I’m slow.. I don’t see how an air bubble will affect it much. Oil presses bubble, bubble presses sender.

Just like a tire gauge :-) 

Alistair 

> On May 11, 2021, at 10:38 PM, OlRivrRat <OlRivrRat@comcast.net> wrote:
> 
>     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?
>> 
>