Re: Ground Loops (non aviation)

["Bruce Plecan" <nacelp@bright.net>]

> then move ALL the grounds on the engine. Your guess about the ground loops
> is 100% on target, with 255 counts for an 8 bit adc each count is 0.0196V
> and what is the acceptible voltage drop from the battery to the block when
cranking??

Last I heard .1 volt per connection.   That really doesn't fly well with
your revolation there,
Grumpy

> Previously, you (Bruce Plecan) wrote:
> { On grounding:
> { GM seems to ground all the ecm stuff thru one point on the engine.
> { Somestimes on the heads, sometimes on the intake.  I would **ASSUME**,
this
> { is to prevent ground loops?.  Is the reason cause of where the
alternator is
> { grounded there, or the mass of the block to act a sort of a capacitor,
or
> { what?.  Would there be a big difference in grounding things at the
firewall,
> { and relying on the original ground strap, and battery cable to be the
> { grounds?.....
> { The reason I ask is that on some applications the grounds are really
> { impossible to get to.
> { Grumpy


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