 Fuel pump physics, Push/pull/suck/pump? |
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| lmcchesney |
 Feb 3 2004, 06:49 PM
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Member  Group: Members Posts: 488 Joined: 24-November 03 From: Ocala, Fl. Member No.: 1,381 Region Association: None  |
My little fuel pump(72) has been working for six years without a problem. Now that I am rebuilding the car and looked at the fuel hose diagram with fuel flows as per PP and DD, I must admit. I have not the foggest how this little pump works.
Fuel tank supply feeds a "Y" connector with the "R" port on the pump and the fuel line feeding the engine compartment. I do not see a valve in the "Y" connector. Fuel returns from the engine compartment to enter the "S" port. Then the "D"port returns the fuel to the tank. If the roller pump works by pushing fuel out the "R" port, why would the fuel not flow to the engine compartment and back to the tank via the supply line? I have done a search and reviewed the classic section without finidng the answers. What mechanism is being used? Thanks, L. McChesney lamcchesney@netzero.net |
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Posts in this topic
lmcchesney Fuel pump physics Feb 3 2004, 06:49 PM
Brad Roberts Um.. the Y is only used on the R side (return from... Feb 3 2004, 06:53 PM lmcchesney Brad, that is the way I understood the system as w... Feb 3 2004, 07:15 PM lmcchesney I think I have it now. The diagram confused me. ... Feb 3 2004, 07:21 PM Brad Roberts No problem.. when I come across some free time, I... Feb 4 2004, 01:12 AM Dave_Darling S = "Saugen" == German for "suction"
D = "Druck" =... Feb 4 2004, 10:51 AM lmcchesney Thanks Guys,
No complaints DD. Now a question tha... Feb 4 2004, 05:59 PM Dave_Darling 9mm feed line, 7mm return.
If you mean was I look... Feb 4 2004, 06:09 PM Racer Chris I like to think of S as "supply", D as "delivery",... Feb 4 2004, 09:18 PM lmcchesney Thanks all,
Chris, the duel pump is for stable pre... Feb 5 2004, 06:24 AM Racer Chris L.,
Twice the pumps equals twice the volume. Ther... Feb 5 2004, 07:15 AM
lmcchesney I got the test run of the dual pump dual fuel runn... Feb 8 2004, 07:30 PM  |
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