CRT piston rings??

**nelson edens** · 04-05-2021, 10:38 AM

What piston rings should be used in CRT pistons (steel bore)

thanks, Nelson

**HStream1** · 04-06-2021, 05:39 AM

Nelson the CRT pistons use mercury rings.

**gmorgan** · 04-08-2021, 09:36 PM

Nelson, I have been using a set of rings on my CRT pistons for a year and a half in my steel bore motor. You need to contact Dean Pink at Wizard. He has what you need. I promise this is the way to go.

**nelson edens** · 04-09-2021, 01:41 PM

thanks Bud. I confirmed that the Mercury rings fit. The Wizard rings do NOT fit. I have some of both. I am actually using PRO Marine 481 rings (steel sleeve motor) modified to fit the top pinned CRTs.

**HStream1** · 04-09-2021, 02:04 PM

No problem Buddy!! The Wizard Piston Ring Groves and Their Rings have a different angle cut than the Mercury and CRT's. They will not work PROPERLY. CRT copied Mercury's Ring Groove profile.

Originally Posted by nelson edens

thanks Bud. I confirmed that the Mercury rings fit. The Wizard rings do NOT fit. I have some of both. I am actually using PRO Marine 481 rings (steel sleeve motor) modified to fit the top pinned CRTs.