Hi I am in the midst of changing the piston ring for my testarossa and I have ordered a set of piston ring from AWitalian . Has anyone installed these before ? The shapes are different to the original and I just want to make sure these are okay to be installed . Pls share your experience and thoughts . http://www.awitalian.com/Ferrari_121531_Engine_Piston_Ring_Set_std_121531.html Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Sent from my iPhone using Tapatalk
You mean a whole set of rings and rebuilding your engine? Newer style rings can differ in the oil ring especially. Did you get your cylinders nikasil coated again?
Yes correct , I have oil leak to piston due to the piston ring so I am changing all of them . I am not sure if the newer octagon style piston ring fits well as the original testarossa ring is round . No I didn’t get the cylinders coated . Sent from my iPhone using Tapatalk
Never seen a Ferrari 4 valve motor that needed rings. I had a friend with over 250,000 miles on his TR and it didn't need rings. If you are not getting it I am very dubious of the diagnosis.
I think more the oil usage comes from the valve seals before you install the rings check the gap when the ring is in the cylinder as I know only the latest cars ( 512M ) had nikasil and for those you need other material for the rings
So does that mean I need to do Nikasel costing for my cylinder also ? The oil ring shape that I show looks very different to original size , anyone tried to install it before ? Thanks Sent from my iPhone using Tapatalk
With Porsche’s of the same era with nikasil, all you do is gently scrub the nikasil with warm soapy water and a scotch guard pad to get new rings to seat. Lots of info on the Porsche sites. Just wrapping up a 930 build right now...
