How do 8V oil coolers Work?

[rfkellner at snet.net (Rick Kellner)]

Many of the components discussed can be found at the following site.


http://www.volkswagencountry.com/empioilsys.htm

Rick.

-----Original Message-----
From: scirocco-l-bounces@scirocco.org
[mailto:scirocco-l-bounces@scirocco.org] On Behalf Of
sailingfc@dslextreme.com
Sent: Monday, August 23, 2004 8:32 PM
To: Neptuno
Cc: scirocco-l@scirocco.org
Subject: Re: How do 8V oil coolers Work?

The first one (liquid to liquid) uses engine coolant running in and out
of
the two pipes.  In steady state running, the coolant is cooler than the
oil and therefore heat is transfered from the oil to the coolant.  This
setup is more compact than the external setup, but requires running
additional coolant lines if the plumbing isn't already there.  One
advantage is the engine warmup time is reduced due to the transfer of
heat
between the cooling and oil systems.  One disadvantage is the cooler can
corrode and mix the two fluids.

The second system (air to liquid) uses air to cool the oil.  Oil runs
through the sandwich adapter plate to the cooling radiator and air
traveling through it extracts the heat.  This system is more efficient
at
extracting heat because there is a greater differential in the
temperatures of the oil and air.  Because this system uses air for
cooling, it's a good idea to have the thermostatic adapter to control
oil
flow to the cooler until the oil is up to temperature.

I prefer the air to liquid system.
That's it in a nutshell.

-Dick-
78 Scirocco
Original Owner
95 Passat
Second Owner


Neptuno
> There has been much talk on this list at different
> time about buying and instaling external oil coolers
> from volvos and sanwdish style oil coolers from GTI's
> and so fort, but how do tghis things work? DO they all
> work the same? Some seem to be coolant cooling oil and
> others seem to be oil coolers getting cooled by a
> radiator type cooler. Is that right? ARe there more
> than one way to cool the oil?
>
> Here is that sandwish plate one
>
http://vw-parts.drivewire.com/buynow-vw/water-cool/oil-cooler~pgn1~pcd34
78.html
>
> Here is the external version(the one Im most confused
> over)
> http://www.gprparts.com/brands/gprOilCoolerKit/
>
> TIA
> tony
>
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