Service Manual

ISB, ISBe and QSB (Common Rail [...] Flexplate
Section 16 - Mounting Adaptations - Group 16 Page 16-15
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Electrical
An electrical issue can typically be identified by seeing
damage to the ring gear of the flywheel 360 degrees
around the circumference of the ring gear (commonly
called 360 degree milling). The following can be causes
for electrical issues:
1 The operator is attempting to start engine while engine
is already running. Check if a starter lockout feature is
available through the OEM (activated with the
INSITE™ electronic service tool) or the starting motor
manufacturer.
2 The key switch is causing intermittent starting motor
engagement when the engine is running. Inspect the
key switch. Refer to Procedure 013-020 (Starter
Motor) in Section 13.
3 The orientation of the starter relay, so that the direction
of the pull contact is in the direction of the vehicle's
travel. This results in intermittent starter motor
engagement when the engine is running. Relocate the
starter relay. Refer to the original equipment
manufacturer's specifications.
4 Intermittent starter motor wiring issues. Refer to the
original equipment manufacturer's specifications.
Remove
Remove the flexplate capscrews and flexplate.
NOTE: Some flexplates require mounting plates and/or
adapters. It may be necessary to remove any mounting
plates and/or adapters prior to or with the flexplate. Make
sure to note the location of any mounting plates and/or
adapters for later installation.
Remove the nine flex-coupling guard capscrews, harness
connector, and the flex-coupling guard (if equipped).