Hi, I'm a newb so any help would be appreciated.
I've owned my '89 1520 for 4 years and never really had any issues. Recently it started running rough right after I started it, but eventually it would even out (once the engine was hot). By rough I mean that it felt like it was missing and there were abnormal puffs of smoke coming out the muffler, usually only noticeable at low RPM. Eventually it got so that sometimes I'd have to try 2 or 3 times to get it started, which was concerning since it always started immediately before.
I figured it might be an injector problem (they are 20 years old after all), so I pulled one and it looked pretty filthy (could be normal for a diesel as i don't have much experience). I replaced them all with NH parts from my dealer. Unfortunately now the problem is worse than before. The tractor is harder to start and I see puffs of smoke and drops in RPM even at high throttle.
Is there some other adjustment I need to make after replacing injectors?
I'm hoping I didn't make an even bigger mess of things...
I've owned my '89 1520 for 4 years and never really had any issues. Recently it started running rough right after I started it, but eventually it would even out (once the engine was hot). By rough I mean that it felt like it was missing and there were abnormal puffs of smoke coming out the muffler, usually only noticeable at low RPM. Eventually it got so that sometimes I'd have to try 2 or 3 times to get it started, which was concerning since it always started immediately before.
I figured it might be an injector problem (they are 20 years old after all), so I pulled one and it looked pretty filthy (could be normal for a diesel as i don't have much experience). I replaced them all with NH parts from my dealer. Unfortunately now the problem is worse than before. The tractor is harder to start and I see puffs of smoke and drops in RPM even at high throttle.
Is there some other adjustment I need to make after replacing injectors?
I'm hoping I didn't make an even bigger mess of things...