[TR] Triumphs Digest, Vol 4, Issue 18

[Don Spence]

Michael
  Well it is true that Vanagon and 914 prosches suffered from regular  
antifreeze they did just fine on a phosphorus free antifreeze/water  
blend. It was the phosphorus that corroded the aluminum.

I believe the earlier reference was a tongue in cheek reference to  
air cooled VWs.



On 15-Jan-10, at 12:00 PM, triumphs-request at autox.team.net wrote:

> From: Michael Porter <mdporter at dfn.com>
> Date: January 14, 2010 7:28:39 PM MST (CA)
> To: Kevin McNelis <kmcnelis at nmsu.edu>
> Cc: Triumph' <triumphs at autox.team.net>, '6 Pack list'  
> <6pack at autox.team.net>,  'list
> Subject: Re: [TR] [6pack] waterless coolant
>
>
> Kevin McNelis wrote:
>> Maybe I'm being a bit dense here, but didn't old VWs use AIR as a  
>> coolant??
>>
>>
> Oh, yes, true for the pre-1980 engines in Bugs and vans, but, I  
> think the reference is to the so-called Wasserboxer engines in the  
> Vanagons.  Those engines initially used a water/glycol mix which  
> encouraged corrosion in the aluminum alloy used in the block and  
> heads, which largely showed up as erosion of the material in the  
> seal lands and leakage around the coolant o-ring seals between  
> block and head.
>
> Thus a revised coolant (and block material, I think) to correct the  
> problem.
>
>
> Cheers.
>
> -- 
>
>
> Michael Porter