TM-9-2815-224-34-P

ENGINE, DIESEL:8-CYLINDER TURBOCHARGED, DETROIT DIESEL CORPORATION MODEL 8V92TA

DIRECT SUPPORT AND GENERAL SUPPORT MAINTENACE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST

JANUARY 1988

TM-9-2815-224-34-P - Page 129 of 554

TM9-2815-224-34&P

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Crankshaft Maintenance Instructions (Cont)

Inspect crankshaft connecting rod

journals (4) and main bearing

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journals (5) for deep scratches.

Replace crankshaft (1) if damaged.

Inspect connecting rod journals (4)

and main bearing journals (5) for

signs of cracks at connecting rod

journal oil holes (6) or at joining

points (7) of connecting rod journal

and main bearing journals. Replace

crankshaft (1) if damaged,

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Inspect crankshaft keyways (8) for cracks or damage. Replace crankshaft (1) if damaged.

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Inspect rear oil seal (9) contact surface for deep scratching. If scratches cannot be smoothed out

with crocus cloth, replace crankshaft (1).

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Inspect crankshaft thrust surfaces (10) for grooving. Replace crankshaft (1) if deep grooves have

been scratched in thrust surfaces.

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Inspect timing gear (11) for chipped teeth. Replace if damaged.

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Measure and note thickness of two thrustwashers (12).

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