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 204 of 554

TM 9-2815-224-34&P

Valve Mechanism Maintenance Instructions (Cont)

7-9. CAMSHAFT REMOVAL/REPAIR/INSTALLATION (CONT).

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

(15)

(16)

(17)

(18)

(19)

TA357703

FRONT END

BEARING

NOTE

Both ends of lockring must cover split line of bearing.

Measure and note diameters of three bearing journals (3). Replace camshaft (1) if any diameter is

less than 1.4980 in. (38.049 mm).

Measure and note diameters of two end bearing journals (4). Replace camshaft (1) if any

diameter is less than 1.4960 in. (37.998 mm).

Measure and note inside diameter of four end bearing bushings (5).

Put lower half (6) of three intermediate bearings (7) together with top half (8).

Install six lockrings (9) over three intermediate bearings (7).

Measure and note inside diameter of three intermediate bearings (7).

Take measurement recorded in step (7) and subtract from measurement recorded in step

(12).

Total difference may not exceed 0.009 in. (0.23 mm).

Replace three intermediate bearings (7) if clearance exceeds limit.

Measure thickness of four rear end bearing thrust washers (10) and replace if less than 0.119 in.

(3.02 mm).

Take measurement recorded in step (8) and subtract it from measurement recorded in step (9).

Total difference may not exceed 0.006 in. (0. 15 mm).

Replace front or rear end bearing bushings if clearance exceeds limits (para 7-10).

Inspect spacers and oil seal. Replace if damaged.

Inspect two camshaft gears for worn or damaged teeth. Replace if damaged.

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