i have a ford 3000 3 cylinder diesel with a Simms pump It has not ran in years when I purchased it I pulled the fuel lines off of the injectors and it was only pumping to number 1 and 3 I found that the barrel and plunger was stuck so I replaced it and now it pumps to all 3 injectors. But now when i tried to crank it it would not spin fast enough to fire. I found that my battery did not have enough cca to spin it fast enough So I decided to try and pull it behind my truck and pop the clutch When I did I poured a solid white smoke from the exhaust before it even started to run on its own But it finally started running on its own but running terrible and popping like pistol fire coming from the exhaust My question is could it be from the timing being off making it pop and run terrible or possibly another problem Please help