To overcome to high fuel pressure from what ever fuel pump, fit a fuel
pressure regulator from e.g. Malpasi. You have a choice from several non
adjustable ones with a set max. pressure, an adjustable regulator and
ones that incorporate a fuel filter with glass bowl and replaceble
filter cartridge.
Easy to find on ebay.
Kees Oudesluijs
NL
Alan Seigrist schreef:
> John -
>
> Not all after market fuel pumps are appropriate for use with British
> cars. If they pump too much pressure (most aftermarkets do) then it
> will push too much fuel into the carb and override the float's cut off
> jet, and flood the carbs and overflow on the garage floor.
>
> You have to get a pump that pumps at 4 psi or less, preferably less
> than 2.5 PSI. Do your research on the Facet pumps, they are not all
> the same.
>
> Also make sure your float jets are clean and free of crud. A lot of
> times old pumps go bad because the fuel tank/lines are full of rust /
> crud and thus the pumps get clogged up and break. Then you put a new
> pump on and it starts pumping lots of backed up crud into your carbs,
> clogging the float jet needles open causing your flooding problem.
>
> I'd reccommend draining your fuel tank and cleaning it out, I bet
> there's a nice pile of crud in it.
>
> Alan
>
> On 8/2/09, John Soderling <bighealey@astound.net> wrote:
>
>> My friend's 1958 BN4 (HD6 carbs) suddenly started to run poorly with little
>> power and we could smell fuel vapor. I suspected lack of fuel, and upon
>> investigating found that the fuel pump (after market) clicks continuously
>> and
>> fuel was dripping from the inlet manifold's rear drain pipe.
>>
>> What are the most probable causes of this? Thanks.
>>
>> Vrooom vrooom,
>> John
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