My Pete rebuild

[pearce trucking]

(08-06-2018 )dhirocz Wrote:  

(07-29-2018 )same101us Wrote:  Has anybody ever heard of balancing the rods and making them weigh all the same?

I considered this. Problem is, what most people consider balancing is 'weight matching', which is only beneficial for certain things. Not a connecting rod. You have big end and small end weight to worry about because of the physics of a running engine.
On top of that, the real benefit would come from a good dynamic balance, which involves weighing all the pieces as a group, weight matching to the lightest piece, until all of the rotating parts are identically weighed. Then the crank can be balanced...yet another problem.
Not only do you need to remove the crank for this, but the vast majority of shops that can balance engines don't have machines that can handle cranks like the ISX...
I've found only one shop on the east coast that claims they can do it, that I've by chance personally used. I want to, I remember hearing of how smooth they've made some heavy diesel engines run by balancing and how far off the balance is on some...theyve balanced some engines for me before (but not of this size)but since it requires the crank to be pulled...that's still asking alot though.

On my other thread I posted pics of 2 rods that had marginal piston pin bushings. Do you see any balance issues replacing just 2 rods? I have saw cut and will replace with saw cut.