Started gapping my piston rings.I'm using a summit piston ring filer and was wondering about the filed side of ring being square. Squeezed ring together and held up to light noticed that my file job wasn't exactly perfectly square.Very tiny tiny amount of light showed me this. Gap itself is perfect at .016 for top ring as per je piston instructions of bore x .0050 for top ring. my bore size 3.287 x .0050 = .016. Is this acceptable or did I mess up already, two rings into process.
Piston ring gap
- Thread starter suprarenz
- Start date
I use 4 thou per inch of bore for top rings and 5 thou per inch for the 2nd ring, if it's going to be a 500RWHP build I'll add 4 thou to each total to stop it nipping up a ring when pushed hard.
As long as the ends are squarish and not 40/10 thou gap it should be ok, remember to dress up the filed ends with a stone or a diamond file.
As long as the ends are squarish and not 40/10 thou gap it should be ok, remember to dress up the filed ends with a stone or a diamond file.
I used IJ's recommendation with great success. top ring at .017, 2nd .021 and oil at .016-.017. Only used WD40 to lube pistons. That was with 0.5mm or 0.020'' oversized pistons.
You guys are awesome!!!!!!!! Loven the input and i have to tell you I've already mess up on a ring cut too much off. Have to get in touch with je and order new ring.
Guys my build is going to be a basic beginner first time build will using your recommendations make it easier to upgrade later??? Hope this isn't a crazy ???
Guys my build is going to be a basic beginner first time build will using your recommendations make it easier to upgrade later??? Hope this isn't a crazy ???
