Quote:
Originally Posted by kahlil88
Are these the NA33X/NA30X or NA34X/NA31X injectors?
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NA34X/NA31X are for the Turbo Diesel
NA33X/NA30X are for the Non-Turbo Diesels
The "X" indicates that they are rebuilt.
Why did the change the Number on both of the turbo and non-turbo Injectors????
I really don't know but My best guess is that they changed the Numbers when they started using the Indian made Bosch Nozzles during the Rebuild.
The older or newer style Injectors can be built into turbo or non-turbo Injectors and they use a Plastic Band to cover up the original stamping on the Injectors and that Plastic band is going to have the NA**X number on it.
The original stamping numbers are coverd up so that they can randomly use the non-turbo or turbo upper Injector Bodies to make any Injector they want.
As far as the Older and new style Bodies as long as they are used as complete assemblies and are set to the Proper Opening/Pop Pressure they are interchangable with the New style Injectors and can be mixed in the same set.
The above is not to be confused with the even older type that does not have the little Fuel Return Hose Nipples.