Thread: Hydro Lifter Noise
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Old 04-13-2021, 06:05 AM
blykins blykins is offline
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The biggest contributor to the noise is the cam lobe shape. A lifter in and of itself is not noisy, but if you have a quick cam lobe that is shocking the valves open and slamming them shut will not be quiet.

Most hydraulic rollers will have a bit of a sewing machine sound and it will go up from there to downright annoying.
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