Fluid Damper

volaredon said
I've thought about a fluid style damper but don't know enough about them to spend that much on one.in the past when I have had a bad damper I've headed to the junkyard and gotten my replacement
But as luck would have it they don't have a single forged crank slant 6 in the yard right now.
So I sent that one in and a 318 one for my son to go on his internal balance 408

a B damper will fit a slant. But good luck finding a B/RB in a boneyard these days. It will stick out like 1.5 inches more though.

Bewy said
One wonders how these dampener companies can get these measurements soooooo wrong. They are just simple measurements....

I dont think they get them wrong as all their production is highly (probably 100%) CNC automated. I think its user error in understanding how tight these need to fit. Snout shape/eccentricity of 50 year old crankshafts is probably all over the board too with prior balancer hammered on or installed dirty. If you hone out a balancer to fit, you may be defeating the design of the fit classification for harmonic transmission from crank to damper. Question: how does tooling sharpness affect CNC production? Is the cut/material measured or is the tool depth measured? I'm thinking the latter but there has to be a QC step to determine if the cut is accurate?