Table 4-3. Troubleshooting Chart (Continued)
TEST OR INSPECTION
NOZZLE PRESSURE BELOW 90 PSI (Continued)
b. If nozzle assembly parts listed above do not leak, go to Step 4.
If nozzle assembly parts listed above are loose, tighten them. If they still leak, go to Step 2d.
d. Shut engine OFF before replacing any nozzle assembly parts.
Figure 4-66. Nozzle Assembly
e. If nozzle assembly parts listed above still leak, remove them and inspect them.
If machined surfaces are nicked or scratched, replace that part and go to Step 2f.
If tefIon gasket is broken or squeezed out of shape, replace it and go to Step 2f.
If O-rings are cut or cracked, replace them and go to Step 2f.
After replacing any parts above, start engine and check pressure again.
If pressure is 90-100 psi, the problem is solved.
If pressure is still less than 90 psi, go to Step 3.