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techtalk:ref:tools108 [2019/03/24 19:22] hippysmack [Stethoscope (and other listening devices)] |
techtalk:ref:tools108 [2019/03/24 20:37] hippysmack [Stethoscope (and other listening devices)] |
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Sound, and it's interpretation, is a totally subjective thing. \\ | Sound, and it's interpretation, is a totally subjective thing. \\ | ||
What 'sounds' bad to one doesn't to another. \\ | What 'sounds' bad to one doesn't to another. \\ | ||
+ | You'll here noises from all over the engine. ((Ferrous Head of the XLFORUM http://xlforum.net/forums/showthread.php?t=977525&page=4)) \\ | ||
+ | The trick is being able to decipher which ones come from where and if they sound correct or not. \\ | ||
+ | Unfortunately, experience is the best teacher here and you do need a known good engine as a reference point. \\ | ||
However, this method can be used to hear differences in moving parts in the engine. \\ | However, this method can be used to hear differences in moving parts in the engine. \\ | ||
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Or, bite the bullet and take it to an experienced wrench with enough experience to at least narrow things down a bit. \\ | Or, bite the bullet and take it to an experienced wrench with enough experience to at least narrow things down a bit. \\ | ||
But that may also be a subjective opinion. \\ | But that may also be a subjective opinion. \\ | ||
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+ | This method is also good for detecting air leaks. \\ | ||
===== Stethoscope ===== | ===== Stethoscope ===== | ||
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|Mechanic stethoscope. ((photos by asasial of the XLFORUM http://xlforum.net/forums/showthread.php?t=977525&page=3)) \\ The black partition at the end of the tape measure is where the diaphragm is. Note the size of the diaphragm.|| | |Mechanic stethoscope. ((photos by asasial of the XLFORUM http://xlforum.net/forums/showthread.php?t=977525&page=3)) \\ The black partition at the end of the tape measure is where the diaphragm is. Note the size of the diaphragm.|| | ||
|{{:techtalk:ref:tools:stethoscope_1_by_asasial.jpg?direct&300|}}|{{:techtalk:ref:tools:stethoscope_2_by_asasial.jpg?direct&300|}}| | |{{:techtalk:ref:tools:stethoscope_1_by_asasial.jpg?direct&300|}}|{{:techtalk:ref:tools:stethoscope_2_by_asasial.jpg?direct&300|}}| | ||
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+ | ===== Rubber Hose ===== | ||
+ | This can be a spare piece of oil line or even a cut off piece of garden hose. \\ | ||
+ | Hold one end up to your ear and the other end against the testing site. \\ | ||
\\ | \\ |