DjDaoust
Member
Any tips on swapping out the fuel filters on our 3126's this weekend? Replacing with the Cat brand filters.
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Yea with five hundred strokes and don't forget to turn the little valve 90 degrees. Those pumps are a fuel leaking PITA. I think it best to fill the filter then install. Advance the throttle fully which will set high demand on the rack and crank it up backing the throttle out when she fires up. It'll stumble a bit but recover in short order. Simple and works. Same when changing the Racors.....there's little pumps next to the filters. you have to unscrew the pump head and then pump fuel into the filter until it's full.