Does anyone know if the width of the top piston ring on 2.1 are wider
than the 1.9's.  The top rings on my 2.1 are looser in their lands than
the ones on my 1.9, yet if I take the top ring from the 2.1 and put it
in my 1.9 piston it is tight like it should be.  The PO of my 2.1 said
he put new ring on it and I'm wondering if he got the wrong ones or if
the pistons are worn out.  Thanks 

Pascal