[Farmall] 1925 M/D 10-20

[Karl Olmstead]

James, remove the sparkplugs from your 10-20, and wait for nightfall.  Take 
a powerful flashlight out with you, and shine it into the sparkplug holes. 
You should be able to see the opposite cylinder wall.  It wouldn't be 
surprising to find three good cylinders and one rusty one.  That'll be the 
stuck piston, and you will be able to see just how much rust has 
accumulated.

While you're at it, squirt some oil, ATF or penetrating oil in each 
cylinder, put the plugs back in, and let the engine set for a few days 
before you try unsticking it.

The rules are different for old tractors vs. antique cars.  In general, no 
judging takes place at tractor shows, so the atmosphere is much less 
competitive than it is at car shows.  A tractor with all its original decals 
in place on old paint is looked upon as a historical treasure, not an old 
tractor with ugly paint.

-Karl