Support injector upright in injector assembly fixture or in injector vise jaws. Disassemble injector filter
as illustrated in Figure 5-10.
Refer to Figure 5-10 and remove follower stop pin.
Table 5-2. Fuel Check Chart
Calibrator Fuel Output
Whenever a fuel injector is disassembled, discard filters and gaskets and replace them.
Disassemble injector follower, spring, and plunger as illustrated in Figure 5-10.
Reverse fuel injector in fixture and disassemble remaining injector components as illustrated in
Lift injector straight up, being careful not to dislodge the spray tip and valve parts. Place all
parts in a clean receptacle.
When an injector has been in service for some time, the spray tip, even though clean on the
outside, may not be pushed readily from nut with the fingers. If necessary, support nut on a wood block and tap tip
through nut. Use care not to damage spray tip. A section of brass rod or tube should be used to tap on spray tip.
5-34 Fuel injector cleaning, inspection and repair
Cleaning solvents are dangerous and can be toxic. Use only in well-ventilated areas. Observe all
precautions stated on the container, and never put solvents in unmarked containers.