Looking around located the following article;
"How It Works: Viscous Dampers, A.K.A. Harmonic Balancers"
at URL: http://www.dieselarmy.com/engine-tech/engine/how-it-works-viscous-dampers-a-k-a-harmonic-balancers
A Good Article to Read.
Regards
Joseph
"How It Works: Viscous Dampers, A.K.A. Harmonic Balancers"
at URL: http://www.dieselarmy.com/engine-tech/engine/how-it-works-viscous-dampers-a-k-a-harmonic-balancers
A Good Article to Read.
Regards
Joseph