Most inertia switches will have a button on the top the will pop up
in an accident or hard impact to the car somewhere. This could be
anything from an accident to a large pot hole in our wonderful roads.
The power to the fuel pump or fuel pump relay will go thru the
inertia switch and when the switch is tripped it will cut the power
to the fuel pump. Inertia switches are installed on a solid part of
the chassis usually inside on the inner kick panel for access.
This could also be used as a security device when parking our
Healey's. You could wire the power to the fuel pump as well as the
power to the ignition coil thru an inertia switch mounted up under
the dash. When you park the car and want it to be secured somewhat
raise the button on the inertia switch and the car will not start.
David Nock
British Car Specialists
Stockton Ca 95205
209-948-8767
www.britishcarspecialists.com
.
.
On Jan 9, 2012, at 10:37 AM, F Ronald Rader wrote:
> David:
> for those of us the are mechanically inept, can you explain how it
> works?
> tnx
> ron rader
>
> On Mon, Jan 9, 2012 at 9:42 AM, David Nock
> <healeydoc@sbcglobal.net> wrote:
>>
>> All new cars since about 1980 have had a way to shut off the fuel in
>> case of an accident if the car was equipped with an electric fuel
>> pump. Most have an inertia switch in the power side going to the fuel
>> pump relay, they usually are mounted on the inside kick panel behind
>> the upholstery trim.
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