Good morning all - I hope your weekend projects are going as well as mine...
I have an 'earth' side master switch I want to install on my project for a
combination safety and theft prevention. see:
http://www.autoelectricsupplies.co.uk/product/144
My plan was to place it on the underside of the dash support bar (steering
column side) by cutting a hole in upper right (driver's) side of the battery
box, using a grommet (probably the same one as the wiper) for insulation
purposes. Also, I was going to put some heat-shrink insulation on it from
just before the hole to the connection on the switch. To make it look
original (and to hide the fact that there is a switch) - I am going to
somehow connect a fake end to the firewall above the battery, feeding it
from the heat shrink portion of the ground cable.
I need to locate a good spot to attach to ground after the switch that won't
create havoc to instruments, etc under the dash. Any suggestions? Pedal
'box' mounting bolts?
Also, a side affect I hadn't planned on with having both the body tub &
chassis powder coated - any suggestions on how to insure a good solid
ground. Would attaching a cable (similar to the engine to chassis ground)
from the tub to the chassis in a couple places suffice? Perhaps one at the
firewall and the other at the back somewhere. I'd need to grind to metal
for the connection.
Finally, one of those inquiring mind kind of questions. The concept of
electrical current is that there is a circuit coming from the battery to the
load and back through the 'ground' to the battery to complete the circle.
If a person touches both sides in a house circuit - you definitely feel it.
However, if the car metal (chassis/body) is the grounding side - why isn't
there an issue? Or am I thinking it through wrong.
As always - thanks for the responses.
Carl
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