FUEL INJECTOR REPAIR (Contd)
a. Disassembly (Contd)
Top-stop adapter (7) and
cup retainer (11)
Do not pry against machined surface when removing two roll pins. Damage to machine
surface may result
Do not lose check ball.
Barrel (9), injector cup (10),
check ball (12), and two roll
Do not use drills or other instruments to clean cup holes that will alter size of holes. Wires
may be used if a smaller size wire is used than spray hole. Do not use a wire brush or
crocus cloth to clean cup tip area, or damage to cup tip may result.
Most injector failures occur because of dirt. Clean parts thoroughly before assembly.
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.
Injector spring (6), top-stop
Soak parts in a suitable cleaning
locknut (4), top-stop adapter
solvent, such as SD-3, to remove
(7), and cup retainer (11)
carbon varnish. This may require
several hours of soaking.
Neutralize solvent after cleaning
by dipping parts in mineral spir-