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engine knocking sound

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    Belches out exhaust smoke from valve cover breather and oil dipstick tube. Exhaust is not black or white. I finally did a compression test this weekend. Cyl: 1 - 180 2 - 160 3 - 160 4 - 185 5 - 185 6 - 170 7 - 160 8 - 170 The engine has slight knocking sound on start up, idles smoothly when...
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