ken74amx
Full Access Member
I am going to build my own test bench to experiment on a few spare pumps that I have. Wondering what every one thinks?
I'm not understanding just how timing advance or retard will change the amount of fuel delievered during a fuel pluse....
i am not sure how it works but it does. my truck could "roll coal" since i bumped up the timing a little for the new injectors. well turns out i was at 14 deg when Mel timed it this weekend. he set it back to 9 and now the only way i can get some black smoke is lugging it off the line. it made a huge differance in the amount of smoke i made.
no other changes were made, just a timing tweak.
On your truck it just changed the amount of time fuel speds in the combustion chamber- your fuel was still burning on its way out-thus the black smoke.