Injector 1. FAIR - but weak
Injector 2. BAD - split spray pattern
Injector 3. BAD - split spray pattern
Injector 4. BAD - jetting on left side
Injector 5. GOOD (AIS Refurbished)
Injector 6. BAD - feathering at top of spray
The Fuel Delivery and the Fuel Distribution is simultaneously measured and visually examined.
Uneven fuel distribution leads to poor performance and engine damage.
In the chart below are examples of common spray test results.
Injector 1. FAIR - but weak
Injector 2. BAD - split spray pattern
Injector 3. BAD - split spray pattern
Injector 4. BAD - jetting on left side
Injector 5. GOOD (AIS Refurbished)
Injector 6. BAD - feathering at top of spray