Yes I know this is an old thread, but it is about improper Episan deck heights and to
provide "heads up" information!
Here's two pics taken yesterday of a Northwoods Saw supplied Episan #1166 "Stihl 056" 52mm windowed style piston
on the bottom, and the Stihl OEM Mahle piston on the top, sharing the same connecting 13mm wrist pin. This is probably a
mislabeled 064, as the deck height is .045" taller (would not turn past TDC)...but the wrist pin hole is 13mm.
Might make a good pop up piston, but the skirt on the Episan is way short too, compared to the OEM Mahle. I thought
that 064 had 12mm WP, these are both 13mm. S056 & the Episan are 1.5mm rings, not the 064 1.2mm.
The wrist pin in the kit was a 12mm and thus 1mm too small to fit...confusing at best. Apparently Northwoods
isn't inspecting the kits they sell. It's going back to Sal for a refund.