TM 9-2815-225-34&P 3-35.  CYLINDER HEAD AND VALVE REPAIR (Contd) LOCATION/ITEM ACTION REMARKS b.  Cleaning WARNING Approved solvents may be flammable and will not be used near open flame.  Use only in well-ventilated area.  Failure to comply may result in injury to personnel. 11.      Cylinder head assembly (1)   a.  Clean by submerging in Circulate solvent to increase solvent SD-3. effectiveness on salt, lime deposits, and grease, etc. b.  Clean internal passages and Use fuel passage cleaning brush flush passages with solvent SD-3 (ST-876).  Ensure lubricating oil to remove deposits. passages are open and clean. WARNING Compressed air used for cleaning purposes will not exceed 30 psi (207 kPa).  Use only with effective chip guarding and personal protective equipment goggles or shield, gloves, etc. Failure to comply may result in injury to personnel. c.  Dry with compressed air. 12.     All other parts Clean by submerging in solvent Refer to para. 3-6 for additional SD-3 and dry with compressed cleaning instructions. air. 3-116