Thread: Engine noise...

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TCI typically makes a good product.

"The Rattler® a pendulum absorber developed to control amplitudes of vibration and angle of crankshaft twist like no other design. Its ability to absorb rather than dampen is the key to its success. The Rattler® is effective for the entire RPM range, and extends crankshaft and bearing life."

"Inside the Rattler® are steel rollers that fit loosely into a specific number of holes. By using an exact mathematical relationship, the rollers will roll forward during compression strokes and roll backward during the power stroke to keep the engine speed variations and vibration, to a minimum."

"The only time you may hear the Rattler® is when starting and stopping the engine. When you hear the slight "click" you know the Rattler® is ready to work. The slight noise could have been eliminated but TCI® decided to keep it as a distinguishing trademark."

So - it may have been working correctly. It's too bad your builder didn't explain the nuances of the thing - the noise would have caused me concern as well. Knowing what it is, you may want to rescue it from the trash.

Regards,
Glenn

I did a little research on the rattler, myself. That all sounds good, when explained, but I think I'll stick with a nice 7" conventional balancer. Thanks for the input.