Basically an impulse pump that self regulates flow delivery rate, which can cause a mechanical gauge to pulse at low demand, it stays steady at higher demand and part of reason I have (2) the factory 32gph, and the Walbro FRB-5 45 gph on mine I can select 1 or other or both running parallel to tee junction from each to the single FFM, inlet fitting, also 1 or other as back up in event one quits.
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When I had the live gauge installed into the cab, running the facet impulse pump and then later the Carter pump that Leroy was selling I had no problem with with the cheap mechanical gauge. Went through several fuel pumps but then read warnings about bursting, breaking fuel lines so removed the mechanical unit and went with the gloshift electronic gauges.Basically an impulse pump that self regulates flow delivery rate, which can cause a mechanical gauge to pulse at low demand, it stays steady at higher demand and part of reason I have (2) the factory 32gph, and the Walbro FRB-5 45 gph on mine I can select 1 or other or both running parallel to tee junction from each to the single FFM, inlet fitting, also 1 or other as back up in event one quits.
FR Series Fuel Pumps - Walbro
The FR pumps have an aluminum die cast body. Most models have a protective dichromate finish (96 hours) and the marine models have additional corrosion...