Cylinder head and Valves/Special tools RG5100 -UN-23AUG88 Tap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . JDG680 Used to restore threaded holes in cylinder block for cylinder head cap screws. RG,JDG680 -19-02APR90 Nozzle Puller Adapter . . . . . . . . . . . . . . . . . JDG716 Use with JDE38-2 and JDE38-3 to pull Stanadyne 9.5 mm injection nozzles. CD30338 -UN-07MAR95 05 3 CD,JDG716 -19-12NOV92 CTM3274 (01JUL99) 05-3 Saran Liter Engines 060799 PN=40