Date:         Tue, 19 Jun 2007 12:20:47 -0700
Reply-To:     Thomas Pfrommer <pfrommer@PHAS.UBC.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Thomas Pfrommer <pfrommer@PHAS.UBC.CA>
Organization: University of British Columbia
Subject:      Heat resistance of VDO dual sender
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Hi everybody,
I am currently installing a permanent electrical oil pressure sender in
my 2.1l  87 Vanagon and I am wandering about the heat resistance of the
sender unit. I read some old posts here on the mailing list as well as
this article

http://www.van-cafe.com/vanagonparts.jsp?pa=ip&ip=1401786957

and this

http://www.vanagon.com/info/articles/oil-pressure-probs/index.html


I do not like the idea to have the sender under the left tin shield and
have it exposed to all the dirt and stuff. So i decided to use a tubing
(steel) and bent it in a manner so that I can install the sender on top
of the engine where the AC is supposed to sit if i had one. (Let me know
if you want a picture on how much and where to bend these tubings .... I
used 20" of tubing).
As whole system is on the engine, I do not expect to have lots of stress
on the M10x1 threaded hole between the pushrod tubes, so hopefully I do
not damage it with the vibrations. Its the same case, just connected
above and below. Stainless steel braided Teflon tubing was really
expensive unfortunately. Please correct me if I am wrong.

Hence there is even a nice open threaded hole that I can use to clamp
down the sender. I will use a P (or Q)-shaped metal sheet to hold it. My
question now is, whether the heat, transfered by this metal sheet from
the engine will do any harm to the sender? Also the radiation heat will
be a lot, as the sender is not much above the case (~1cm). I could use
some silicon based tubing and ground the sender actively via a small
wire. Reading the above mentioned articles, I will have to use Teflon
band to seal the fittings (brass). So I cannot use the tubing itself to
ground. Before I bend the metal sheet I just would like to know if the
heat insulation plus additional grounding effort is necessary, or should
I just go with the metal sheet directly to the sender.

Thanks a lot for your help.
Hey the camping season has now arrived in Vancouver BC as well. I am
looking forward to finally use m nice van.
Cheers
Thomas