1998 ACURA INTEGRA Service Repair Manual

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Rotor Slip Ring TestAlternator Brush Inspection
Separate the drive-end housing from the rear hous-
ing as described on page 23-l 1 1.
Separate the rear housing from the stator/rectifier
assembly by removing the four screws and the ter-
minal nut from the rear housing (see page 23-111).
Measure the length of the brushes with vernier
calrpers.
Alternator Brush Length:
O Standard (NEW)O Service Limit
19.0 mm (0.75 in)5.0 mm (0.20 in)
lf the brushes are less than the service limit, replace
them.
23-113
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MITSUBISHI:
1. Checkthe resistance between the slip rings.
There should be 1.8 - 3.0 ohms.
. lf resistance meets the specification, go to step 2,
. lf resistance does not meet the specification,
replace the alternator.
SLIP RII{GS
Check that there is no continuity between the slip
rings and the rotor or rotor shaft.
lf the rotor fails either continuity check, replace the
alternator.
Stator Test
1. Check that there is continuity between each pair of
leads.
co|LconE
Check that there is no continuity between each
and the coil core.
lf the coil core fails either continuity check, replace
the alternator.
ROIOR SHAFT
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Gharging System
Rear Bearing ReplacementAlternator Reassembly
MITSUBISHI:
1. Pull off the rear bearing.
Make sure the tips of the bearing puller jaws are
thin enough to fit between the bearing and the
slip rings.
Do not reuse the bearing.
BEARING PULITRSLIPRINGS (Commorciallyav6ilable)
Use a hand press to install the new bearing. Applypressure only on the inner race to avoid damaging
the bearing.
23-114
L : -
REAR BEARING
1.Push the brushes in, then insert a pin or drill bit(about 1.8 mm diameter)to hold them there.
ARUSHES
Heat the rear bearing seat in the rear housing as
described on page 23-12. After heating, continue
immediately with assembling before the rear bear-ing seat cools completely.
Put the rear housing/stator assembly and drive-end
housing/rotor assembly together, tighten the four
through bolts and pull out the pin.
THROUGH BOLT
*,
DRIVE.ENDHOUSI'{G/ROTORASSEMBLYREARSTATOR ASSEMSLY
After assembling the alternator. turn the pulley byhand to make sure the rotor rotates smoothlv and
without noise.
BRUSH AOCCSS HOI,"€

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Altelnator ttelr Inspecuon ano Aol
Detlection Method:
Apply a force ol 98 N (1 0 ksl, 22 lbl) and measure the
deflection between the alternator and the crankshaft
DUllev,
Defloction: 9- 11 mm (O.35-O.43 inl
NOTE: On a brand-new belt (one that has been run
for less than five minutes), the deflection should be
81881, Bl8Cl engine: 6 - 8 mm (0.23 - 0.32 inl,
818C5 engine: 7 - I mm (0.28 - 0.35 in) when first
measured, lf the belt is worn or damaged, replace it.
ALTERNATOR ADJUSTING NUT
24 N.m 12,4 kgl.m, 17 lbI'ftl
MOUNTINGNUT44 N.m (4.5 kgf.m,33 tbf.ft)
CRANKSHAFT PULLEY ALTERNATOR BELT
lf adiustment is necessary:
1. Loosen the alternator adjusting nut and mounting
nut.
2.
3.
Move the alternator to obtain the proper belt tension,
then retighten the adiusting nut and mounting nut
to the specified torques.
Recheck the dellection of the belt.
NOTE: lI necessary, adjust the P/S pump belt (see
section 17) and A/C compressor belt (see section
221.
Belt Tension Gauge Method:
Following the gauge manulacturer's instructions, attach
the belt tension gauge to the belt and measure the
tension.
