Ask Away! with Jeff Smith: How to Set Preload on Hydraulic Lifters — and Why It’s Important!
I just installed a new cam in my small block Chevy. The engine runs great, but I’ve noticed that at idle and at some cruising speeds the engine makes a noise that sounds more like a mechanical lifter camshaft. I bought a hydraulic flat tappet camshaft but this one sounds more like a solid lifter
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