Spray Pattern Test

This nozzle features a longer nozzle overlap, greater pintle to body clearance and greater needle to body clearance. This assembly also features an internal wave washer between the nozzle nut and nozzle. Because of these features, testing is difficult. A pop tester will not deliver fuel with the velocity necessary to obtain proper spray pattern analysis. Based on the above, this type nozzle should not be rejected for spray pattern.