Rocket J Squirrel wrote:
>
> Fuel Pump Delivery Rate test (Bentley 20.19):
>
> Minimum volume in 30 seconds spec: 500mL, measured: 750mL PASS
>

What this done while you were measuring fuel pressure?

The pump must be working against normal fuel pressure conditions when
its output is measured.
...............................

> Fuel Pressure Regulator test (Bentley 24.25):
>
> With vacuum hose (2) connected spec: approx 2.0 bar, measured: 2.2 bar PASS
> With vacuum hose (2) DISconnected spec: approx 2.5 bar, measured: 2.2
> bar HUH?
>
> The pressure did not change with the vacuum hose connected or disconnected.
>

This indicates a problem. It could be that the vacuum lines are not
connected properly. Or the engine has a serious vacuum leak. Did the
engine speed change when you unplugged the vacuum hose for the test?

The next mechanics test for the regulator would be a vacuum hand pump
connected to the vacuum port on the reg. Then test fuel pressure  before
and after manually applying a reasonable known vacuum pressure to the
regulator vacuum connection.

Mark