Date:         Sun, 19 Aug 2012 11:57:42 -0700
Reply-To:     Rocket J Squirrel <camping.elliott@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Rocket J Squirrel <camping.elliott@GMAIL.COM>
Subject:      Re: Testing fuel delivery results, one oddity
Comments: To: mark drillock <mdrillock@cox.net>
In-Reply-To:  <503130F4.90008@cox.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Excellent question. The two tests were done separately.

--
Jack "Rocket j Squirrel" Elliott
1984 Westfalia, auto trans,
Bend, Ore.

On 08/19/2012 11:31 AM, mark drillock wrote:
>
>
> 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