Branson 4020 fuel issue

[farmallbill]

I need some more help. I put the 4020 back together today and can't get engine to start. I have fuel from the electric pump getting to the injection pump, I pulled the line off and found a good stream of fuel. I cracked the injection lines and am not geting any fuel out of #1, getting very little out of number 2 and 3. when start cranking getting a little puff of smoke. has anyone ran into any problems with the injection pumps? I was not sure if the coolant that got in the engine oil when the guy had ran it after the head cracked would of caused a problem with the inj pump.