danger Posted December 27, 2006 Share Posted December 27, 2006 Just did a bit of maintainence on my dirty old escort 1300 wagon. Chucked on a random Bosch GT40 coil I had lying around while I was at it. Thing is, is I just took it for a rip around the block. Probably no more than 3 minutes of running. Got home and I could smell something. The chassis earth right next to the battery seems to have fried itself and the negative terminal has tried to weld itself to my bonnet, leaving a nice big burn mark about the size of a 20c coin on both sides... Was I just unlucky and the leads given out or is it something to do with my new coil? Quote Link to comment Share on other sites More sharing options...
pies Posted December 27, 2006 Share Posted December 27, 2006 dont know if this will have anything to do with it, but are you running a resisto on your coil? if so, you probably should be running a gt40r... not the standard gt40 Quote Link to comment Share on other sites More sharing options...
CaMpylobacter Posted December 27, 2006 Share Posted December 27, 2006 gt40s are shithouse biff it out. you're far better off with stock 12v lucas Quote Link to comment Share on other sites More sharing options...
Hemi Posted December 27, 2006 Share Posted December 27, 2006 apparently the escorts wire is already resisted but i was running both a gt40r and a gt40 and they both ran fine Quote Link to comment Share on other sites More sharing options...
danger Posted December 27, 2006 Author Share Posted December 27, 2006 Yeah it had a shitty motocraft that disagree'd with me but I've got plenty around so I'll just whack a lucas in it. Fuck this though. Its completely fried the small body earthing wire but the wire still looks intact. Quote Link to comment Share on other sites More sharing options...
sholdowa Posted December 27, 2006 Share Posted December 27, 2006 I had this happen on an old citroen I owned. The earth strap to the engine had failed, and it was using whatever it could in it's place. Unfortunately for me, that was one of the oil pipes running the suspension... molten metal and oil at 2000psi does not mix. Quote Link to comment Share on other sites More sharing options...
rxsumo Posted December 27, 2006 Share Posted December 27, 2006 Check your alternator/voltage regulator. Last time I had something fry that much, one of the diodes had fallen off the back of the alternator and was shorting directly to earth once the voltage regulator kicked in. Have a look at the wiring diagram for the Escort and check which circuits have a non fused direct battery to earth connection......some of that old British stuff had stuff all fuses, and if its fried the earth there could be other damage. My old Imps had about 3 fuses for the entire car, which meant when somebody installed a cigarette lighter on the light gauge ignition circuit ....they fried the wiring back to front and did all sorts of damage as the wire melted! Quote Link to comment Share on other sites More sharing options...
RT Posted December 27, 2006 Share Posted December 27, 2006 gt40s are shithousebiff it out. you're far better off with stock 12v lucas Cam is right.. gt40's are total shite. Quote Link to comment Share on other sites More sharing options...
nismo.capri Posted December 28, 2006 Share Posted December 28, 2006 gt40s are shithousebiff it out. you're far better off with stock 12v lucas Cam is right.. gt40's are total shite. Yep, which is strange as Bosch is usually good shite Quote Link to comment Share on other sites More sharing options...
J2Racing Posted December 29, 2006 Share Posted December 29, 2006 gt40s are shithousebiff it out. you're far better off with stock 12v lucas Think I read in a Vizzard book not to fit these. Reckond you risked lossing power! Had the dyno graph to prove it. Quote Link to comment Share on other sites More sharing options...
Guest head_tech Posted January 6, 2007 Share Posted January 6, 2007 gt40s are shithousebiff it out. you're far better off with stock 12v lucas Think I read in a Vizzard book not to fit these. Reckond you risked lossing power! Had the dyno graph to prove it. which book where you reading????? I have DV book here in front of me and he makes no mention of bosch coils or a loss of power from running one! personally i have run GT40 coils and never had a problem other than with the epoxy fill ones...they burn out easy IF you leave the igintion on because they cant take as much heat as oil filled ones Quote Link to comment Share on other sites More sharing options...
J2Racing Posted January 6, 2007 Share Posted January 6, 2007 from memory it was the SOHC book. Coarse could be wrong. Quote Link to comment Share on other sites More sharing options...
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