Quote:
Originally Posted by funola
Power the glow plugs with the battery and observe the glow. If it gets yellow red hot at the tip it's good. I use glow plugs till they burn out, that's the time I replace them
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Yes they did show that glowing bright orange color when powered from the battery. Took them about 2-3 seconds to get to that state.
Quote:
Originally Posted by funola
Yes I understand. The glow plugs stay hot for quite a while after they are powered and their resistance go up, drawing less current. That's why the first gp you test shows lowest battery voltage and last gp highest battery voltage.
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Ah, now I understand what you meant -- good point!