318 BBD carb fuel pump pressure?

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Posted by Chriscase [76.212.164.154] on Friday, September 25, 2009 at 14:55:17 :

The BBD 2bbl on my 230 has taken to bucking and surging about every 1/2 mile. Fuel pump is good, good flow from tank. But it just occurred to me that it might run well with full bowl, then the bowl runs dry because of low pressure. Once the bowl refills, it's good to go again.

I think I may drill out the inlet orifice, that would make low pressure push harder against the spring in the inlet need- double the area, double the amount of push. Makes sense, if the BBD needs double the pressure.

Follow Ups:

Re: 318 BBD carb fuel pump pressure? - Drew M. 15:25:10 09/25/2009

Drill job helped, didn't cure. Plenty of flow to system... - Chriscase 17:05:25 09/25/2009
- Re: Drill job helped, didn't cure. Plenty of flow to system... - The Dodge Boys 22:07:50 09/25/2009
  - Just a little extreme... - Chriscase 23:31:41 09/25/2009
    - Re: Just a little extreme... - Kaegi 12:51:46 09/26/2009
      - I thought I was on to something... - Chriscase 16:22:04 09/26/2009

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