Quote:
Originally Posted by Brian Carlton
A factually incorrect statement.
When cold, the plug has less resistance and flows more current. When hot, the opposite situation is applicable.
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Looks like I am haveing trouble unlearning the wrong information.
(I started an electronics class ounce when I was out of work but about 2 weeks into the class I got a job an I never finished the class. I guess I am gettin payback for not finishing it now.)
http://www.peachparts.com/shopforum/member.php?u=44791
My post#11
So when the GP was cold it pulled high amps=high resistance, hot GP= Low amps and Low resistance.
A Glow Plug that is conducting the heat into the Cylinder Head due to Carbon Build up would remain cooler and pull higher amps longer and maintain a higher resistance for a longer period. My guess is this is what kills them early.
Post #16 by funola
You probably did not mean what you wrote but it is incorrect. Should be:
High amps = low resistance,
hot GP= low amps and high resistance.
My post #17
Actually, I could just be wrong; I am not so swift on the finer points of Electrical stuff.
If the plug pulls higher amps until it is hot a Plug encrusted in Carbon is conducting heat through the Carbon into the Cylinder head would maintain a Higher Amperage due to the Plug tip being cooler over a longer period. Maybe the extended high Amperage is what damages them.