Posted by mdeisenhauer on November 20, 2023 at 08:54:54 from (66.249.121.23):
As the subject states, I recently installed a rebuilt injector pump on my 4010 JD and it's running, but lacks significant power.
What I've done so far, previously I was having a reoccurring issue where the tractor would run for 20 mins and then die, I could prime the low pressure pump and it would run again for 20 mins and then die again. (Note, when it was running, it was running strong) With help from this forum, I was told the drive ring was deteriorating and needed to be rebuilt.
So I sent my pump to a shop in NE for rebuild. I installed it at TDC with the timing marks lined up and the oil pump arrow pointing towards the block. I bled the injectors and it started right up. But when revving the engine, it coughs and sputters like it has half the power it used to have. I've tried clocking the injector pump both directions and it's basically acting the same, low power and smoking more than it used to prior to the rebuild.
Any ideas on what I need to do to get it running right?
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