Yes, injector nozzles cracking is usually caused by nothing more than the EDM process itself.
Look at the stats of cracked bone stock nozzles.....
Swamps has a couple different Extrude Hone sizes to choose from produced directly from Brand New 7 hole nozzles. I believe you can still get the size I run although they usually sell some that flow slightly more than mine do.
Or you can get a set of new nozzles and send them directly to EH or your abrasive machining company of choice. Or send some good stock used nozzles. Mine were just a set I snagged out of the attic space at swamps taken off of someone's A-codes long ago. Balance like a charm.
And no, you do not have to completely disassemble the injector to swap nozzle assemblies. But you will need some general injector eticate to be follwed, such as STRENGENTLY keeping the nozzle and needle together between nozzle assemblies and if you ever even for a second forget which needle went with wich nozzle......trash them....
Or just send you injectors to swamps or another injection shop and they will handle the meticulous work for you....as well as actually flow them to ensure they all balance for all other reasons maybe not having to do directly with the nozzles.
Good Luck.
Look at the stats of cracked bone stock nozzles.....
Swamps has a couple different Extrude Hone sizes to choose from produced directly from Brand New 7 hole nozzles. I believe you can still get the size I run although they usually sell some that flow slightly more than mine do.
Or you can get a set of new nozzles and send them directly to EH or your abrasive machining company of choice. Or send some good stock used nozzles. Mine were just a set I snagged out of the attic space at swamps taken off of someone's A-codes long ago. Balance like a charm.
And no, you do not have to completely disassemble the injector to swap nozzle assemblies. But you will need some general injector eticate to be follwed, such as STRENGENTLY keeping the nozzle and needle together between nozzle assemblies and if you ever even for a second forget which needle went with wich nozzle......trash them....
Or just send you injectors to swamps or another injection shop and they will handle the meticulous work for you....as well as actually flow them to ensure they all balance for all other reasons maybe not having to do directly with the nozzles.
Good Luck.
