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Page Title: Exhaust Valves
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TM 5-4210-220-34 2-19. ENGINE - Continued 2-19.7 Exhaust Valves. This task covers: a. Adjustment b. Removal c. Inspection d. Installation e. Repair TOOLS Top Exhaust System Elbow Removed Shop Equipment, Automotive (see TM 5-4210-220-12) Maintenance and Repair, Both Rocker Covers Removed (see para.  2-19.3) NSN 4910-00-754-0705 J22582 Engine Barring Tool MATERIALS/PARTS J7455 Valve/Spring Removal Tool 10, Appendix B Dry Cleaning Solvent J9708-01 Feeler Gage 15, Appendix B Gear Oil J22738-02 Spring Tester 17, Appendix B Engine Oil J5437 Valve Guide Brush 18, Appendix B Masking Tape J8932-01 Fuel Pipe Socket 5149510 Rocker Cover Gasket J25076-B Spring Checking Gage 5147347 Exhaust Valve Spring 8921209 Exhaust Valve Guide Seal 5149041 Exhaust Valve Kit EQUIPMENT CONDITION Main Engine Shutdown (see TM 5-4210-220-12) APU Shutdown (see TM 5-4210-220-12) PERSONNEL REQUIRED - 2 Batteries Disconnected (TM 5-4210-220-12) LH and RH Engine Covers Removed (see TM 5-4210-220-12) ADJUSTMENT NOTE This is the first task in any tune-up. Exhaust valve bridge is adjusted during valve installation; the push rod only is adjusted after the engine is rebuilt.  Rocker must be removed as detailed in para.  2-19.3. (1)     Cover any drain cavities in cylinder head to prevent foreign material entering. (2)     Allow  engine  to  cool  completely;  must  be less than 100 deg.  F (38 deg.  C). (3)     Ensure  governor  speed  control  lever  is  in the idle position and stop lever is in the stop position.  This   is   the   normal   setting   when engine is shutdown. (4)     Remove   starter   motor   and   install   barring tool   J22582   (see   TM   5-4210-220-12   for starter motor removal) or barr engine using starter  motor  or  wrench  on  the  crankshaft pulley  bolt  (if  using  wrench,  do  not  rotate engine  in  left-hand  direction  because  this may loosen the bolt). 2-204

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