Balancer is "friction welding"

Reed Granrt · 08-22-2011, 11:32 AM

I would like to offer and opinion or opinions as I feel u may have two separate problems. It doesnt mean you do have two problems but you COULD. That is all I am referencing. We have all seen particular anomalies when we make changes and get results that we had not seen before.
With your changes you've seen in the valve area this could be a result of where you made a spring change and as a result, moved the rpm of where you picked up harmonics or even spring float that you had never experienced before. Any time you make a spring change, especially when the spring has physical changes, you can alter the rpm where harmonics can or cannot start. Even within a production run of springs, there can be a slight change of rpm harmonics.
Now on the harmonic balancer and or balance. Call ATI and you will find that they will tell you their balancer should be rebuilt ever so often. Also each harmonic balancer(whether it be 2 ring , 3 ring or more)is designed to work in a different RPM range. Also as the elastomers get older, you can see a change in the rpm that the balancer works so again my recommendation is call ATI for what you are doing.
These are strictly observations from the limited data you have given and most definitely not the gospel but may provide you some thought points.
Good luck

08-22-2011, 11:32 AM	#7
Reed Granrt Member Join Date: Jul 2011 Location: Murfreesboro, Tn Posts: 149 Likes: 0 Liked 1 Time in 1 Post	Re: Balancer is "friction welding" I would like to offer and opinion or opinions as I feel u may have two separate problems. It doesnt mean you do have two problems but you COULD. That is all I am referencing. We have all seen particular anomalies when we make changes and get results that we had not seen before. With your changes you've seen in the valve area this could be a result of where you made a spring change and as a result, moved the rpm of where you picked up harmonics or even spring float that you had never experienced before. Any time you make a spring change, especially when the spring has physical changes, you can alter the rpm where harmonics can or cannot start. Even within a production run of springs, there can be a slight change of rpm harmonics. Now on the harmonic balancer and or balance. Call ATI and you will find that they will tell you their balancer should be rebuilt ever so often. Also each harmonic balancer(whether it be 2 ring , 3 ring or more)is designed to work in a different RPM range. Also as the elastomers get older, you can see a change in the rpm that the balancer works so again my recommendation is call ATI for what you are doing. These are strictly observations from the limited data you have given and most definitely not the gospel but may provide you some thought points. Good luck