everytime they've resized my conn rod, all 8 got worked. They grind a small amount off of the cap, and make the opening smaller, then open it up to the correct diameter.I think I can put my imbalance theory to bed.
SCAT only makes 1 cast 3.5" crank, and it's 28oz external. the flywheel was from the old motor and works fine. I double checked the damper p/n and it's for sure a 28oz damper. The parts are all correct in that regard. I'm headed home in a few minutes to go cut the filter open
He did resize the rods, there were 3 that needed some work.
The balance is the issue I think. I can honestly say I didn't know. I thought 28oz was 28oz. I mean... say you get a new flywheel on an engine that's been running for a while. Do you have to pull the whole engine apart and rebalance everything? Same for a balancer... The old one disentegrates and you replace it. Pull the whole engine apart again? That doesnt make any sense to me.
As for your vibration, if you have a rod bearing leaving you, then that rod is what you're feeling I think, unless it was that way from minute one.
I realize that this is a big pita, but Think about this, it's how I rationalized pulling my engine out to fix the leaks..
How much time does it really take?
A day to pull it?
A day to pull it apart?
A day to get it to a place to fix it?
Then reverse the process..
A week out of your life doing car guy stuff.