Old IP, new injector runs rough?

[welpro222]

Hey guys, I installed new bosch (india) injectors, and it seems to idle rough and smoke alittle, above idle its fine. Before it was fine and no smoke. I was reading somewhere that new injectors can have higher pop pressures and can retard the timing. What do you guys think, anybody experience this problem?

 

[Iceman3005]

Get the IP rebuilt or get a new one, we probably also have a week IP and the new injectors are showing that. Or loosen the IP and rotate it, see if it clears the smoke up and stops the rough idle.

 

[cucvrus]

OK this is a question. I never replaced a set of nozzles in any of the CUCV's I had over the years. I put 1 or 2 injectors in because they leaked. But I never had any need to replace the delivery nozzles. I did many injection pumps. Also this is a question. Are they injectors or delivery nozzles only? I will look in my GM book again. But I was told that they were not injectors. I don't know and I value the man that told me that as a reputable guy. The injection pump always seemed to be the root to all poor running that I ever had to repair on the CUCV. Pretty easy and straight forward. And now days an inexpensive repair.