Honda Civic Service Manual page 1595

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Rotor Slip Ring Test
1. Check the resistance betlveen the slip rings
There should be 1 8 - 3 0 ohms
.
lf resistance meets the specification, go to step 2.
.
l f r e s i s t a n c e d o e s n o t m e e t t h e s p e c i f i c a t i o n ,
reolace the alternator'
SLIP BINGS
2.
Check that there is no continuity between the slip
rings and the rotor or rotor shaft.
3.
lf the rotor fails either continuity check, replace the
alternator.
Stator Test
'1. Check that there is continuity between each pair of
leads.
CORE
Check that there is no continuity between each lead
and the coil core.
lf the coil fails either continuity check, replace the
alternator.
ROTOR SHAFT
LEADS
1 .
Alternator Brush InsPection
Separate the drive-end housing from the rear hous-
ing as described on page 23-121
Separate the rear housing from the stator/rectifier
assembly by removing the four screws and the ter-
minal nutfrom the rear housing {see page 23-121}
l v l e a s u r e t h e l e n g t h o f t h e b r u s h e s w i t h v e r n r e r
calrpers.
Alternator Brush Length:
O Standard {NEW}
@ Service Limit
1 9 . 0 m m ( 0 . 7 5 i n )
1
5 . 0 m m ( 0 2 0 i n )
lf the brushes are less than the service limit, replace
t h e m .
23-123