<VV> Healthy pumps?

[Kenneth E Pepke]

No, the spring on the cam follower rod keeps it in contact with the
eccentric ... the end of the pump pushrod makes contact only 
as the carb calls for more fuel ... It works kind of like a solid lifter
valve train and moves the pushrod after the lash is taken up.

On Fri, 18 Jul 2008 09:42:09 -0700 corvairs <corvairs at pacifier.com>
writes:
> Yeah, the only problem is, are we to believe that the diaphram 
> assembly 
> sits off away from the pump rod and they bang back and forth 
> indescriminatly until pressure is needed again? Picture this 
> scenario 
> and tell me if it makes sense. Lon
> 
> 
> Bryan Blackwell wrote:
> > After thinking about this for a bit, it makes perfect sense - if 
> you  
> > used the eccentric to drive the fuel pressure, then the pressure  
> > generated would easily be able to overcome the inlet needles if  
> > something got stuck (think jammed relief valve).  This way, the  
> > spring generates the pressure, and basically it can't ever go over 
>  
> > whatever stiffness the spring has.  Slick.
> >
> > --Bryan
> >   
> 
> 

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