Hello,I have a 80's Ford 1200 4x4 that will not start.The engine is a Shibaura 2 Cyl diesel. I rebuilt the engine completely,checked the timing and it's correct and it seams to be getting enough fuel.after bleeding the injectors i pulled the glow plugs and cranked it over.it has a good mix of fuel coming out of both cyl.i heat the glow plugs for 30 seconds,crank it over it only has white smoke coming out of the exaust,will not even try to start.i rebuilt the starter but it still turns slow.could the slow starting be the problem?should i try to pull start it?