Acura Integra 1998 Service Manual page 1166

Rectifier
Test
DENSO:
NOTE: The diodes are designed to allow current to pass
in one direction while blocking it in the opposite direc-
tion. Each diode must be tested tor continuity in both
directions with an ohmmeter that has diode checking
capability. Since the alternator rectifier is made up ot
eight diodes (four pairs), there are a total of 16 checks.
'1.
Check for continuity in each direction between the
B and P terminals, and between the E (ground) and
P terminals of each diode pair. All diodes should have
continuity in only one direction.
lf any of the eight diodes fails, replace the recti{ier
assembly. iDiodes are not available separately.)
2 .
Alternator
Brush Inspection
l .
Remove the end cover, then take out the brush
holder by removing its two screws.
Measure the length of the brushes with a vernier
caliper.
Altelnator Brush Length:
Standard: 1O.5 mm {O.41 in}
Service Limit: 1.5 mm (0.06 in)
2 .
lf the brushes are less than the service limit, replace
the brush holder assembly.
VERNIER CALIPER
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