ok guys i wont even try to discount any stories about purging with suscess,but for me i have never been able to fix a bad injector with a poor spray pattern or one that leaks with any purging fluid. maybe i aint holding my mouth right.
if a nozzle is worn out u got to replace it with a good one, if its dirty-rusty you got to take it apart and clean it. as i said i use a strong solvent,i suppose i could get the same results with oils-penetrating-wd40-pb blaster, but i dont want to take the time to fool around and it always takes some scrubbing to get everything off the injectors.
just my experience.
larry perkins lou ky