same thing happened to rsdsl...
Yup, I'd like to lynch the machine shop that that put the plugs in wrong.
Just makes no sense if youre gonna be in busiess doing that, that you wouldnt purchase proper tooling. For crying out loud, shop tools are a hard write off with depreciation, you end up making money off them on both ends if you have a half decent accountant. I used to buy everything I could get my hands on and let my accountant sort it all out at the end of teh year, I'd come out ahead every time. Makes no sense for these shops to cheap out on tools and risk stiff coming back or worse, lawsuits.
As for the OP, putting a dummy plug in there is playing with fire. They put block heaters in for a reason. Heck, mine will fire with one round of the glow plugs at below -20 without being plugged in.... but there's always that ONE time, when you get a crap load of fuel , or the fusable link decides to take a vacation on you to your glow plugs and you dont have a spare handy or your controller decides its time to meet its maker, or for whatever reason, the thing doesnt want to cough, that block heater may be the only thing getting yougoing for a week or so till parts arrive, and sometimes, if you know that it's going to be snowing or icing overnight, and you need to get going in the morning, i'ts just real nice to go out to a nice to go out to a pre warmed engine that will start defrosting windows darn near right off the bat and have heat available, especially if hauling females around so you dont have to listen to " how long till this thing starts putting out some heat" for 68 blocks while you attempt to justify your no block heater decision and she is wondering why shes not with that other fella with the fancy NEW truck......