D E T R O I T DIESEL 53
7.0 Trouble Shooting
T R O U B L E SHOOTING
CHECKING ENGINE ELECTRICAL GENERATING SYSTEM
4. Low battery and low or no charging rate--indicats
In analyzing generator-regulator operation, check for
improper or no regulator operation--and may be due
one of the five following conditions.
to loose connections, damaged wires. low voltage or
1 .A fully charged battery and low, charging rare -- this
current regulator setting, oxidized contact points or a
indicates normal generator-regulator operation.
defective generator.
2. Low battery and high charging rate--indicates normal
5. Excessive arcing at contact porn/s--may be due to
generator-regulator operation.
oxidized or misaligned contact points, defective
regulator winding, poor cable connections or other
3. A fully charged battery and a high charging rate--this
causes.
indicate; the voltage regulator is not reducing the
If one of the latter three condittons exists, refer to the
generator output is it should and will damage the
"Delco-Remy" electrical equipment operation and
battery--and may be cauced by Improper voltage
maintenance handbooks DR 324, DR 324A and DR
regulator setting, defective regulator unit, short circuit
324Sr for correction of the problems These manuals
or poor connections in the generator or regulator
may be obtained from United Motors Service.
wiring or high battery temperature.
SPECIFICATIONS
STANDARD BOLT AND NUT TORQUE SPECIFICATIONS
TORQUE
THREAD
THREAD
TORQUE
(Ib.ft)
SIZE
SIZE
(lb-ft)
.....................
1/4 -20
......................
7.9
9/16-12
90-100
1/4 -28
9/16-18
8-10
107-117
......................
.....................
5/16-18
13-17
5/8 -11
137-147
......................
.......................
......................
5/16.24
15.19
5/8 -18
168-178
......................
3/8 -16
30-35
3/4 .10
240-250
......................
......................
3/8 -24
35-39
3/4 -16
........................
290-300
....................
7/16-14
.......................
7/8 -9
46-50
410-420
.....................
7/16-20
57-61
7/8 -14
............................
475-485
...................
1/2 -13
71-75
1 -8
580-590
..........................
...................
1/2 -20
......................
83-93
1 -14
685-695
........................
EXCEPTIONS TO STANDARD BOLT AND NUT TORQUE SPECIFICATIONS
THREAD
APPLICATION
TORQUE
SIZE
(lb-ft)
Tachometer drive cover bolt
7/16 -14
30-35
Tachometer drive cover bolt
1/2 -13
30.35
Tachometer drive shaft (blower)
1/2 -20
55.65
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