ORIGINAL: arobatx
Thanks for clarifying that PE....I think my head was in ZDZ80 land, where the pin is opposite the exhaust port. Interesting Charley notes that his older piston ring groove is not pinned...
Argh! I blew it on that one! Sorry. When I saw Pe's post I looked at the piston again and rotated the ring whilst looking in the groove. Sure enough, there's a pin.
On your piston, where does the ring gap fall in the sleeve?
CR