Leaky Injection lines

[Alwaysreadyrob]

is there anything you can put on the threads to prevent Injection lines from leaking ?

 

[Garbage_Mechan]

The threads do not make the seal. The end of the line has a slightly rounded cone shape formed on it. The injectors and pump outlet fittings are designed to contact that in a narrow band to seal high pressure impulses with a steel on steel contact.