TM 5-1940-277-34ENGINE ASSEMBLY TEST INSTRUCTIONS (Continued)LOCATIONITEMACTIONREMARKS3.Control consoleEngine stopPull out.handle4.Engine compartmentEngineUsing starter turnengine over 5 - 6revolutions. Readcompression ongage (1). Areading of over300 psi is satis-factory.5.Compression gagePressure releaseTurn counter-Use fingers.(1)screw (5)clockwise torelease pressureuntil gage readszero.NOTERepeat process for each cylinder.A pressure differential between cylinders of greater than 125 psiis unsatisfactory. Report to supervisor.Change 1 2-177 (2-178 Blank)
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