Re: 6v fuel pump wiring question
Posted by JWL On 2011/10/24 10:32:40
Quote:
PackardV8 wrote:
...IF the "manual pump" goes bad to the extent that it is pumping fuel into crankcase then it will continue to do so either with electric pump or no electric pump and regardless of how anything is plumbed.
THe only way to eleminate the possibility of manual pump going bad and pumping gas into crankcase is to eleminate "manual pump" and use only electric pump .
Keith, if my understanding is correct, an additional fuel line from the output of an electric fuel pump to a tee fitting on the output of a mechanical pump will allow the electric pump to provide fuel to the carburetor without pumping through the mechanical pump. The mechanical pump's output check valve will prevent fuel pumped from the electric to go back into the mechanical pump. This is what I meant by plumbing an electric pump in parallel with the mechanical. Like I said earlier: Someone please check me on this one.
(o[]o)
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