Well, given that car manufacturers are putting rubber hoses on aluminum
parts, if there was an easy simple solution, they'd be doing it.
  There is also the 'changing coolant' factor.  If people changed coolant
every 2 years like they should - that would help.
 Fwiw, on my own cars and vans I don't have this problem.  Just doesn't
happen.
I think it takes years of leaving the same old yucky coolant in a cooling
system for this corrosion to develop. 
  My batteries don't have corrosion building up on them either.  'course
when I see something needing attention, I attend to it. 

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Zoltan Kuthy
Sent: Thursday, November 29, 2007 9:12 AM
To: vanagon@GERRY.VANAGON.COM
Subject: ONE MAN only out of many

Probably the most important question to answer is; what makes corrosion
between rubber and aluminum?  The other is; how to avoid it?  
Although, I have put this question up more than once within a year, nobody
even attempted to try to answer it, but ONE.
This list is fighting and dreading this symptom the most, yet there is not
enough knowledge to know how to stop it.  
Is there more than ONE out of the hundreds of members who knows, or at least
think he knows?
Anyone?
Zoltan