Re:

[kdbinney@juno.com]

On Sat, 3 May 1997 09:06:56 -0500 (CDT) ChuckKuecker <ckuecker@mcs.net>
writes:
>At 17:18 5/2/97 EDT, you wrote:
>>your getting rust to break off from inside the system to make the 
>coolant
>>brown.  Did you use any flush or just drain and refill?  Some people 
>just
>>drain it and say they flushed the system.  What mixture did you use? 
>if
>>you went with too much water it may cause rust quicker.  I have been 
>told
>>that using very watered down or straight water in aluminum heads 
>causes
>>lots of rust which in turn will cause your coolant to be brown.  Of
>>course maybe your radiator is ready to go and is just letting all the
>>rust come off.
>>
>>Kyle
>>
>I did not know aluminum could rust. Possibly you mean a galvanic 
>corrosion
>between the aluminum head and the cast iron block? The block 
>definitely
>can and will rust, given the chance..

sure, what he said

>
>Straight water is only good to get you limping into the nearest 
>service
>station after you boil over.

I was told no way, not even for that.  it was a long time ago and i
havent talked to that guy for some time, he seemed to know his stuff
though, at least to me then.  he gave me a bunch of reasons but i really
didnt understand then, If i could only remember what he actually said
instead of the bottom line.

 Antifreeze provides corrosion protection,
>lubrication for the water pump, and sometimes helps seal small pinhole
>leaks, depending on the brand. It also raises the boiling point of the
>coolant substantially, as well as lowering the freeze point. Modern 
>cars
>will boil over very easily with plain water only.
>
>Most VW radiators are aluminum and plastic. They don't rust, but can 
>corrode
>and leak or clog with debris from elsewhere. Aftermarket radiators can 
>be
>brass and copper, like in older American cars. Same problems.
>
>If you are in the cooling system, by all means, FLUSH it properly! 

Lots of people dont though, "ah it doesnt matter...."

>Just
>good preventative maintanance...
>
>Chuck Kuecker
>
>ckuecker@mcs.net
>
>'83 Scirocco
>'58 Ghia Convert
>'67 Bug
>'63 Bug
>'91 Vanagon
>
>
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