Following are photos of the piston crack:
The crack is just to the right of the red mark, under the compression ring. Doesn't look like much...
...so you use a screwdriver blade to deflect that part of the piston up and this is what you get. (Ice cream stick used as a wedge.)
Then deflecting it down. The red mark to the right indicates the point at which deflection was no longer easy, though it is logical to assume the crack extends a little farther.
The top of the piston. The visible crack is shown by the little yellow mark between 12 and 1 o'clock. The last point of deflection is anti-clockwise to near the 10 o'clock location.
Last edited by LJClark on Mon May 20, 2013 2:10 am; edited 1 time in total