I am putting big bore kit on my RGS and comes with CP forged pistons but the circlips to put the pistons in is a royal pain and can’t get them in. They are unforgiving and don’t bend.

anyone have any tips or know of tools that can help? I already tried screwdriver

 

Force one end into the groove, and use a small screwdriver (you know the kind with the tiny magnet at the handle end that are often freebies with a company name on them) to follow it through, but it will be a pain in the thumb for sure.

I have searched for a tool that will install the M8 wrist pin clips, with zero success.

 

I’ve Tried there is no give in these clips.

 

I don’t come to the forums much anymore but I recall a video and the guy used a screwdriver and a plastic wedge.

 

If you haven't already, cover the holes in the cases to prevent a clip (or anything) from falling into the cases. It can be very difficult to remove if one of those clips falls in.

As Dan said, place one end of the clip in the groove and use a small screw driver to work the rest of the clip into the groove. Do not bend the clip or the clip may not have enough spring pressure in the groove to stay in place. I usually install one clip on the bench and slide the pin from the other side, that way there is only one clip for each cylinder left to install. Might give you a better feel for what it takes. And, be sure the ends of the clip are not aligned with slot in the piston that is used for removal.

Jims makes a tool for the M8, but I'm sure there are others. I suspect any tool for the same size diameter wrist pin would work, but it should not require a lot of force or something is wrong.

https://www.jimsusa.com/wp-content/u...10/5805-IS.pdf

Paul

 

That Jims tool is for removing the wrist pin...

 

I did a quick search and found this. I haven't used them before but judging by the video and the cost I will be trying them on my next build. The last few clips I've had to install really ate my lunch.

 

Correct as usual.

Paul

 

I take it those are the standard circlips and not the spiral locks, you can use a 3/4" swear copper coupling and push the Circlip inside the coupling.. Then put the coupling up to the piston and with the proper size deep socket (that fits inside the coupling without to much slop) push the Circlip into the piston.. That simple and works like a charm..