I was pretty fresh out of vocational school for auto mechanics back in '78 when I started working on co-workers cars. This one car had a weird sound that I couldn't determine what it was. I went to an old-school mechanic friend of mine. He took a length of heater hose and put one end to his ear and started listening around the engine for the source. Within a very short period of time he determined that the spacer block between the intake manifold and the carburetor had a leak in it. Sure enough. I went into town, bought a new one, slapped in on and it solved the problem. I was so impressed that he diagnosed it so quickly with such a "crude" tool. To be "book smart" is one thing but to have real-world knowledge is even better!
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