HELP! TD5 Injector seals this evening. Gone t*ts up

Evening all
I stupidly braved the cold this evening and tackled the injector seals on my 2000 td5. Now it's all back together and running like a bag of spanners. Plooms of white smoke and alot of knocking. Maybe a cylinder down. Starts on button though

When undoing the rocker shaft, I went in increments, but I'll be honest I could have gone around the bolts alot more than I did. I thought they were lose but they were still holding it down into the head.

Second mistake was , the injector pushrod and spring came off the injector on number 1. As I pulled up in the wrong place! It seem to push back together okay though? Replaced all seals and washers.

Anyway reinstalled the rocker shaft. Made sure I'd backed off the rocker arm adjusters (that adjust ontop of injectors) and then turned the crank untill the lobe was at its highest lift.
Turned the adjuster down untill it touched and then backed off 1 turn. I followed this for each one. The only thing is, the nuts just seemed to be turning and turning for ages. Then finally they would lock. Odd!!

So any ideas what I have done wrong or what is causing the problem. Can oil in the connectors ontop of the injectors where the loom plugs in cause it to run rough.

Any ideas please guys. Some days you know you should quit spannering, but want to get it done
(As a side note... it is safe scraping the carbon off the injector nozzle providing it's not anywhere near the tip isnt it?)

Another thing I didnt do.. i pulled the pipe off the FPR before I started, but not off the fuel cooler as it couldnt get to it. Could that be the reason?

Hi guys

I'm going to update this thread and highlight my stupidity, but hopefully it will help someone else..

The error I made was, I adjusted the rocker adjusters similar to how you would set tappets. So I just tightened the adjusting screw untill it touched the injector and then back one turn. This is WRONG!
You have to wind down the adjusting screw against the pushrod spring on the injector untill you feel it bottom out and then slacken 1 full turn and tighten the locknut.

My lack of knowledge caught me out. And unfortunately damaged the thread on one of the adjusting screws. So waiting on a replacement and hopefully all will be well. Do the said adjusting screws only thread out the rockers the one way?

Cheers all