More Flywheel Questions

1. What is the weight of a stock flywheel for a Farmall H? Is the H flywheel balanced or unbalanced...what I mean is, is there one area heavier than the rest (unbalanced), or is the mass equally distributed (balanced)?

2. On diesel engines, such as the 7.3 liter Ford/IH truck engine [and some gas-engine Porsches], they use what's known as a "dual-mass" flywheel; What exactly is the "dual-mass" principle, and why is it advantageous to this engine?

I'm not trying to start any fights here; I just want to learn something that I might be able to apply on my own.

--Buzzman72

Usually you can look at a flywheel and tell wheather or not it is internal or external balanced. If you stick a broom handle through it and it always turns with the same spot down no matter where you start from then you can bet it isnt a zero balance flywheel. Another good indicator is alot of metal removed from one spot, or a lump cast into the flywheel on the backside. Zero balance flywheels are easy for a machine shop to copy out of a solid piece of steel and to remove metal from the backside and lighten in the process makeing for a much safer flywheel experience.

Again as the post above, this subject has alot of opinions but safety should be considered first. We have all gotten away with doing things we shouldn't and in some cases for many years, still doesn't make it safe. If we hurt ourself then our family hurts. If we hurt others then alot of families hurt.

Besides, I was figuring on just stretching the H tin a little...just to watch people's reactions, and to see if I could hear the wheels a-turnin' as they're thinkin': "Naaaaah...that ain't factory...or is it?...Couldn't be...But..." and so on and so forth. A blown mind is a terrible thing...so don't waste it!