Re: type3-d Digest V00 #149

[Glenn Roesener <groesener@yahoo.com>]

On 16 Jun 00, at 21:23, Keith Park wrote:

> you wont be calibrated properly when messed with and one
of those 
diaphragm
> is under vacuum.  You need another 71 007 pressure
sensor, 
unfortunately a 1
> year only part but they are out there.

to which Jim replied:

>He said diaphram, so I assumed that he didn't mean the
bellows. If 
that is correct, then I think a careful replacement could
be made by 
just adjusting the center stud on the diaphram to match the
old one.

If the bellows was torn, then I agree that it can't be
fixed. At 
least not by us.



To which I attempt to clarify:

When I say diaphram, I'm referring to the piece most
rearward (as it sits in the car) inside the sensor.  It has
a small adjusting screw in the middle, and a very thin
metal outer edge.  The tear follows the circle, between
where the thicker inner body joins the thin outer section. 
I assumed the bellows was the fat expandable device in the
center of the pressure sensor assembly.  That said, I don't
see how the bellows could "tear".  But I'm mostly concerned
that soldering the diaphram would alter it's properties,
especially when I see that set screw grinning at me from
the middle.  But being the cheap kinda guy I am, and
enjoying the challenge of NOT throwing something away,
which is half the reason I drive VW's to start with, I'd
like to fix it if I can.


=====
Glenn Roesener-Air-cooled, as God intended

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