TM 5-4320-302-146-9. VALVES, VALVE GUIDES, AND VALVE SEATS (CONT)Location/ItemAction RemarksINSTALLATION/REPLACEMENTNOTEIf both valve seat inserts and valve guides need to be replaced,inserts should be replaced at the same time as the guides as longas the head is heated to 428°F (220°C). Follow procedure describedbelow.10. Valve guidesInstall new valve guides with snap rings installed.with snapLightly press into heated cylinder heads withringschamfered ends toward top of cylinder head.6-55
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