CIH calls your "indicator" a resistor. Why a resistor I have no idea.
Resistance impedes current (electron) flow and reduced current flow = no glow as you've clearly seen.
I assume that the glow plugs share a common ground with the cylinder head? If so that means they are all in parallel, even though they have a common + wire hooked to their spades.
If you are wiring them, on the bench, such that you have a wire to the spade then from the glow plug body to the next spade and so on and so forth then you are wired in true series. The current draw would be very small as the resistance would be large (sum of all resistances individually = Rtotal). V=I*R and P=V*I. Glow plugs would not glow well...
Wire them in series. A common wire across the spades and then 2nd common wire from the bodies / threads back to battery ground.
This post was edited by Rootsy at 09:22:36 04/07/11 2 times.
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