Tension: 340-490 N {35-50 kgf,77-11O lbf)
NOTE: On a brand-new belt (one that has been run
for less than five minutes), tension should be
818B1, 818C1 engine: 690 - 880 N (70 - 90 kgf, 154 -
198 lbf), 818C5 engine: 540 - 740 N (55 - 75 kgf,
121 - 165 lbf) when first measured. lf the belt is
worn or damaged, replace it.
lf adiustment is necessary:
1. Loosen the alternator adjusting nut and mounting
nut.
2.
3.
Move the alternator to obtain the proper belt tension,
then retighten the adjusting nut and mounting nut
to the specified torques.
Recheck the tension ot the belt.
NOTE: It necessary, adjust the P/S pump belt (see
section 17) and A/C compressor belt (see section
22t.
ALTERNATOR ADJUSTING NUT24 N.m 12.4 kgf'm, 17 lbt.ftJ
BELT TENSION GAUGEoTJGG -0010r0A
23-115
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Fan Controls
RADIATORFANswtTcHTest, page 23-119
Component Location Index
For the A/C system, see section 22.
UNDER-HOODFUSE/RELAY BOX
CONDENSER FAN RELAYTest, page 23-69
RADIATOR FAN RELAYTest, page 23,69
FAN MOTORTest, page 23-119
TOR FAN MOTORTest, page 23,119
: lt tt tt tt l
c=, Ll L-t t lf l]-]l
f1 a l f -r a'r -
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a tL) | |Irt -
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Circuit Diagram (Without A/Cl
UNOEF.OASHFUSE,NELAY BOX
|-;ffi;I-YELf\-.rl]-t
BTK'EL -l
RAOIATORFANS\,YITCHfoN : above )(199'F (93'C)J
BLIVREO
BLK
I
G201G401
IGNITION SWITCH
N0.41 (lmAl No.42 (104)
RADIATORFANRELAY
23-117
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Fan Controls
IGN TION SWITCH
/ BAI \WHT/ELK +-WHTT rcotr
UNDER DASH
-
IFUSE/8ELAY 8ox I
|-;;;l IBL(rYEL t==rYEL-l
BLUiYEL
I
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Ith*-'T'o'oo'
8LU/RED
+A/C SYSTEM
.,'l'**u.'
UNDER.HOOD FUSEi NELAY BOX
No 41 (100A) No 42 (40A)
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Fan Motor Test
Disconnect the 2P connector from the fan motor.
Test the motor by connecting battery power to the
B terminal, and ground to the A termlnal.
lf the fan motor fails to run smoothly, replace it.
NOTE: The illustration shows the radiator fan.
Radiator Fan Switch Test
NOTE: Bleed air from the cooling system after installing
the radiator fan switch (see section 10)
1. Remove the radiator fan switch from the thermostat
housing.
2. Suspend the radiator fan switch in a container ol
coolanl as shown.
Heat the coolant and check engine coolant tempera
ture with a thermometer.
Check the continuity between the A and B terminals
according to the table:
23-119
Te rm Inal
Operatlon -------\
Tcmoerature ------
ON196. -203'F
(91" 95'C)
-5" 14.F i3" _8"C) ;*,*
than the temperature when
rt goes on.
SWITCH
OFF
B
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Gauge Assembly
Component Location Index
VEHICLE SPEED SENSOR {VSSITest, page 23-128Input Test, page 23-128Replacement, page 23-130
GAUGE ASSEMBLYGauge Location Index, page 23-12:|fndicator Location Index. page 23-121Terminal Location Index, page 23-121Eulb Location, pag6 23-122Disassembly, page 23-127Removal, paqe 23-126
FUEL GAUGE SENDING UNITTest, page 23-132Replacement, page 23-132
PARKING BRAKE SWNCHTest, page 23-135
ARAKE FLUID LEVEL SWITCHTest, page 23,135
ENGINE OIL PRESSURE SWITCHTest, p6ge 23-130
ENGINE COOLANT TEMPERATUFE IECTI GAUGESENOING UNITTest, page 23-134
23-120