It runs off 12 volts usually and it is a resistance heater that makes a hot spot
in the chamber so a cold diesel will start. It is not timed to anything and does
not fire either. Generally used on cold days or with lower compression diesels..
On old trucks i have driven you had to turn them on and wait some number of
minutes before cranking the engine on a cold moring. Once the engine starts to
warm up they are generally not needed. On a new truck they are probably all
automatic and just run when needed and you never know the difference unless the
truck won't start..
Dave
Dan Warner wrote:
>
> Back to my original question - if it didn't have an ignition system, would
> that make it a diesel?
> ***************************************
> Jim,
>
> I'm not a diesel expert. How do you fire the glow plug, spark plug or what
> ever exists in there without some sort of ignition system? If you call it a
> diesel you must use event diesel fuel as supplied by the vender.
>
> DW
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