Detroit Diesel 4000 Series, Service Manual, Page: 1232 / 2706

SERIES 4000 12/16V SERVICE MANUAL
C 172.05.08 M – INSPECTION AND REPAIR
NOTE:
During cleaning operations, ensure that no moisture can penetrate inner parts of solenoid
switch. If moistures penetrates solenoid switch, it results in corrosion and circuit breaks.
Perform the following steps to inspect and repair the marine starter:
1. Use OEM documentation to inspect and repair the individual parts of the starter.
2. Visually inspect tooth flanks of pinion for wear, indentations and chipping.
[a] If tooth flanks of pinion are worn, indented or chipped, recondition as necessary.
[b] If damage is beyond repair, replace as necessary.
[c] If tooth flanks of pinion are not worn, indented or chipped, continue inspection.
3. Visually inspect nuts and studs for damage.
[a] If nuts or studs are damaged, replace as necessary.
[b] If nuts or studs are not damaged, continue inspection.
4. Inspect threads for ease of movement.
[a] If threads do not show ease of movement, replace as necessary.
[b] If threads show ease of movement, continue inspection.
5. Visually inspect mating surface on the flywheel housing for wear.
[a] If mating surface on flywheel is worn, smooth with emery cloth or oilstone as
necessary.
[b] If damage is beyond repair, continue inspection.
[c] If mating surface on flywheel is not worn, continue inspection.
6. Visually inspect threads for damage or wear.
[a] If threads are damaged or worn, rechase as necessary.
[b] If damage is beyond repair, replace as necessary.
[c] If threads are not damaged or worn, continue inspection.
All information subject to change without notice.
C -1086
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