old yeller Posted January 25, 2009 Share Posted January 25, 2009 how to tell if my 1953 IHC L110 is positive ground? Link to comment Share on other sites More sharing options...
MCHinson Posted January 25, 2009 Share Posted January 25, 2009 Old Yeller, First, Welcome to the AACA Discussion Forums.Second, is the question, "How to tell if it IS positive ground?" or is the question really, "How to tell if it is SUPPOSED to be positive ground?"If the first, that one is simple, if the other end of the cable attached to the positive terminal of the battery is connected to the frame of the vehicle, then it is a positive ground vehicle.If the second question is what you are really trying to ask, I don't know, but I bet someone here will chime in shortly with the correct answer. Link to comment Share on other sites More sharing options...
Steve Braverman Posted January 25, 2009 Share Posted January 25, 2009 Technically, you can easily reverse the polarity of most old cars. You just have to re-polarize the generator. If you hook up the battery backwards, the amp gauge will read backwards. My Franklin is supposed to be positive ground, but somewhere along the way somebody reversed it. I can't see how it matters, so I've left it that way.If there is no battery in the truck, a way to tell is to check the battery terminals. The positive post is slightly larger, and the positive terminal ring will therefore be slightly larger. Link to comment Share on other sites More sharing options...
old yeller Posted January 25, 2009 Author Share Posted January 25, 2009 thanks for the quick relply on my 53 IHC next question with the key off as soon as i touch the positive cable to the batt post it sparks & the regulator buzzes? owen.old yeller. Link to comment Share on other sites More sharing options...
F&J Posted January 26, 2009 Share Posted January 26, 2009 Take a look at the coil wiring... If the wire from the distributor (condensor and points), if that wire goes to the PLUS side on the small coil terminals, then it is set up for positive ground. and then the other small coil wire marked with the minus symbol (-) would go to the ign switch. Link to comment Share on other sites More sharing options...
Guest imported_brian j Posted January 26, 2009 Share Posted January 26, 2009 Hi. Here's my 2 cents. if you "run" a coil backwards it will work, but will ultimately burn out the coil. The "buzzing" you hear in the regulator is the polarity not set. That will also shorten the life if the regulator. Because the polarity isn't set it "pushes" the points inside the regulator away insted of pulling them together like they are supposed to be doing. Hence the "buzzing" noise. You shouldn't get any major sparking when attaching the battery with the key off. You may need to check for a "short" somewhere. The best way for you to get educated on vintage auto electrical is to hunt down an old "auto electrical" book or manual. You can find them around here and there. They are very helpful. Good luck. Link to comment Share on other sites More sharing options...
old yeller Posted January 26, 2009 Author Share Posted January 26, 2009 thanks for all your help its a great thing knowledge. start on these answers tomorrow. Owen & oid yeller. Link to comment Share on other sites More sharing options...
martin927 Posted February 2, 2009 Share Posted February 2, 2009 I had to find this out on a 1946 Nash Ambassador I purchased that had sat for 43 or so years.One battery cable was missing,so after replacing the cable,I simply installed the 6volt battery,hooked up one cable,turned on the headlights,thentouched the other cable to the remaing post,while watching the amp guage,If it shows discharge it's right,if it shows charge,it's wrong,assuming of course You have an amp guage rather than idiot lights. Hope this helps,worked for Me. Jim Peterborough Ont. Can. Link to comment Share on other sites More sharing options...
oldohioan Posted February 3, 2009 Share Posted February 3, 2009 Presuming you have no battery - but do have at least one cable.The battery posts (and the cable ends as well) are different diameter. On my 12V the + post is larger by about 1/16".Once you have the 12V battery match the cable end(s) to the right dia post. Link to comment Share on other sites More sharing options...
old yeller Posted February 6, 2009 Author Share Posted February 6, 2009 ive put on new coil ,regulator ,cyloiod spins over great this1953 ihc l100 but no spark? Link to comment Share on other sites More sharing options...
Guest Posted February 6, 2009 Share Posted February 6, 2009 Do you mean there is no spark or the engine dosn't fire??? Link to comment Share on other sites More sharing options...
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