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4 MAINS V8 · 03-01-2018, 08:22 AM

Presume the 30 thou gap is the ring gap when the loose ring is positioned squarely in the bore. If you use 40 thou over rings in the same bore the gap will decrease too much.

03-01-2018, 08:22 AM	#4
4 MAINS V8 Member Join Date: Aug 2012 Location: HINCKLEY UK Posts: 51	Re: Piston rings and size . Help Presume the 30 thou gap is the ring gap when the loose ring is positioned squarely in the bore. If you use 40 thou over rings in the same bore the gap will decrease too much. Last edited by 4 MAINS V8; 03-01-2018 at 08:32 AM.