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Originally Posted by Turbo  so how are they doing the mod between the heat and start? |
I've done it two ways. The cheap way is the "
Ford switch" mod, where you replace the OE keyswitch with a common Ford cold start switch. It's configured internally to provide battery as I described above. Better method is to install a starter relay. Better yet is to also add a glow plug relay, and the charging voltage bypass wire (which you already know about). I started with the Ford switch on my Jinmas, then graduated to the triple whammy on my TS354C.
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Originally Posted by Turbo also what make the glow plug short to ground when it burn out instead of going to an open? any idea? |
The glow plug casing threads into the block. That's its ground. Voltage is fed to an insulated center conductor, which is electrically isolated from the casing. When a glow plug burns out, contact occurs between the center conductor and the casing. Voltage + ground = blown fuse.
//greg//