Re: wisconsin tjd
Soak it in diesel fuel a day or two. Try heating in a deep fryer at about 350-400 degrees with peanut oil. This should expand the aluminum enough to free the rings without hurting anything. Install a ring compressor and try to rotate it to break it loose. If this fails, take a razor saw and cut the piston away from the ring/rust matrix around the top of the ring land. Then recut the land to a standard size and fit the ring with a standard ring spacer.