Re: Positive Ground Electrical Systems

Posted by Dell (WA) on April 24, 2005 at 07:04:01 from (172.193.249.212):

In Reply to: Positive Ground Electrical Systems posted by RussellN on April 23, 2005 at 18:54:37:

Russell.........there is a real and practical reason for POSITIVE GROUND. Sparkie gap life. Under combustion pressure, the electrons are attracted from centerpost to side electrode for a slightly longer sparkplug life. Its called the Edison Effect. After ol'Tom E.

The other reason for positive ground is General Motors patent LAWYERS. You use negative 6v ground, you need to PAY.

A better question might be why 6 volts? Its the smallest cheapest battery that would relyably turn a cold starter motor.

Another question to ask, why 12v negative ground? Because the early manufacturing techniques used the GROUND as as heatsink to keep the silicon diodes from melting. They've improved manufacturing techniques since then but conviently use the diode-triode as a heatsink..........Dell

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