Date:         Tue, 11 May 2021 23:38:24 -0600
Reply-To:     OlRivrRat <OlRivrRat@COMCAST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         OlRivrRat <OlRivrRat@COMCAST.NET>
Subject:      Re: Cold start oil pressure
Comments: To: "VW~AlistairBell" <albell@shaw.ca>
In-Reply-To:  <32FE652F-0CF8-461A-95AF-12BED9DF5118@shaw.ca>
Content-Type: text/plain; charset=utf-8

        They will work just fine as long as You Can Avoid getting an Air Bubble between the

Sender & the Fluid ~

> On 11 May , 2021, at 11:11 PM, Alistair Bell <albell@shaw.ca> wrote:
> 
> I’d like that explained to me. I mean the problem of having an oil pressure sender on a tube.
> 
> I’m not being coy, I mean it. Purely mechanical oil pressure gauges are at the end of a tube, why not an electrical sender?
> 
> Alistair 
> 
>> On May 11, 2021, at 9:42 PM, OlRivrRat <OlRivrRat@comcast.net> wrote:
>> 
>>         IMHO, placing a Sender/Sensor, be it Pressure or Temp, @ the end of a Dead End Tube
>> 
>> is a Very Bad Idea > In the case of a Temp Sensor it could be next to impossible to get Fluid
>> 
>> to it that is Relevant & in the case of Pressure,, If You happen to end up with an Air Bubble
>> 
>> Trapped Between the Fluid & the Sensor You Most Probably May Not get Accurate Readings ~
>> 
>>                                                               ORR ~ DeanB
>> 
>>> On 10 May , 2021, at 9:43 PM, Gene P <olgreywoof@GMAIL.COM> wrote:
>>> 
>>> Hey folks,
>>> 87 Wolfsburg 2.1, original everything
>>> I don’t think this is a problem, I’m just wanting to learn something.
>>> For years I’ve had VDO oil pressure and temp gauges, senders on a sandwich adaptor at the oil filter.  Start-up pressure has been just under 80, right at the top of the gauge, in any season.
>>> 
>>> As part of a recent project, I pulled the sender between the pushrod tubes and put that with the VDO sender on a tee about 7 inches forward of that port.  Now start-up pressure is about 55-57.  Would moving the sender in that manner cause a change, or that much change, in the reading?
>>> 
>>> The other change I made (burying the lead I think) is switching from Castrol 20W/50 to Mobil1 15/50 for the first time.  Does synthetic oil make that much difference in start-up pressure?
>