Original piston assembly weight 256.4g
![](https://i.imgur.com/jat90wH.jpg)
New piston assembly weight 200.7g. Looks like we're saving about 0.75 lb on the rotating mass.
![](https://i.imgur.com/8hjw19Y.jpg)
Rod bearing shells are the right size. Unlike the 1st build :-)
![](https://i.imgur.com/ivBtcmp.jpg)
We dorked around forever installing the first set of rod pin clips. You know the drill: sore thumbs, clips flying across the room, crawling around the floor looking for lost clips. So, we made a tool that does it in 10 seconds.
Get a thin wall tube about 0.85" in diameter
Cut it off about 4" long
Get a solid plunger that fits inside the tube
Insert ring in tube a shown
![](https://i.imgur.com/3I4WwnM.jpg)
Insert wrist pin temporarily. It gives the clip a surface to push against.
![](https://i.imgur.com/D2iqSaE.jpg)
Put tube perpendicular to piston with gap up
![](https://i.imgur.com/IdoD1hR.jpg)
Insert plunger. Press down with smooth firm motion. Ring will click when it seats
![](https://i.imgur.com/OHurIef.jpg)
Voila
![](https://i.imgur.com/DxAwPDI.jpg)
Slightly remove pin. Insert rod. Repeat on opposite side.
![](https://i.imgur.com/YIJoawq.jpg?1)
More next time
![](https://i.imgur.com/jat90wH.jpg)
New piston assembly weight 200.7g. Looks like we're saving about 0.75 lb on the rotating mass.
![](https://i.imgur.com/8hjw19Y.jpg)
Rod bearing shells are the right size. Unlike the 1st build :-)
![](https://i.imgur.com/ivBtcmp.jpg)
We dorked around forever installing the first set of rod pin clips. You know the drill: sore thumbs, clips flying across the room, crawling around the floor looking for lost clips. So, we made a tool that does it in 10 seconds.
Get a thin wall tube about 0.85" in diameter
Cut it off about 4" long
Get a solid plunger that fits inside the tube
Insert ring in tube a shown
![](https://i.imgur.com/3I4WwnM.jpg)
Insert wrist pin temporarily. It gives the clip a surface to push against.
![](https://i.imgur.com/D2iqSaE.jpg)
Put tube perpendicular to piston with gap up
![](https://i.imgur.com/IdoD1hR.jpg)
Insert plunger. Press down with smooth firm motion. Ring will click when it seats
![](https://i.imgur.com/OHurIef.jpg)
Voila
![](https://i.imgur.com/DxAwPDI.jpg)
Slightly remove pin. Insert rod. Repeat on opposite side.
![](https://i.imgur.com/YIJoawq.jpg?1)
More next time
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