> -----Original Message-----
> From: Jack W Drews [SMTP:vinttr4@geneseo.net]
> Sent: Wednesday, January 06, 1999 6:29 PM
> To: shop-talk@Autox.Team.Net
> Subject: separating aluminum and steel parts
>
>
> I am working on the restoration of a 1930's vintage classic car. I am
> trying to remove the quite large aluminum heads, each secured to the
> block with 21 studs, 1/2" diameter. As you can imagine, electrolysis has
> had sixty years to do its thing with the studs and the aluminum head
> casting. The pistons are frozen in the bores so I can't use the rope
> tricks or compression tricks.
>
> After three days of attacking it with slender wedges of all
> descriptions, vibratory tools applied to the studs, and so-called
> "penetrating" oils which really don't, I humbly ask the list's
> collective wisdom: What are the current methods for separating
> aluminum/steel corroded joints?
> --
> uncle jack
> Happiness is a warm garage....
I've luckily never been in your bind yet, but I've used the "heat aluminum,
freeze steel" trick to get bearings seated. Maybe you might have some luck
carefully locally heating and cooling the heat/block?
Good luck,
Mike
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