TM 10-4320-309-14TM 4320-14/1REMOVAL:Do not touch tip of fuel injection nozzle as damage to equipment can oc-cur.a.Remove two hex head nuts (1) and retaining plate (2).NOTEIf the nozzle is tight, gently pry nozzle using a small pry bar. Be carefulnot to pry on the fuel return hose hub.b.Carefully remove fuel injection nozzle (3). Wrap it in clean cloth to protect the nozzle tip. Do not placenozzle tip directly on any dirty surface without protection.c.If nozzle gasket (4) and spacer (5) are not attached to nozzle at removal, screw M8 or M9 stud bolt(more than 4 inches [100 mm] long) into nozzle gasket, then remove stud bolt. The gasket and spacershould come out.INSTALLATION:Figure 4-12. Fuel Injection Nozzle Gasketa.Install new fuel injection nozzle gasket onto fuel injection nozzle before installing nozzle into cylinderbloc.kNOTEMake sure nozzle and sleeve surface is clean. Carbon deposits will buildupon nozzle in the form of flowers. Flowering lowers combustion perfor-mance significantly.b.Carefully insert the fuel injection nozzle into the cylinder block. Care must be taken in order to avoiddamage to nozzle gasket.c.Make sure fuel injection nozzle (3) positioning pin guides into positioning slot.d.Secure nozzle (3) to engine with two hex head nuts (1) and retaining plate (2). Torque to 6.0-7.0 ft-lb(80- 100 cm-kg).4-30
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