[urq] part identification

[DGraber460 at aol.com]

In a message dated 2/11/2005 11:06:22 A.M. Mountain Standard Time,  
ekellock at gmail.com writes:

I  believe we have a "ding".  Large and brown, even the  connector.   I
read through the IST docs last night looking for  some mention of it.

How can I test that bad boy?

I just realized  that I did not refer to Bentley last night.  That may
have helped a  bit...

Ed


On Fri, 11 Feb 2005 12:57:00 -0500, Martin Pajak  <martin at quattro.ca> wrote:
> Ed,
> 
> If it is rather  large and brown (as well as the connector) than it is the
> Cold Start  Valve thermoswitch.
> 
> Hope this helps.
> 
> Martin  Pajak
> 
> http://www.quattro.ca
> 
> 1983 Audi  Ur-quattro (305,000 km) In storage
> 1985 Audi Ur-quattro (203,000 km)  Euro spec. import mit 3B ;o)
> 1986 Audi 4000s quattro (270,000 km)  winter car
> 1971 Porsche 911T (45,000 mi) all original
> 
>  
> -----Original Message-----
> From: urq-bounces at audifans.com  [mailto:urq-bounces at audifans.com]On
> Behalf Of Ed Kellock
> Sent:  February 11, 2005 12:51
> To: Urq List
> Subject: [urq] part  identification
> 
> '85 WX
> 
> What is the sensor at  the back of the head?
> 
> It has two tabs.  The connector  plug has one wire going to one contact
> and two wires going to the  other.
> 
> Etka is confusing.  (possible  understatement)
> 
> "early" p/n is 056 919 369P
> "later"  p/n is 171 919 521F but it is stated to be 1 pin.
> 
> Does the  "thermoneumatic valve" on the side of the block fail often?
> 
>  Thanks,
> Ed


I have tested my thermo time switches on the stove in boiling water. I  hook 
an Ohm meter across the terminals, note the reading cold, immerse it in the  
hot water, and time the interval to change. I have several and found that one 
of  the units was defunct.
The thermo/vac switch on the side of the head is a very fragile unit and  
most I have encountered are broken. It is the first part I go after  when I find 
an I5 turbo in the boneyard. There are different temp rating units  as well.
Do you need one of each? 

 
Dennis
Denver