TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
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TM 9-2815-220-24 CYLINDER ASSEMBLY REPAIR 0135 00 REPAIR (Continued) 3. Check valve guide bores in cylinder assembly (1). If not within the following limits, cylinder assembly (1) must be replaced. 1 Point of Measurement Size and Fit of New Parts inches (mm) Wear Limits Outside diameter of intake valve guide 0.6890 (17.5006) 0.6895 (17.5133) None Inside diameter of intake valve guide bore in cylinder head 0.6870 (17.4498) 0.6880 (17.4752) None Fit of intake valve guide in bore 0.0010T (0.0254) 0.0025T (0.0635) None Outside diameter of exhaust valve guide 0.7525 (19.1135) 0.7530 (19.1262) None Inside diameter of exhaust valve guide bore in cylinder 0.7495 (19.0373) 0.7505 (19.0627) None Fit of exhaust valve guide in bore 0.0020T (0.0508) 0.0035T (0.0889) None WARNING Wear gloves when handling heated or chilled parts. 4. Heat cylinder assembly to 350 °F (176 °C) maximum and chill valve guides for 1 hour minimum in dry ice or 3 hours minimum at -40 °F (-40 °C) before installing. NOTE The intake and exhaust valve guides are installed in the cylinder in the same manner. A separate replacer is used for each. Replacer 10883052 (item 100, WP 0176) is used for intake valve guides, and 10883053 (item 99, WP 0176) is used for exhaust. WP 0135 00-12