hello, i have a d16a9, i changed my pistons rings using the d15b ones, it keeps going bad and car started to smoke after a week, i did changed it again, same things happens after a week, are piston rings interchangeable?

 

have your ring supplier cross reference the part #s, but from the sounds of it either there is another problem (the cylinder walls or pistons) or the rings are not interchangeable.

 

thats what i'm asking here, are they interchangeable?!

 

r they?

 

no answers?! what piston rings to use while swapping a zc pistons on a d15b vtec?

 

I'd measure the pistons up n down / all around to see if they're out of round

then measure the bore to check taper

run your fingernail in the bore - if anything catches, it needs to be machined

Sometimes if you use MOLY rings w/o the correct fine finish hone, the rings don't seal

if everything checks out and the cross hatch marks are still visible, I'd go for some cast iron units and see if that changes anything.

Good luck