240 efi piston lock ring

[busterthejetboater]

Hi All

Just a quick one. A mate of mine (actually a friend of a friend of a ......) has new OEM Mercury 53-857196 lock rings as used for the OEM Mercury pistons. He also has a set of WSM pistons that do not have lock rings (?).

Can these Mercury lock rings be used on the WSM pistons?

What is the best/recommended position to fit the rings? When I built my engine I put the split of the ring directly across/opposite the slot/groove that is used to pry out the ring. I also used my thumbs to push in the ring but Jake wants to buy or make a tool for this. Any suggestions?

Thanks.

 

[Dr Honda]

This is the 2-stroke section, and you are asking a Merc Question. I'll move it for you.

But... as I recall... the Merc and WSM clips are different sizes, so I wouldn't mix them. They do make a tool to install them, but its not hard to put them in by hand. Put the back side in first and snap the edges in.