[SEL] Petter AV2-M Restore, progress report No. 3

[Arnie Fero]

Curt,

Did Frank say that this engine had an aluminum block and/or aluminum piston?
I wonder of the "firepit technique" might render his key parts blob-like?

I think Leroy Clark had the same sort of success with fire that you describe.  I
think he went a bit further and used a shop vac as a blower to speed the process
along.  Same result though.  Cherry red engine that came apart nicely after it had
cooled.

See ya,  Arnie

On Fri, April 24, 2009 10:54 am, curt at rustyiron.com wrote:
>
> Enjoying hearing your progress on this project. Looked at your website
> too. Be sure and photo document the project onto your website. We enjoy
> the photo progressions.
> I've done some experimenting with impossibly stuck parts by placing them
> in my wood stove in the evening as I load it for the night. I'll place the
> part in the ample bed of hot coals, and then load the nights wood on top
> of that. The fire burns all night and I'll let the fire go out all
> together. The next evening retrieve the cooled part from the ashes. Loose
> parts....works every time!
>
> Now it would take a healthy wood stove to put your Petter cylinder in, but
> maybe you could build something using a 55 gallon drum, or maybe a fire
> pit in the ground. It's going to need to get really hot, and then cool
> very slowly to prevent any damage. I bet this method will work for you.