If for some reason you disassembled a Toyota engine just to put it back and hope it will still work, here’s a short tutorial on how to check the piston rings gap tolerance, which will tell you if the ...

Regulating heat and pressure inside an engine is necessary for its healthy operation. Piston ring end gaps play a vital role in that, but they can be easily overlooked as a minor measurement. In ...

Few processes in assembling an engine are as tedious as filing piston rings. It requires patience and precision, carefully fitting the top and middle rings to each bore. It's not something for an ...

When I got started in this business over 30 years ago, the common practice was to run tighter piston ring gaps on the second compression ring as compared to the top ring. It was thought that the ...

Unless you drive a Wankel rotary, your combustion engine vehicle has pistons, and each of those pistons has three rings. Why ...

If you’re like many of us, you don’t spend a lot of time thinking about the pistons in your engine. Most of the time you don’t need to, but there are times when burnt, scuffed, or cracked pistons need ...