CLEARANCES

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TM-9-2815-220-24 Maintenance Manual for AVDS-1790 2CA 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

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THEORY OF OPERATION

TM 9-2815-220-24

ENGINE SPECIFICATIONS, CLEARANCES, SHIPPING CONTAINER

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ENGINE, Settings (Continued)

Valves:

Lift.................................................................................................................................. 0.460 inch

Clearance (cold engine):

Exhaust ...................................................................................................................... 0.025 inch

Intake......................................................................................................................... 0.010 inch

Fuel injection metering pump timing:

Static setting with injection advance in fuel retarded position ............................. 26 degrees BTC

CLEARANCES

Turbocharger Clearances:

1. Turbine and compressor wheel end play ................................................... . 0.0015 0.0060 inch

2. Compressor wheel back clearance ............................................................. 0.0190 0.0220 inch

3. Compressor wheel to cover clearance ........................................................ 0.0140 0.0160 inch

Miscellaneous Clearances:

1. Clearance on thrust bearing No. 4 main

(between bearing & crankcase) .................................................................... 0.004 0.008 inch

2. Side clearance limits of connecting rods on crankshaft ................................. 0.009 0.017 inch

3. Crankshaft end-play limits ............................................................................. 0.007 0.015 inch

4. Flywheel run-out limits .................................................................................. 0.000 0.015 inch

5. Side clearance between rocker arms & rocker covers: Exhaust .................... 0.006 0.014 inch

Intake...................... 0.006 0.014 inch

6. Valve clearance (right & left side) ................................ Intake set at ......................... 0.010 inch

Exhaust set at....................... 0.025 inch

7. Fan blade tip clearance in fan housing

............................. 0.062 inch minimum

SHIPPING/STORAGE CONTAINER

Accommodated equipment identifying number ................................. AVDS-1790-2 Model Number

End item identification .......................................................... shipping and storage container, engine

Material ......................................................................................................................................... steel

Mounting surface plane ........................................................................................................... parallel

Overall height ........................................................................................................ 5.145 feet nominal

Overall length ........................................................................................................ 7.459 feet nominal

Overall width ......................................................................................................... 7.459 feet nominal

Shape.................................................................................................................................. rectangular

Storage/shipment condition .................................................................................. hermetically sealed

Surface treatment ......................................................................................................................enamel

END OF WORK PACKAGE

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