Total Seal piston rings
I recently used Total Seal piston rings on an '87 mr2 engine rebuild. After 3k mi I still had excessive oil consumption and was getting serious carbon buildup. I tried a couple things to aid seating the rings but eventually tore it down again. The rings were shot. I had used a 200 grit hone instead of the required 300grit. Problem corrected - 3k mi later I have the same symptoms. Anyone have experience w/ TS rings on these engines before I tear it down again and go back to stock rings?
What was your ring end gap?
might not be the rings, valve guides could be worn letting oil through.
Search Toyota MR2 Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Toyota MR2 Experts