[Vwdiesel] Electroyisis and heater core/radiator

[James Hansen]

> >> neg of the battery and the positive lead to the radiator core.  If
> >> it's greater than .300 volts, the aluminum heater core will fail.
> >> Well I measure mine and it's -.360 (it's negative).

____

Was thinking more about this... what needs to happen is the absence of
electrolite. All the electrolite in a battery does is complete the circuit,
and to accomplish this, an acid is used- being ionic, it makes a good
conductor.  To make it a poorer conductor, it just needs to be a non-acid.
right?  Now I have to go find my litmus paper....

Sacrificial anodes work because the sacrificial metal has a higher
electronnegativity than the metal being protected, and loses electrons more
easily. This works if the metals are in contact with each other and is
independant of an electrolite. Take away conductance, and it all quits.
Here, I think the battery effect is more at work, and if you can
electrically isolate one part, there can be no current.  Jan pointed out the
corrosion on the rad mount points, and I have seen this too.  Hmmmm.....
something to remember.  stinkin Al rads...
-James
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.782 / Virus Database: 528 - Release Date: 10/22/2004