Re: [MV] Diagnosing engine compartment noises

From: D O (dohe69@hotmail.com)
Date: Thu Aug 19 2004 - 06:23:45 PDT


There is an electronic device called "Chassis Ears" that has 6 or so leads
to be clipped in various places on a vehicle. The main box has a rotary
switch so you can listen to each lead separately, and see what is making the
most noise.

>From: "Bjorn Brandstedt" <super_deuce@hotmail.com>
>To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
>Subject: Re: [MV] Diagnosing engine compartment noises
>Date: Thu, 19 Aug 2004 07:12:12 -0400
>
>
>Thanks guys for your answers! I kind of knew about the stethoscope and was
>more or less looking for electronic listining devices (like Alex
>suggested).
>Thanks again to all that responded.
>Bjorn
>
>>From: Patrick Jankowiak <recycler@swbell.net>
>>To: Bjorn Brandstedt <super_deuce@hotmail.com>
>>CC: Military Vehicles Mailing List <mil-veh@mil-veh.org>
>>Subject: Re: [MV] Diagnosing engine compartment noises
>>Date: Wed, 18 Aug 2004 21:45:44 -0500
>>
>>I have used a bic pen body and a rubber vacuum hose. Put the pen body in
>>the hose, and put the hose to the ear, and probe around for the noise. You
>>will hear all kinds of things. This is how I determined where my
>>ticking/squeaking noise was coming from. Not the head gaskets or
>>pilot/throwout bearing as many did guess, but a vibration between the
>>front fender and the body where a bolt was buggered up and missing.
>>
>>Bjorn Brandstedt 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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>>>
>
>
>
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