If it's not getting fuel now at startup, and running it at 12V fixes it.. I'd imagine your pump is letting go. I wouldn't recommend using this as a method to aid a failing pump, however it could help you determine if your pump is failing..

I have been noticing some rather intrusive whine from my Walbro.. Is this common?

Mine whine all the time. If the pitch has changed and sounds different than what it ussually does, you may have a clogged fuel filter, or the filter in the tank on the pump may have crap in it.

Priceless info guys https://www.nopistons.com/forums/pub...1047683894.gif



- I'm planning the dual Walbro install next week. https://www.nopistons.com/forums/pub...#>/biggrin.png https://www.nopistons.com/forums/pub...#>/biggrin.png

Doin a walbro instal in the coming weeks too, thanks for the great info in this forum in general! Amazing there was no flame war during that entire post... you can probably tell where I usualy am.



Bob

I second that motion. https://www.nopistons.com/forums/pub...1047683894.gif





I'll plan a dual Walbro setup once I officially get my FD. https://www.nopistons.com/forums/pub...IR#>/bigok.gif

How do I wire my fuel pump up for constant 12v?



Right now I just have it wired up through my haltech.

when I picked a fuel pump, Rotary performance says they recommend against walbro pumps, they said they crap out b4 others so I ended up getting a denso 255lph, for what application, I do not know.

[quote name='ambassador_josh' date='Feb 9 2005, 07:24 PM']when I picked a fuel pump, Rotary performance says they recommend against walbro pumps, they said they crap out b4 others so I ended up getting a denso 255lph, for what application, I do not know.


[/quote]





They say that becuase they want to sell you their denso supra TT pump with the part number removed...

just looked at my fuel pump relay and it didnt look like the one in the picture. i did however force the connection to make constant contact with a toothpick. is that OK?