Gentlemen,
I do not know the amount of miles that the highest mileage BBi’s in the field have run at this time but they have been run in the US since 2011 and Europe before that. But I do know that our nozzles ran about a Billion injection cycles on the test bench which would mean about 600K Miles if they were run on the road in a Dodge Ram. As to mentioning the 150 K miles, there will not be any problems after 150,000 runtime in a truck. If one is wondering if BBi Injectors would change their spray pattern over the miles, No! Coking of an injector nozzle is always possible and does depend on what temps the engine is running and which fuel is used. a short haul truck more so than a long distance runner, but it will not change the spray pattern, only nozzle flow a bit. Cavitation erosion is normally only a problem of endurance tests on an injector test bench caused by too low of back pressures outside the nozzle, but sometimes it is seen also on trucks after a very high running time. 500,000 miles or more but will for certain look completely different than what you see on the examples, Brand X and Brand Y.
As to the miles and age of David’s injectors. They were fairly new and low mileage pieces. (2 Micron filtration) If you want to go back and re-read old history here is some reading material for you. Enjoy!
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The X and Y Injectors in the “Analysis” Report were low mileage injectors. Less than 1,000 miles on all.
So, is it possible that one could correctly believe that the running time on these brand x and brand y injectors is contributing to their incorrect spray patterns, if indeed they did have many many more miles on them than they do? The answer is NO.
The only 2 possible failures to the nozzle spray holes/spray pattern are, 1.Cavitation erosion . 2. Coking of the nozzle, which was removed during inspection by ultrasonic cleaning, and coking will only reduce the nozzle flow and not really the spray geometry. Particles would destroy the valve seat of the injector and the nozzle needle seat much earlier than one would be able to see the smallest deformation of the nozzle holes. As stated, these are low mileage injectors and the spray pattern issues are not time or mileage related, but by issues that came about at the time of manufacturing.