The small end links to a gudgeon pin in the back of the piston, with a bearing to allow it to change angle as the crank rotates, and the big end wraps around a crankpin so it can spin 360 degrees ...

I have either a piston slap or a gudgeon pin noise in my 1970 Ford Escort with the Kent 1.3-liter engine. I use 20/50 multigrade engine oil. I appreciate any advice you may have. Sajeev answers: In my ...