Originally Posted by
gpm-parts.com
No, the pin was completely open. I remember it as I had a hard time try to remove it as I don't want to damage the hole in the piston or the rod bushing.... But it maybe a side exhaust engine for my bike or helicopter.....
Originally Posted by
wingracer
Yeah, has to be a side exhaust engine then.
Now I remember I also used to have an OS max side exhaust in my PB International (long time ago). The liner in this engine was rotated by some degrees, in a way that the piston pin could move in between the ports of the liner, so it even did not have piston pin clips!....