Planning on installing an aluminum radiator on my 52 3100. The manufacturer calls for isolating the radiator from the radiator frame as a means of reducing vibrations to the radiator. I tried a rubber washer that is .12" thick and that just does not seem robust enough (see enclosed picture). Some people have sugggested that I need to add a metal washer to front and back of the rubber washer in order to achieve acceptable levels of isolation. I also searched McMaster web site for appropriate isolators but did not find anything that seemed appropriate. What ever solution is seclected, I am trying to keep the distance from the radiator mounting fins to the back face of the radiator frame, to a minimum.
I could benefit from the experiences of others who have successfully navigated this path, or who have knowledge of how to achieve effective isolation of radiator from radiator frame.
