet the requirements of SAE J2210 to service R-134a air conditioning system.. Always recover the refrigerant R-134a with an approved recovery/recycling/charging station before disconnecting anylVC fitting.
EVAPORAYOR
22-7
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Circuit Diagram
UNDER.DASHFUSEiRELAY BOXIGNIT ON SWITCHUNDEB HOOD FUSE/RELAY BOX
/6'^' F;t"^i IwHTBLK + **f ,o+trrffl- eLK/YEI f
\_-./
,JCPRESSURESWITCN2 /: 1Btu/RED -{.-!}- Btu/yvHT\,-/
BLU'ryVHTBLK
G401G402
RED
I,
mI d I CoMPRESSORI I I CLUTCH
LIl
I
CONDENSER
MOTOR
BLK/RED GRN WHT
I I,^,^,", I
L^"^,Y**t,|
T*.'1 Y
lllBLK BLK BLK
rtl
lll---
G201 G101 G202
COMPRESSOFCLUTCHRELAY
22-8
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