c. Testing TM 9-2815-237-34 2-36.  GLOW  PLUG  REPAIR This  task  covers: a. Cleaning c. Testing b. Inspection INITIAL  SETUP Tools Equipment Condition General  mechanic’s  tool  kit: Engine   disassembled automotive  (Appendix  E,  Item  1) (para.  2-15). Test  Equipment Multimeter  (Appendix  E,  Item  32) Mamual References TM 9-2815-237-34P into   subassemblies a.   Cleaning Clean  glow  plug  (1)  in  accordance  with  para.  2-9. b. Inspection NOTE For  general  inspection  instructions,  refer  to  para.  2-10. 1. Inspect glow plug (1) for thread damage. Replace if threads are damaged. 2. Inspect  glow  plug  (1)  for  damage.  Replace  if  damaged. 1. Using multimeter, check glow plug (1) internal resistance. Connect one test lead to terminal (2) and other  test  lead  to  threaded  area  (3). 2. Glow plug (1) internal resistance should have continuity. If not, replace glow plug (1). 2-141