andybod
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| posted on 5/8/07 at 07:34 PM |
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fuel pressure problems
help please i'm having problems getting any fuel pressure seem to have a bit over the top system 2 red top facet fuel pumps 1st pump feeds what
looks like a fuel swirl pot which is then fed into 2nd pump which feed filter king pressure regulator which has 1 feed to carbs and 1 return to tank
connecting pressure gauge between supply and carbs i can only get a reading of 1 psi tried 2 gauges engine seems to run ok bt occasionally back fires
through carbs
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thunderace
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| posted on 5/8/07 at 07:37 PM |
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sonds like you should not have a return at carb as the presure will be zero as no resistance
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RazMan
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| posted on 5/8/07 at 09:29 PM |
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Normally the regulator is in the return pipe, keeping the carbs or injectors at the right pressure. If you are trying to feed the carbs on the back of
the regulator there won't be sufficient pressure.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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britishtrident
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| posted on 6/8/07 at 10:35 AM |
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Total over kill -- to use the bits you have just ditch the swirl pot, return line and one of the pumps, connect pump inlet straight to the tank, and
the outlet through the regulator to to carbs set pressure to 3psi.
Better still use a nore suitable pump (Facet or SU Burlen or Ford Mechanical or the AC electric pump off a 1980s Rover 216 and ditch the regulator.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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andybod
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| posted on 6/8/07 at 06:11 PM |
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i realise it's over kill but it was built like this when it was raced the swirl pot stops fuel surge at the pump and i cant remove it as
it's built onto the tank carbs don't have a return on them might have a look at weekend see if i can make the system a bit less
complicated
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