Sorry if the start of the thread was lost somewhere.  Quick summary: The 
problem was the engine twice ran for some time and then died and would not 
start.  When I checked the Racor later, it was half full of fuel so diagnosis 
was either electric fuel pump not working, plugged pickup tube or vacuum leak 
somewhere so it could not pull fuel from tank.  I have been chasing those down 
and now confident the pump and pickup are working, and vacuum leak is either in 
fuel line or Racor holder.  That is why I decided to replace fuel lines when 
several listers suggested that as most likely culprit (from past experience 
with the same problem).  Dave

S/V Aries
1990 C&C 34+
New London, CT



> On Sep 23, 2021, at 10:02 AM, Chris Riedinger via CnC-List 
> <cnc-list@cnc-list.com> wrote:
> 
> Also wondering if 'dont understand' goes a little deeper here
> 
> 
> Do you mean the mechanical pump on your block or? 
> 
> Why are you chasing a fuel pump issue? Do you have a no-start? A boat dying 
> after a certain amount of time? Etc etc 
> 
> On Wed, Sep 22, 2021, 10:19 AM Dave S via CnC-List <cnc-list@cnc-list.com 
> <mailto:cnc-list@cnc-list.com>> wrote:
> If there’s only one terminal on the pump itself then the metal chassis must 
> be the ground. 
> 
> If you are referring to a schematic the ground wire may not be illustrated. 
> 
> Dave 
> 
> Sent from my iPhone
> 
> > On Sep 22, 2021, at 10:16 AM, David Knecht via CnC-List 
> > <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:
> > 
> > I am trying to diagnose fuel issue. I dont understand pump wiring. There 
> > appears to be only one wire to pump. Where is it grounded?
> > 
> > Sent from my iPhone
> > Thanks to all of the subscribers that contributed to the list to help with 
> > the costs involved.  If you want to show your support to the list - use 
> > PayPal to send contribution --   https://www.paypal.me/stumurray 
> > <https://www.paypal.me/stumurray>  Thanks - Stu
> Thanks to all of the subscribers that contributed to the list to help with 
> the costs involved.  If you want to show your support to the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray 
> <https://www.paypal.me/stumurray>  Thanks - Stu
> Thanks to all of the subscribers that contributed to the list to help with 
> the costs involved.  If you want to show your support to the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

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