Hello all, I am rebuilding a Model 3 with a 582 and need to buy an auxilary fuel pump. What do you all use? Facet model ____? Thanks.
Hello all, I am rebuilding a Model 3 with a 582 and need to buy an auxilary fuel pump. What do you all use? Facet model ____? Thanks.
Steve,
Although I am running a 912; and, not a 502, I am using a 40105 model facet for backup and (ocasional) priming. Aircraft Spruce has a pretty good chart showing the characteristics of the various Facet models. The major issue is not to get a pump which would provide a fuel pressure greater than what the engine model will tolerate. In my case, I went for the 40105 because its pressure rating was 3-4.5 psi which is within the specification for fuel pressure on a 912. I have also tested the engine line pressure with the mechanical pump alone and with the mech pump and facet together and found a very small/insignificant rise in pressure with both pumps functioning and certainly remaining within the engine specification.
Dave S
Kitfox 7 Trigear (Flying since 2009)
912ULS Warp Drive
St Paul, MN
Dave, perfect. Thank you. I was also concerned about the fuel pressure for the two Bing carbs.
On the 582 there is a way to use a pump with the check valve. The benefit is that replacement are cheap and available at most any auto parts store. A bit later I can put a picture of how it works.
John Brannen
Morris, IL
Sonerai IIL (Single Seat)
Kitfox 3/4 1050 - Rotax 582 (Back Flying and sold)
Kitfox IV 1050 - Rotax 582 (sold)
Kitfox IV 1200 Speedster - Rotax 912 UL (rebuilt and now flying)
Piper Twin Comanche (Sold)
Glasair 1 FT (Waiting to start)