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I supported Toymods
Location:
melbourne
Registered:
June 2002
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Re: fuel pump stops when hot (again)
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Thu, 06 October 2005 13:45
 
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simple really, you want cold fuel to go out the bottom of the surge tank, so you want cold fuel to go in the bottom of the surge tank.
you want hot fuel to go out of the surge tank (back into the main tank) so you want hot return fuel to go in the top of the surge tank.
Nearly all fuel pumps are just fed a constant 12 volts, and they do just draw the current they need (like any electrical thing)
some cars have two pump supply voltages, but our dinosaur sprinters and the like just have one.
I think what bunky was getting at is that AFMs can have an output that will switch the pump off when no airflow is going into the engine, when starting the pump relay is powered by the start signal so it will turn on.
If your sprinter has an australian fuyel tank, then it has basically nothing in the way of cup/bucket swirl pot, just one diagonalish baffle and a little mesh filter on the end of the fuel pickup.
Lift pumps are pretty pricy, i'd get a better swirl pot made up first, but what you suggest should work fine. Just remember the lift pump will have to deliver much more fuel than the engine is using (which by the sounds of it you already know)
maybeye fit a fuel cooler between the return line and your surge tank?
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| | Subject | Poster | Date |
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fuel pump stops when hot (again)
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EVOSTi | Mon, 03 October 2005 09:44 |
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Re: fuel pump stops when hot (again)
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sideshow | Mon, 03 October 2005 10:19 |
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Re: fuel pump stops when hot (again)
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EVOSTi | Mon, 03 October 2005 10:41 |
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Re: fuel pump stops when hot (again)
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ChrisTH | Mon, 03 October 2005 10:50 |
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Re: fuel pump stops when hot (again)
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mrshin | Mon, 03 October 2005 14:08 |
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Re: fuel pump stops when hot (again)
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shinybluesteel | Mon, 03 October 2005 14:36 |
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Re: fuel pump stops when hot (again)
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EVOSTi | Tue, 04 October 2005 06:41 |
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Re: fuel pump stops when hot (again)
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TurboRA28 | Tue, 04 October 2005 23:31 |
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Re: fuel pump stops when hot (again)
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EVOSTi | Wed, 05 October 2005 06:54 |
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Re: fuel pump stops when hot (again)
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bunkyT18 | Wed, 05 October 2005 08:23 |
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Re: fuel pump stops when hot (again)
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EVOSTi | Wed, 05 October 2005 11:42 |
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Re: fuel pump stops when hot (again)
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bunkyT18 | Wed, 05 October 2005 12:06 |
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Re: fuel pump stops when hot (again)
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EVOSTi | Wed, 05 October 2005 12:25 |
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Re: fuel pump stops when hot (again)
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EVOSTi | Wed, 05 October 2005 12:34 |
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Re: fuel pump stops when hot (again)
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xolent | Wed, 05 October 2005 13:10 |
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Re: fuel pump stops when hot (again)
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shinybluesteel | Wed, 05 October 2005 13:38 |
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Re: fuel pump stops when hot (again)
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ChrisTH | Wed, 05 October 2005 15:02 |
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Re: fuel pump stops when hot (again)
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bunkyT18 | Thu, 06 October 2005 01:31 |
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Re: fuel pump stops when hot (again)
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bunkyT18 | Thu, 06 October 2005 01:33 |
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Re: fuel pump stops when hot (again)
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EVOSTi | Thu, 06 October 2005 10:56 |
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Re: fuel pump stops when hot (again)
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shinybluesteel | Thu, 06 October 2005 13:45 |
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Re: fuel pump stops when hot (again)
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ChrisTH | Fri, 07 October 2005 04:50 |
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Re: fuel pump stops when hot (again)
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ChrisTH | Fri, 07 October 2005 05:19 |
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Re: fuel pump stops when hot (again)
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ChrisTH | Fri, 07 October 2005 08:59 |
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Re: fuel pump stops when hot (again)
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EVOSTi | Sat, 08 October 2005 01:31 |
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Re: fuel pump stops when hot (again)
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ChrisTH | Sat, 08 October 2005 10:10 |
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Re: fuel pump stops when hot (again)
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ChrisTH | Sat, 08 October 2005 14:43 |
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Re: fuel pump stops when hot (again)
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EVOSTi | Sun, 09 October 2005 09:01 |
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Re: fuel pump stops when hot (again)
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ChrisTH | Sun, 09 October 2005 11:21 |
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Re: fuel pump stops when hot (again)
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EVOSTi | Mon, 10 October 2005 06:52 |
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Re: fuel pump stops when hot (again)
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ChrisTH | Mon, 10 October 2005 08:29 |
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Re: fuel pump stops when hot (again)
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ChrisTH | Tue, 11 October 2005 03:26 |
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Re: fuel pump stops when hot (again)
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ChrisTH | Thu, 13 October 2005 14:27 |
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Re: fuel pump stops when hot (again)
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EVOSTi | Sat, 15 October 2005 04:05 |
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Re: fuel pump stops when hot (again)
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ChrisTH | Sat, 15 October 2005 04:20 |
