185 #6 injector line

I rebuilt the pump on my 185 and was putting it back on and somehow managed to damage the threads on the injector nut for #6 injector, the threads crossed. Is the line still available? Any suggestions to fix/rethread injector nut or could you just get a new nut and install on line somehow?
Thanks in advance

Shortening the line will cause the timing of the injector to be off. best to find the line...

The line is available, but the nut and ferrule is also available seperate, how would you go about removing and installing the new nut and ferrule?

Well that's what I thought too but a long time ago on this forum it was said that there is some expansion of line and actual compression of liquid to effect "perfect ".....

It's been proven the length of the line does change timing. Not sure that so little removed for a new nut and ferrule would make much of a difference. The line length is all the same on any diesel engine made in at least the past 50 or 60 years. That's why the lines are routed the way they are. They are all the same, not like a spark plug wire where you have various lengths just to get the job done. Go look at any diesel engine you have and take the time to measure each line.

Edited by Lonn - 17 Jul 2020 at 1:52pm

Fuel delivery is in cc per stroke, timing is the point of presentation of fuel pressure, if timing varied more than a degree would be rough enough and smoky enough to cause big problems, it is not.  The theory was the line swelled at each impulse, could be a truth but will not vary more than a % of a cc, where with a full fuel line as are designed, as soon as 2000 psi enters at one end the same pressure releases at the other end.  All old wives tales and antique engineering.  The lines do not vacate at each delivery, they retain a limited amount of residual pressure during normal running.  

Edited by DMiller - 19 Jul 2020 at 7:46am

I believe injectorpumpEd had a post on this very question, not too long ago.  Maybe someone better than me at searching can find it...

The length and Turns in Injector tubing was put to me by a Mack Engineer.  The length is a calculated distance to allow the tubing TO flex without cracking, the bends at the close proximity to the ends is to allow movement without tube failures much as with steel train rails are curved at specific intervals with period break points to allow expansion/contraction.    As to distance the amount of time per injection of a diesel is milliseconds, Millionths of seconds, the instant a diesel is running the pressure never really ceases to exist within the fuel lines, it does drift away from Nozzle set point yet never reaches zero until the engine is stopped, that is the reason a dribbling nozzle will seem to Misfire as well Fuel Wash a Cylinder, it must build Back to the necessary pressure and then hold it which it doesn't.  A fuel Line length difference of an inch is far less than a millionth of a second up to a factor of 10 in the time scheme, has little to do with the volumetric or principles of fluid flow as the flow seldom slows enough to be considered Stopped.  This Lines can be any length and make little impact to the engine.  Mack fuel Lines could vary as much as Five inches across the later engines, on the old Cats always a variable up to a few inches, never had issues.