why is there a rebate on piston rings?

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why is there a rebate on the second piston ring on automotive pistons?

2007-08-09 11:14:50 · 4 answers · asked by zpowerdave 1 in Cars & Transportation ➔ Maintenance & Repairs

Duh, do you know what a rebate is?

2007-08-09 11:20:04 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Original piston rings are plain, replacement rings have a bit of the edge removed so that they don't hit the wear ridge on the cylinder bore.

2007-08-10 10:15:19 · answer #2 · answered by The original Peter G 7 · 0⤊ 0⤋

It is generally referred to as a scraper ring. It removes excess oil from the bore.

2007-08-09 12:41:30 · answer #3 · answered by GEORGE S 3 · 0⤊ 0⤋

You have no idea what a piston ring is do you?

2007-08-09 11:38:23 · answer #4 · answered by Anonymous · 0⤊ 0⤋