TM  10-3930-638-24&P 3-6.   FUEL   SYSTEM   MAINTENANCE   (cont) b. Fuel Injector (cent) STEP LOCATION ITEM ACTION REMARKS CLEANING   (cont) 3 Cylinder  head  fuel Clean Use bore cleaning tool as shown. injector  bore Gradually turn tool into bore using clock- wise rotation; then remove tool and blow out bore with compressed air INSTALLATION 4 Cylinder  head, a. Fuel injector (3) Install Into bore, using a twisting motion fuel injector bore b. Spacer (2) and clamp Position On fuel injector lock plate assembly  (1) c.  Clamp  assembly  (1) Tighten Tighten bolt to 18-22 pounds foot torque 5 Fuel  injector Leak-off and injection Connect  and Para 3-6a tubes tighten 3-78