I've had to use a sledge before, but I don't think mine was as stuck as yours
sounds. Once they broke loose I was able to drive them up. I've read that on a
really stuck block to sit the oil pan surface on blocks and wail away with a
sledge and 3 inch drift, driving them out the bottom, breaking off skirts as you
go. Driving them up can result in just poking holes through the piston. While
the
explosive method sounds like great fun I would be afraid of harming the block,
not to mention bystanders. Also you would have to explode them out the bottom
with enough force to break the skirts off in the process.
BTW I saw an ad for a 270 in Idaho for sale, mail me if interested and will
try
to look it up.
Grant
50 Chevy 3100
52 GMC 150
CLLLSLS@aol.com wrote:
> Hey everyone,
>
> Finally found a 270 GMC. It's in excellent shape for being outside with no
> head for 20+ years. Got the crank out with thousands of blows with a big dead
> blow and a quart of aerokroil (Damn good stuff!), but the pistons are rusted
> in the bores so tight they might as well be considered cast in there. I need
> to reuse the rods, so destructive piston removal methods can't be too
> destructive. I've heard of putting the head on the engine then filling the
> chamber with acetylene/oxygen, replacing the spark plug and igniting with BBQ
> ignitor. Or freezing the pistons and breaking them apart. What's worked for
> you guys? I really don't feel like missing with a 12 pound sledge and taking
> off a corner of the block. There's gotta be a better way. Please help.
>
> Dustin
> 50 & 53 GMC 1/2 tons
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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