Quote:
Originally Posted by Simpler=Better
I imagine it's not a bad idea to clean everything. Think about how hot the injectors get, and the couple thousand of gallons of fuel that are pushed through in their lifetime. I imagine that some kind of glazing would build up at least.
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More than a couple of things cause the Injector Nozzle to wear out.
The little Pintel is being pushed back down by the Spring that is inside of the Injector and beats on the Metal seat when it stops.
Carbon particles from combustion and particles that make it through that 10 Nominal Micron Secondary Spin-on Filter get between the seating area and when the Pintel is pushed down smashes them into the seating area imbedding some of it into the Metal.
Not unlike fast moving pressurized Water erodes through solid Rock the Diesel Fuel erodes the Steel including the seating area.
Combustion errodes the exposed tip of the Injector Nozzle. If the errosion is bad enough it effects the Injector Spray pattern.
And added to the above stuff Heat and temp change stresses.
It is entirely amazing an Injector Nozzle survives as long as they do.