[Spridgets] Another barn find... MGA

[corvallis at peoplepc.com]

I had some frozen aluminum pistons in a Mercedes engine years ago. I wanted
to save the pistons. Pulled the head and tried all manner of solvents and
oils. Pounded on them with a wooden block the size of each piston and heated
the pistons from the top. Spent a month on the project. Finally put dry ice
on the top of each piston and got them out. The piston ring lands had turned
to powder given the years; aluminum oxide. ...bill in corvallis
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-----Original Message-----
From: spridgets-bounces at autox.team.net
[mailto:spridgets-bounces at autox.team.net] On Behalf Of Richard Kleihorst
Sent: Monday, June 07, 2010 4:50 AM
To: spridgets at autox.team.net
Subject: Re: [Spridgets] Another barn find... MGA

Hi,
 
I once had frozen pistons on a landrover. I basically took off the sump and
disconnected the conrods. Turn the crank a bit and with a piece of wood  tap
the pistons from above downwards. This will loosen them up and after
cleaning
up the bores a bit you can push them
up to get them out. Afterwards I just honed the bores and placed back the
cylinders with new rings. The bores turned out to be in good condition
afteralI. did this outside on a saturday afternoon and the car has been
running well before I sold it to the scouting.
Take care though to not have any grit, sand, rust get into the crankshaft
area
or oil lines.  

Richard
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