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06-24-2014, 02:46 PM | #4 |
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Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: Lifter and valve noises..? Low profile covers an issue?
I had to use spacers on a motor that had roller rockers. I'll stick a photo below. As you can see I was trying not to draw attention to them.
But for stock rockers, unless the baffles or drippers or something are bent, it should be fine. You might want to get a mechanics stethoscope, or even a piece of PVC pipe and listen and see if you can narrow down the location. Also feel along the valve cover; if you feel any tapping, there's something interfering. However, when you see hoof prints, think horses, not zebras. Maybe there's something simpler, like a dirty lifter or loose rocker? All my big blocks are quiet, or at least quieter than everything else going on when they're running!
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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hydraulic, lifter, stuck, tick engine |
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