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Human life is over-valued


pmccarthy

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I find the  ' drs  ' stethoscope ' is no good to hear a heart ,

as it doesn't improve the sound .

An amplified microphone will give marvellous rendition of any heart malfunction. 

But , that OLD mechanics stethoscope Will find that squeaky bearing every time .

spacesailor

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"SQUEEKY Wheels get attention first. You can pick a "Shot" bearing by when it knocks. Listen after you change the filter and before the oil gets there, for a start.. Short a plug out to get a big end knock. Main bearings knock under load..  Nev

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I knew a gun Holden mechanic in the late 1960's, who could pick up a worn big end by "floating" the bearing load. He'd run the engine up to about 2000RPM, then lower and raise the RPM just a 100 or 150RPM each side of his chosen throttle setting. It was interesting hearing the bearing knock, as he did this.

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