Posted by Montanarancher on March 08, 2015 at 08:35:41 from (108.174.114.147):
I recently installed a rebuilt injection pump on my 656D. The timing is set at 3 degrees per the manual. The tractor starts and idles as it should with no issues. When I advance to about 1/2 throttle I start to get white smoke (unburnt fuel) from one cylinder. I did not have this issue with the old pump. Is the new pump to much pressure for the old injectors? Should one also install new injectors with a new pump? I also considered that bad valve could cause this but did not have this issue with the old pump.
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