That's the problem I'm trying to solve .are very difficult to achieve a good finish with.
Thank you for the advice! It is definitely an option if I cannot make needles and nozzles airtightMinh
I refer to my original comments re injectors and the difficulty of getting a good seal with the injector nozzel. I would suggest that you spend a few dollars typically $10 Au and purchase an injector nozzel via ebay of the pintle type or see if you can scrounge one from an injector repair shop. The pintle pin can be used on its own with your injector body.
The pin has been ground to a level that you will never achieve and I have found them to work very well op to 2000 psi.
I'll look for the needle, but that's faulty I'll take a picture for you, it's the same.Please - - - - I'd like to see a pic of the injector spray pattern . . .
Thanks for your advice and warning !Please do not be tempted to put a finger over or near the spray pattern fuel will enter your body, worst case it can kill. I am no expert but I did spend 40 yrs in diesel fuel injection manufacture, and this is the first thing you are told.
"getting it to open and close quick enough" : I am learning about thisOne problem you will have is getting it to open and close quick enough, hence the exremmely high pressures (more than stated here) and high spring pressure. iIts one of the reasons why diesel went electronic (common rail etc) where injection is controlled by actuators. Its also easier to tinker with if its not producing the desired results. Sorry to waffle.
No, no no no, Minh Tahn was not chastising--please let it go. He was explainng that YOU do not needs to be an expert in order for him to take your hint and warning. That is, anybody giving good information on safety is accepted.Lucas diesel systems which became Lucas Varity then Delphi the last two being American.
In minh-thanhs last post I don't understand the comment in bold, if it is to chastise for making a comment that was made with good intentions then it could have been better. this is a forum for helping each othe,r whether the advice be good bad or indifferent and comments in reply should at least be civil. I'm getting a bit sensitive in my dottage (my attempt at humour}.