Rod Balancing DIY?, end-to end Options

[malcolm2]

Rod Balancing, End-to-end. I also wondered how in the hell do you balance END-TO-END.

I found this 20 minute video (balance at 6 minutes) where he hangs one end on a nail and puts the other end on the scale.... weighs each rod and compares, removes material, repeats....

is that the way to do it? Good way, Bad Way???

This link and the embedded vid starts at 6 minutes.

https://youtu.be/U3IXSywgTnM?t=386


https://www.youtube.com/watch?v=U3IXSywgTnM?t=389

[gereed75]

When rebuilding my motor I tried very hard to do this including building a DIY balance rig. I could never get consistent weights that I trusted. I ended just balancing overall weight.

Not saying it can’t be done. If you look at the geometry a small amount of variation in how the rod sits in the rig will effect the weights, especially in the gram range.

Maybe someone can chime in with better results. Good luck.

[barefoot]

When rebuilding my motor I tried very hard to do this including building a DIY balance rig. I could never get consistent weights that I trusted. I ended just balancing overall weight.

Not saying it can’t be done. If you look at the geometry a small amount of variation in how the rod sits in the rig will effect the weights, especially in the gram range.

Maybe someone can chime in with better results. Good luck.

I tried the end to end also and could not get consistent readings, so just balanced overall weight. I matched pistons & wrist pins also and had access to a lathe so put small chamfers in a couple pin end ID's to get needed weights.