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 INSPECTION (Continued) 6. Inspect valve guides (18, 19). a. Look for cracks, galling, erosion, or scuffing. b. If any cracks, galling, erosion, or scuffing is found, replace guides. 7. Check guides against limits specified in the following table. a. If guides are out of limits, they must be replaced. 1 19 8 Point of Measurement Size and Fit of New Parts inches (mm) Wear Limits Inside diameter of intake valve guide 0.4995 (12.6873) 0.5005 (12.7127) 0.5035 (12.7889) Outside diameter of intake valve stem 0.4975 (12.6365) 0.4980 (12.6492) 0.4970 (12.6238) Fit of intake valve stem in guide 0.0015L (0.0381) 0.0030L (0.0762) 0.0065L (0.1651) Inside diameter of exhaust valve guide 0.5615 (14.2621) 0.5625 (14.2875) 0.5655 (14.3637) Outside diameter of exhaust valve stem 0.5570 (14.1478) 0.5580 (14.1732) 0.5565 (14.1351) Fit of exhaust valve stem in guide 0.0035L (0.0889) 0.0055L (0.1397) 0.0090L (0.2286) WP 0135 00-9