From: Bob Ternes (racecadet@yahoo.com)
Date: Tue Aug 17 2004 - 10:41:29 PDT
Well, they do make such a beast, called the
mechanic's stethoscope. It's essentially a
doctor's stethoscope with a long metal tube where
the diaphram usually is.
The homebrew way to do the same thing is to use
some miscellaneous piece of hose floating around
your shop (hopefully clean of whatever liquid
you've recently used the hose to siphon or
bleed), stick one end in your ear canal, and then
point the other end where you need to diagnose
your noise. If need be, tape a stick or coat
hanger (bonus points for using both duct tape and
baling wire) to the hose, especially if you're
working around things like whirring belts or fan
blades, and definitely if you're also working
around a well stocked beer fridge. ;)
Cheers
Bob Ternes
1968 M35a2 that just sprung a FANTASTIC fuel leak
between injector pump and fuel filter, thankfully
I run biodiesel
--- Bjorn Brandstedt <super_deuce@hotmail.com>
wrote:
> Is there such a thing as a highly directional
> microphone that can be used
> for pinpointing sound sources within an engine
> compartment? Sometimes it's
> hard to tell where a particular sound comes
> from. Being able to isolate the
> sounds from each and every component could be
> very helpful.
> Just thinking out loud.
> Bjorn
>
>
>
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