facet fuel pump failure

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phil brookman
Posts: 73
Joined: Tue Aug 12, 2008 4:40 pm

facet fuel pump failure

Post by phil brookman » Tue Apr 14, 2009 9:52 am

can these in any way fail-- so as to stop flow of fuel going through them ..

type is 40--105 low pressure unit cube shape type
they apparently are some kind of solenoid type pump


tia
phill

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Kevin Dilks
Posts: 46
Joined: Tue Apr 07, 2009 6:21 am
Location: leicestershire

facet pumps

Post by Kevin Dilks » Thu Apr 16, 2009 8:31 am

In theory they should always flow fuel but as there is no inlet filter may be it has some crud blocking it. BTW what engine is this on? as I have tested this pump but at full throttle on a 912 S it does not flow enough and actually drops the fuel pressure when switched on. Please bear in mind this is a FULL throttle. I know what they claim as the fuel flow but this seems a bit optimistic.........
Kevin

phil brookman
Posts: 73
Joined: Tue Aug 12, 2008 4:40 pm

facet fule pump

Post by phil brookman » Fri Apr 17, 2009 12:15 am

have you had a look inside one
i am realy wanting to know if or when it stops or fails , is there any way it will stop fuel flowing through it....
i have another pump upstream of it so this aspect is realy important
or i will go to a split 2 pumps on 2 different circiuts
phill tia

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Kevin Dilks
Posts: 46
Joined: Tue Apr 07, 2009 6:21 am
Location: leicestershire

Post by Kevin Dilks » Fri Apr 17, 2009 8:22 am

Be carfull of using facet pumps in series as they will keep adding pressure.Easy way to exceed the maximum fuel pressure for carbs.

Use them in parallel and fit non return check valves to stop reverse flow through the pumps.

Kevin

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