On Thu, 13 Jan 2005 21:57:32 +1100, "David Flew"
wrote:
///
So the problem is to remove the rust without taking everything apart. And
ideally without doing too much damage to the casing..
So I'd suggest the water blaster, used to remove and dislodge loose rust
without damaging the casing too much. With some vigorous use of a hammer on
the bottom edge and trying to push the keel UP a little, trying to make some
space for the rust to fall out - followed by more water blasting, repeat
until no more rust is dislodged.
Then I'd think about trying to dissolve or break up the rust chemically -
don't know about the whey idea, but perhaps phosphoric acid.
///
Good luck !
David

Another tried and trusted rust breaker is saturated salt in vinegar.
It can be cheaper than Phosphoric, and it is slimming, Where
phosphoric leaves a phosphate coat, salt n vinegar leaves shiny
metal..

Brian Whatcott Altus OK