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TM 9-2815-237-34 Section  III.  TROUBLESHOOTING 2-6.   GENERAL Information in this section is for use of support maintenance personnel in conjunction with, and as a supplement to, troubleshooting procedures in TM 9-2320-280-20 and TM 9-2320-280-34. 2-7.   ENGINE   TROUBLESHOOTING CAUTION Operation of a deadlined engine without preliminary inspection will  cause  further  damage. Information to be used for troubleshooting the engine is contained in TM 9-2320-280-20 and TM  9-2320-280-34. a. Excessive oil consumption is generally caused by leaky gaskets or loose line connections. b. Always check the easiest and most obvious things first. This simple rule saves time and trouble. c. Double check before disassembly. The source of most engine problems can be traced to more than one part  in  a  system.  For  example: (1) Excessive fuel consumption may not be caused by the fuel pump alone. Instead, the trouble could be  a  clogged  air  cleaner,  or  a  restricted  exhaust  passage  causing  severe  back  pressure. (2) Engines very often are disassembled in search of a complaint and the real evidence of the problem is  destroyed.  Check  again  to  be  sure  an  easier  solution  to  the  problem  has  not  been  overlooked. d. Before correcting a problem, diagnose the cause of the problem. Do not allow the same failure to occur  again. 2-2


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