[Vwdiesel] Injection Pump testing ---( the fuel flow test )

[Libbybapa at wmconnect.com]

In a message dated 12/30/05 4:48:11 PM US Mountain Standard Time, Libbybapa 
writes:


> In a message dated 12/30/05 4:39:39 PM US Mountain Standard Time, 
> Libbybapa at wmconnect.com writes:
> 
> 
> >> Only if the flow to the orifice is constant.
> 
> I'll ammend that slightly.  Flow through a *specific sized* orifice is a 
> direct indicator of pressure.  Unfortunately, the "out" orifice size might be 
> fairly difficult to measure for a DIYer, and as mentioned it might wear.  
> Furthermore, it might wear out of round, so those mini drill bits won't do any 
> good for measuring.  Coupled with the wear of the vane pump the flow is not a 
> good indicator of the internal pump pressure.  I would recommend the pressure 
> gauge.
> 
>