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Re: [GMCnet] Fuel system. [message #323695 is a reply to message #323689] Sun, 10 September 2017 11:16 Go to previous messageGo to previous message
Matt Colie is currently offline  Matt Colie   United States
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Registered: March 2007
Location: S.E. Michigan
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Johnny Bridges wrote on Sun, 10 September 2017 08:58
For what it's worth, the outlet valve in the fuel pump is essentially a check valve. A diaphragm pump won't work without it.

--johnny

Close Johnny,

Both the Inlet and the Outlet valves have to be check valves, so both would have to leaks to let the fuel run back.
But, if you sucked up rust from the tanks, I suppose it could happen.

Matt


Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
 
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