hot engine after-run circuit

[drew@scirocco.cs.uoguelph.ca (Drew MacPherson)]

The after-run circuits I have seen on 8V cars have a temperature sensor
mounted on a bracket in between the cylinder head cover and the intake
manifold.  The sensor is open to air - not in the water jacket.

CIS cars use a 110C switch that's blue, digifant uses a 100C switch that's 
yellow, and TurboDiesels use a 115C switch that's white.  Corrados with 
after-run use a 90C switch (blue again - thanks VW)

I've been looking at available temperature switches to control my low 
speed fan on the rad (to draw more air through the I/C) and possibly to 
control an IC misting system as well, in case you were wondering why I 
have all these temps and colours handy... :)


Does this help answer your question at all?  I haven't had a cup of 
coffee yet, so I may have missed the mark... :)

Drew

On Sat, 15 Mar 2003, Allyn wrote:

> when i put the 2.0 in the rieger i was left scratching my head when
> reconnecting one of the wires. on the right side of the head there are 4
> senders. the 2 bottom ones are easy (color coded plugs), the upper rear is a
> tab that sticks out (also easy, since there is only one plastic covered
> connector for that as well). the upper front is a flat disc thats meant to
> take a typical crimp connector type plug, only sideways. the catch is that
> there is another one of these same flat discs at the rear right side of the
> head, yet i have only one connector to put on. im fairly certain the wire is
> to the after-run circuit, but the bentley gets really sketchy when it talks
> about this circuit. i cant find the wire in the schematics, and cant find a
> physical head-sensor layout in there either. has anyone figured out what
> goes where as far as these single wire connections go?
> Al
> 
> 
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