changing injectors and return line kit please give me tips!

[94extcabf250diesel]

hey guys I am gettign ready to change all 8 injecotrs and puttign new return line kit on my 1990 f-350 4x4 non turbo. What is the torque to tighten the injectors? also pelase give me any tips and tricks to help the job go easier. I will need all the help i can get on tips. This is the first time i ever have to change injectors so please llet me know. I got brand new delphi injectors for the truck.
thanks,
jimmy

[KevinIH73IDI]

there was another post a couple days back... it had ziggster's website on it but i think the injectors are 35 foot lbs and the lines are 22 ft lbs
put the o-rings on with some vaseline and then put some in the cap before you put that on (just push straight down)
it's a pretty simple job imo

[RLDSL]

a little anti-seize compound on the injector threads will make sure they come out without a fuss next time. Make sure you don't bump the injector tips on anything when putting them in, they don't like that much.

[94extcabf250diesel]

so just pretty much just be careful and watch what i do and ill be fine?
thanks,
jimmy

[cdnsarguy]

Here is how to....
First disconnect injector cap nuts, "do not bend lines" but move them away enough to get the return line caps off as a complete set per side.
After removal of the complete return cap and lines sets, build new sets identical. To remove old orings use a dental or oring pick with a razor knife, do not mark the injector body. When installing orings use lots of grease and roll first one into top groove, then roll second over that to bottom groove. When installing the new lines and caps use grease inside the cap and on orings, place them on respective injectors and gently push straight down until it pops into place on the orings. Install the line capnuts 22ftlbs torque. There should be a small space between the return cap and line capnut when finished, any major leaks mean caps are not seated or orings are cut or line cap nut is not tight. I have done several sets and found bleeding 1-2 injectors at a time on opposite side the best. Tighten lines then place fuel pedal to floor and fast idle and timing advance on, crank for 15 seconds max, mine started after 4th injector was on line.
Note when cranking engine and bleeding there will only be a slight amount of fuel/bubbles seen, no major squirting gysers, that only happens with engine running at idle RPM.

..............................................

Injectors are easy, remove the line cap nuts, gently move the line away sufficient to remove the return lines/caps, then using a 1" socket "DO NOT BEND STEEL LINES" unscrew the injector. Remove the copper seal if left in the base of the bore.

If there is carbon in the bore.........

Place the cylinder at TDC. Clean the bore but do not dump carbon into the cylinders, best to remove the GP and if major amounts of carbon are found, then use a vacuum to clean/suck debris out through the injector or GP hole.

Injector........
Installation is reverse, "DO NOT DAMAGE THE NOZZLE TIPS" you can put "new kit orings" on the injectors but they come with some on already. To replace useing vaseline or??, roll the first oring into first groove, roll second over it to lower groove trying not to cut them. Put a new copper seal on the injector tip, I hold it in place with antisieze, antisieze the threads and barrel, torque to 35lbs, book says twice?. Install the new caps and line "sets" made up "by you" identical to removed sets, use more vaseline inside caps, press down on caps until they snap/pop into place. Connect the line caps torque is 22 ftlbs.

[94extcabf250diesel]

thank you very very very very much! i really apricate you typing all of that out to help me it means alot to me. Now i think i know how to go about doing this so im going to go get started.

[cdnsarguy]

Typing........ it's called cut and past my friend. Many ask the same questions and it's so easy to help them when it's saved info.

[94extcabf250diesel]

ya i tryed to search couldn't find anything
thanks,
jimmy