Evening, Cat 420DIT / BLN05998 / 7400+/-hrs Im assuming I have a fuel issue at startup. Cold tractor immediately fires then stops running. Takes another 2-3 20sec cycles to fire again. Machine runs great after running. I bought the tractor 4 years ago. It had shy of 7k hrs when purchased. Its been used mainly for moving snow. Full fluid service upon my receipt. Latest record I find is oil/fuel/air change at 10/26/22 — 7243hrs. Problem became more evident throughout this winter. Longer and more cranking times to get running. I assumed bad lift pump and replaced the pump last weekend. After lift pump was installed ran fine. That was Sunday the 30th. went to start tonight and I still have the same issue. Leakdown somehow? Check valve at pump? Any help is appreciated Andy
Does the circled filter have the optional water bowl on it?
Water separator (no glass/plastic-it’s a sealed unit) as you indicate. Filter tractor north of that I believe.
Replaced the water separator and that appears to have solved my issue. Ill report back in a couple months to verify Much appreciated.